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"ref"=>"52584","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2512","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"582","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"698","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2593","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2350","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39833","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39846","species"=>"Liquidambar styraciflua","leaf_type"=>"broadleaved","start_date"=>"2007"
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"ref"=>"699","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"569","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"695","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"2524","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"568","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"544","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"705","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2518","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"39838","species"=>"Liquidambar styraciflua","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2346","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39831","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"700","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"703","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2115","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"701","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2113","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"567","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
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"ref"=>"545","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"39837","species"=>"Liquidambar styraciflua","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2110","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"546","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39835","species"=>"Liquidambar styraciflua","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2112","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2203","species"=>"Quercus rubra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"536","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"2008"
"ref"=>"565","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"2109","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39884","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"535","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"2008"
"ref"=>"2117","species"=>"Alnus rubra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39488","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"45130","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"547","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"727","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"2202","species"=>"Quercus rubra","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2352","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39885","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39830","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
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"ref"=>"534","species"=>"Acer saccharinum","leaf_type"=>"broadleaved","start_date"=>"2006"
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"ref"=>"2530","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"724","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
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"ref"=>"39483","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"548","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"726","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"39486","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2472","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52492","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
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"ref"=>"732","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2351","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39829","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2473","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"731","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2354","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39482","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"733","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39889","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2353","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"734","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2196","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"39481","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2462","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"709","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2199","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"708","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39828","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"730","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2100","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"736","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39887","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"550","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2463","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2194","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2197","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"530","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39890","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39480","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"533","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2099","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39484","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39492","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2355","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"729","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2200","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2125","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"532","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"740","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2195","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"39479","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
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"ref"=>"2198","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2475","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"722","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"52643","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"737","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52638","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"745","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"39478","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2098","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"721","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"744","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2476","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2356","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"723","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"39496","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"45138","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"2004"
"ref"=>"45238","species"=>"Fagus sylvatica","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"52641","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"743","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1977","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"741","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"712","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"538","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52642","species"=>"Salix triandra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"718","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"553","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"742","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2104","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1944","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2097","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"692","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1976","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2102","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2096","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39893","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"713","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"719","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2190","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2129","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39669","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"691","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"45089","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"2008"
"ref"=>"39499","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"45132","species"=>"Malus sieboldii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2461","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1945","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2453","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2095","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"693","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1975","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"720","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"715","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"45133","species"=>"Malus sieboldii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2185","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39667","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"45135","species"=>"Malus sieboldii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1946","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2184","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2483","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2094","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"45134","species"=>"Malus sieboldii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39670","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2189","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1974","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2364","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2484","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"714","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2452","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39665","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2380","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"689","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39498","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2480","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2481","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2187","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2090","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1947","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39668","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39505","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39663","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"690","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39477","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"1973","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39661","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"716","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2455","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2488","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"51480","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
"ref"=>"39675","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39659","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2379","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39647","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39644","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39657","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39648","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39655","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2010"
"ref"=>"39683","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39651","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39666","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39680","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39643","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39653","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39676","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1948","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2381","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39684","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2127","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2089","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"51479","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
"ref"=>"2186","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2456","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2126","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1972","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2485","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39500","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2173","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39476","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39688","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39664","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"51478","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
"ref"=>"2169","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39695","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"717","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39696","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39701","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39698","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2167","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39697","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2382","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39699","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39700","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1949","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2174","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2093","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39662","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2092","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39504","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"52551","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2478","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39645","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"436","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39646","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39649","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2171","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39642","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1971","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39650","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39652","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39673","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39654","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39678","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39677","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39660","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"525","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39674","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39681","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39658","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39656","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39682","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"516","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52550","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"515","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39685","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"757","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"2378","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39702","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2083","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2088","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"524","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39690","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1950","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39708","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2091","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"526","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39703","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39706","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2087","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39475","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39707","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39705","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"687","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"684","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1970","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"759","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"518","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2362","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"514","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2182","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"758","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1951","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2085","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"527","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39538","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39503","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"685","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1969","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2084","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2180","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2086","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"519","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"760","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39474","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"751","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2080","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2377","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"45136","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2446","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1952","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"528","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2183","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"682","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"45137","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"763","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1968","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39502","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2179","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52637","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"504","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2081","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1953","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"766","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"681","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"529","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39546","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39509","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39547","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1967","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"765","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2371","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39763","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"45957","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"2010"
"ref"=>"1954","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"680","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"521","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"764","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2406","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39548","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2082","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1966","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"508","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"679","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"52547","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2178","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39506","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"750","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"522","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"762","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1955","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2079","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39508","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1965","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39535","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"39764","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"749","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"523","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1956","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2376","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"767","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"2004"
