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"ref"=>"6057","species"=>"Aesculus hippocastanum","leaf_type"=>"broadleaved","start_date"=>"1950"
"ref"=>"798","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"797","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"51479","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
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"ref"=>"792","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"790","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"769","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"796","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"768","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"771","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"793","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"788","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"801","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"789","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"52526","species"=>"Betula papyrifera","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52524","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"827","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52523","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"830","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52521","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"786","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52520","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"52519","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2012"
"ref"=>"826","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"785","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"780","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"819","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"781","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"811","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"818","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"836","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"953","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52492","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
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"ref"=>"816","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"681","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"815","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"805","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"806","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"784","species"=>"Robinia pseudoacacia 'Umbraculifera'","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"814","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"813","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"693","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"957","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"458","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"456","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"452","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
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"ref"=>"451","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
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"ref"=>"454","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52494","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"2014"
"ref"=>"464","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"450","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1036","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"702","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1218","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1219","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1244","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"502","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1217","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"696","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52478","species"=>"Populus alba","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1221","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"933","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"467","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"461","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52510","species"=>"Acer cissifolium","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1035","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"501","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1222","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"494","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52564","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"935","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
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"ref"=>"1224","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"556","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52477","species"=>"Populus nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1034","species"=>"Acer rufinerve","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"937","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"938","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"581","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1024","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"932","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1225","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"939","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1251","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"555","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1226","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"582","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1240","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"942","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"578","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"346","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1252","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"579","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"944","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1227","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"695","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1080","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"583","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1032","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"945","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1230","species"=>"Catalpa bignonioides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"947","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1228","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"580","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"504","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1253","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"949","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"948","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1027","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1276","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"348","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1236","species"=>"Catalpa bignonioides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"544","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"364","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1025","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2343","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"545","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"2344","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1145","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1275","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"546","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"350","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"547","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2346","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1254","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"1078","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"351","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1277","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1148","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"548","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1060","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52563","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1061","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"361","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1273","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"362","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2352","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"353","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1016","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52416","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2354","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"409","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52550","species"=>"Fraxinus angustifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1018","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"406","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1136","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"436","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1262","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1970"
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"ref"=>"2380","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
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"ref"=>"441","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"1021","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"360","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"2381","species"=>"Salix pentandra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"374","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1255","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1995"
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"ref"=>"371","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"365","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"52421","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"109","species"=>"Salix alba","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2377","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"366","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"139","species"=>"Juglans regia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"117","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1126","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"434","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52373","species"=>"Quercus petraea","leaf_type"=>"broadleaved","start_date"=>"1980"
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"ref"=>"367","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"1302","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52423","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"142","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"124","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2532","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"402","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1301","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"126","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1084","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"416","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1086","species"=>"PRUNUS SERRUL","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1127","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"144","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"143","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1300","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1083","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"400","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"369","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"399","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"138","species"=>"Juglans regia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2364","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"431","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"370","species"=>"Crataegus laevigata","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"1082","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2326","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"129","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"136","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"425","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1299","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"401","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2521","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"128","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"127","species"=>"Platanus × hispanica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"135","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"leaf_type"=>"broadleaved","ref"=>"130","species"=>"Prunus avium","start_date"=>"1998"
"ref"=>"1085","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1129","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"2362","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"419","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"104","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2520","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"131","species"=>"Prunus avium","leaf_type"=>"broadleaved","start_date"=>"1998"
"ref"=>"2522","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"2523","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"148","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"396","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"418","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"133","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"424","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1130","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"102","species"=>"Crataegus monogyna","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"395","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"420","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"417","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2519","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1131","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"1306","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"52584","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"101","species"=>"Crataegus monogyna","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"423","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"151","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2516","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"70","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"71","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"150","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1124","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"100","species"=>"Crataegus monogyna","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"5","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"397","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"341","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52426","species"=>"Alnus incana","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"149","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1123","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"421","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"338","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2480","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"93","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"98","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"339","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1122","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"316","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"170","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2376","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1087","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"169","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2518","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2371","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2481","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"422","species"=>"Sorbus intermedia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2375","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"8","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"66","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2384","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"325","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"171","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2385","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2478","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2515","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1309","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"7","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"10","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2386","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"167","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"172","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1312","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"168","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"152","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"6","species"=>"Tilia × europaea","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1106","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2483","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2388","species"=>"Salix caprea","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"60","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1121","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2488","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2477","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"426","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"65","species"=>"Crataegus laevigata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"59","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1108","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"324","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"165","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2484","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2476","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2475","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1109","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"88","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1120","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1984","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2393","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"55","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2297","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52378","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"427","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1119","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2485","species"=>"Alnus cordata","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1089","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1111","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2512","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"319","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2391","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1983","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"163","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"17","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"58","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2392","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1118","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"12","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"162","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1117","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2510","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"175","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"52369","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"1979","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52407","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1982","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1088","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"11","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"174","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2402","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"328","species"=>"Pterocarya fraxinifolia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"330","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1981","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52406","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2401","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"1110","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2389","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"13","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"173","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1980","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2400","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1112","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"331","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2446","species"=>"Betula nigra","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1320","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"52405","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2399","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"52404","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1317","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"1116","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"64","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1113","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2397","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2288","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2298","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2462","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"160","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"63","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2396","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1115","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1986","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1114","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1319","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"52403","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2395","species"=>"Ulmus × hollandica","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1318","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"1987","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2595","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1991","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"83","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"52402","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2450","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1992","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"1993","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"89","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"158","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2594","species"=>"Acer campestre","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2299","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2451","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"1994","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1995"
"ref"=>"50","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"91","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"2002"
"ref"=>"52408","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2453","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2596","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"176","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"14","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"155","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1995","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2000"
"ref"=>"157","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"52409","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2452","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2459","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"90","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"2002"
"ref"=>"154","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"156","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2550","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2300","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2461","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2455","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2553","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"177","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2456","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1990"
"ref"=>"2301","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"153","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"1997","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2554","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"47","species"=>"Acer pseudoplatanus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"76","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"178","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2555","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1998","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"289","species"=>"Robinia pseudoacacia","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"75","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"73","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"74","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"182","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2406","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2410","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2412","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2556","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"1999","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2417","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2463","species"=>"Sorbus aria","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2552","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2302","species"=>"Populus x canescens","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2557","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52395","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1970"
"ref"=>"77","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2558","species"=>"Acer platanoides","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"264","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2569","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2568","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2567","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"193","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"41","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"79","species"=>"Acer platanoides 'Globosum'","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"253","species"=>"Betula pendula","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"192","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"42","species"=>"Alnus spaethii","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2000","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"2314","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2566","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2001","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1985"
"ref"=>"191","species"=>"Quercus robur","leaf_type"=>"broadleaved","start_date"=>"1975"
"ref"=>"2559","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"52371","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"2006"
"ref"=>"275","species"=>"Carpinus betulus","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"2560","species"=>"Alnus glutinosa","leaf_type"=>"broadleaved","start_date"=>"1980"
"ref"=>"266","species"=>"Fraxinus excelsior","leaf_type"=>"broadleaved","start_date"=>"1975"