"ref"=>"768","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"748","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1964","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"747","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2402","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2375","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2028","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39525","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2078","species"=>"Quercus frainetto","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"769","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"506","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39765","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"501","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"746","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2401","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"502","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2075","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"755","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"505","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2410","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39510","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"434","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"503","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1963","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"626","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"770","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"1957","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2077","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2035","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2400","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2076","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"628","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39766","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2177","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2029","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"771","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"627","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1958","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"678","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2399","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2412","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"629","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2030","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39512","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"772","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"2027","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"752","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2034","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2026","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39767","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2025","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1959","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"753","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2033","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"441","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2024","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"754","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2032","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2397","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39513","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2018","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2023","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"624","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2022","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1960","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"440","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"631","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2011","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2009","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2012","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2395","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2396","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2014","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2013","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2021","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"52651","species"=>"Malus floribunda","leaf_type"=>"broadleaved","start_date"=>"2013"
"ref"=>"39768","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2010","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2015","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2043","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"625","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2389","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2020","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"630","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2038","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1961","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2036","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2044","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2016","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39514","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2417","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2007","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2008","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52650","species"=>"Malus floribunda","leaf_type"=>"broadleaved","start_date"=>"2013"
"ref"=>"2006","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2037","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2393","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"622","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2074","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"804","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2039","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2391","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"677","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52649","species"=>"Malus floribunda","leaf_type"=>"broadleaved","start_date"=>"2013"
"ref"=>"2019","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"39769","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2392","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1962","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2040","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2005","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2004","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2002","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2003","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2001","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2000","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39790","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"431","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2017","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52648","species"=>"Malus floribunda","leaf_type"=>"broadleaved","start_date"=>"2013"
"ref"=>"634","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2046","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2041","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1999","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39770","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1998","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"800","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2042","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39789","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"635","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1943","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2047","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1997","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52552","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2058","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"799","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"807","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"636","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39771","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2048","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39466","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"45237","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2049","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1995","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"2057","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2056","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"45152","species"=>"Malus floribunda","leaf_type"=>"broadleaved","start_date"=>"2013"
"ref"=>"39787","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"1987","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2055","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"672","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"673","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"801","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"416","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1994","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"810","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"803","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"637","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2052","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39786","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39465","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"808","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"674","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1986","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2053","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1993","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"802","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39785","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"45154","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"2009"
"ref"=>"2067","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1940","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1992","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"39784","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2384","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"670","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2385","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39772","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39783","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"1991","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"39773","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39776","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39775","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"494","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39774","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"39782","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"2386","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2061","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2066","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2388","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"671","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"666","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1933","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"806","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"599","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2062","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"668","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2063","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52626","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1980","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1934","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2065","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"667","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2060","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"598","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39402","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"411","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"805","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2064","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"419","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1981","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1938","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"425","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"649","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1960"
"ref"=>"650","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1960"
"ref"=>"640","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1984","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"647","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1960"
"ref"=>"597","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"418","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39401","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1937","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1982","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"638","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"641","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"409","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"601","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"426","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"796","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"408","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1936","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"830","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"827","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"45052","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"417","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"812","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"639","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1983","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"424","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39400","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"1935","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"811","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"797","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"817","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1979","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"602","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"798","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"826","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"45236","species"=>"Fagus sylvatica","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"422","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"427","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"491","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"39399","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"52622","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"39458","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"818","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"816","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"492","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2068","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2004"
"ref"=>"423","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"822","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2008"
"ref"=>"421","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52655","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52624","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"1837","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"39457","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"793","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"819","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52620","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"1838","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"39456","species"=>"Pyrus calleryana","leaf_type"=>"broadleaved","start_date"=>"2007"
"ref"=>"829","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2069","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52623","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"1932","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"815","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39398","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"2071","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1839","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52616","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"52625","species"=>"Tilia cordata","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"2072","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2070","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2004"
"ref"=>"406","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1834","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1931","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1840","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52615","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"2073","species"=>"Fraxinus ornus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"814","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"836","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52617","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"420","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"407","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1842","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52619","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"52559","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"200"
"ref"=>"813","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"39397","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2005"
"ref"=>"828","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"658","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1930","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52614","species"=>"Castanea sativa","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"795","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"794","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52560","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"652","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"664","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1960"
"ref"=>"1858","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52561","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"1889","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1845","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"402","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"659","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"45156","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"657","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1929","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"656","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1859","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"653","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"45955","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"2010"
"ref"=>"45155","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"6057","species"=>"Aesculus hippocastanum","leaf_type"=>"broadleaved","start_date"=>"1950"
"ref"=>"52564","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"leaf_type"=>"broadleaved","ref"=>"1860","species"=>"Quercus robur","start_date"=>"1980"
"ref"=>"52562","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1928","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"404","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1844","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1861","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52612","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"400","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52563","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"401","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1927","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"405","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1848","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"450","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1888","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"403","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"399","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52645","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52565","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"792","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1926","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52566","species"=>"Tilia cordata","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"661","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52539","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1960"
"ref"=>"1847","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"592","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"451","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1850","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"591","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1919","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1862","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"452","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1863","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1875","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1864","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1870","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1872","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1920","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"453","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1865","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1883","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1846","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1866","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1868","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1876","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1871","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1877","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"585","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1878","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1867","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1881","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1869","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1921","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1882","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1884","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1880","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1873","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"790","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1874","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"588","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"