Introduction
Research site | The average temperature in January* [°C] | The average temperature in July* [°C] | The average annual rainfall* [mm] | Growing season |
---|---|---|---|---|
Poznań | -2.5 | 18.2 | 520 | 229 days** |
Lublin | -5.6 | 18.5 | 540 | 215 days** |
Lwów | -3.9 | 17.8 | 697 | 233 days*** |
Methodology
Study sites
Methods of investigation
Results
Trees in historical times
Urban fabric
Species composition
Species | Native, non-native cultivated species | Number of individuals | Age | Urban structural elements | ||||
---|---|---|---|---|---|---|---|---|
younger | mature | streets/ alleys | places/squares/ pocketparks | yards | Unmanaged greenery | |||
Betula pendula Roth. | native, cultivated sp. | 1 | 1 | - | - | - | 1 | - |
Quercus robur L. | native, cultivated sp. | 2 | 1 | 1 | - | 2 | - | - |
Carpinus betulus L. | native, cultivated sp. | 4 | - | 4 | - | 4 | - | - |
Fraxinus excelsior L. | native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Aesculus hippocastanum L. | non-native, cultivated sp., | 24 | - | 24 | 15 | - | 9 | - |
Acer platanoidesL | native, cultivated sp. | 17 | 10 | 7 | 2 | 10 | 5 | - |
Acer platanoides ‘Globosum’ | non-native, cultivated sp., | 24 | 24 | - | 24 | - | - | - |
Acer saccharinum L. | non-native, cultivated sp., | 1 | - | 1 | - | 1 | - | - |
Acer campestre L. | native, cultivated sp. | 8 | 8 | - | 8 | - | - | - |
Acer pseudoplatanus L. | native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Corylus colurna L. | non-native, cultivated sp | 1 | - | 1 | - | 1 | - | - |
Tilia cordata Mill. | native, cultivated sp. | 5 | 1 | 4 | 1 | 3 | 1 | - |
Tilia tomentosa Moench | non-native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Ginco biloba L. | non-native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Morus alba L. | non-native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Alnus glutinosae. L. | native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Juglans regia L | non-native, cultivated sp., | 2 | - | 2 | - | - | 2 | - |
Robinia pseudoacacia L. | non-native, cultivated sp., | 4 | - | 4 | - | 1 | 3 | - |
Robinia pseudoacacia‘Umbraculifera’ | non-native, cultivated sp., | 5 | 5 | - | 1 | 4 | - | - |
Pinus ponderosa Dougl. ex C.Lawson | non-native, cultivated sp. | 3 | - | 3 | - | 3 | - | - |
Rhus typhina L. | non-native, cultivated sp., | 2 | 1 | 1 | - | - | 2 | - |
Piceaabies (L.) H.Karst | native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Thuja occidentalis. L. | non-native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Ulmus minor Mill. | native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Salix babylonica | non-native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Platanus hispanica Munchh | non-native, cultivated sp | 1 | - | 1 | - | - | 1 | - |
Platanus xacerifolia (Aiton) Willd. | non-native, cultivated sp. | 14 | 14 | - | - | 14 | - | - |
Total | 128 | 65 | 63 | 51 | 49 | 28 | 0 |
Species | Native, non-native cultivated species | Number of individuals | Age | Urban structural elements | ||||
---|---|---|---|---|---|---|---|---|
younger | mature | streets/ alleys | places/squares/ pocket parks | yards | unmanaged greenery | |||
Sambucus nigra L. | native, cultivated sp., | 8 | 2 | 6 | - | - | 6 | 2 |
Syringa vulgaris L | non-native, cultivated sp., | 1 | - | 1 | - | - | 1 | - |
Ailanthus altissima Mill. | non-native, cultivated sp., | 1 | 1 | - | - | - | 1 | - |
Betula pendula Roth | native, cultivated sp. | 2 | - | 2 | - | - | 2 | - |
Taxus baccata L. | native, cultivated sp. | 2 | - | 2 | - | - | 2 | - |
Prunus avium L. | native, cultivated sp. | 1 | 1 | - | - | - | 1 | - |
Pseudotsuga menziesii | non-native, cultivated sp. | 1 | - | 1 | - | 1 | - | - |
Quercus rubra L. | non-native, cultivated sp., | 1 | - | 1 | - | 1 | - | - |
Crateages monogyna. L. | non-native, cultivated sp. | 4 | - | 4 | - | 1 | 3 | - |
Juniperus comminis L. | non-native, cultivated sp. | 6 | - | 6 | - | - | 6 | - |
Sorbus aucuparia L. | native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Fraxinus excelsior L. | native, cultivated sp. | 6 | - | 6 | 1 | 1 | 3 | 1 |
Aesculus hippocastanum L. | non-native, cultivated sp., | 1 | - | 1 | - | 1 | - | - |
Acer platanoides L. | native, cultivated sp. | 11 | 1 | 10 | 2 | 2 | 7 | - |
Acer platanoides ‘Globosum’ | non-native, cultivated sp | 4 | 4 | - | - | - | 4 | - |
Tilia cordata L. | native, cultivated sp. | 1 | 1 | - | - | 1 | - | - |
Magnolia stellatea L. | non-native, cultivated sp. | 2 | - | 2 | 1 | 1 | - | - |
Larix decidua L. | non-native, cultivated sp. | 3 | - | 3 | - | - | 3 | - |
Morus alba L. | non-native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Robinia pseudoacacia L. | non-native, cultivated sp., | 2 | - | 2 | - | 2 | - | - |
Robinia pseudoacacia ‘Umbraculifera’ | non-native, cultivated sp | 8 | 8 | - | - | 8 | - | - |
Rhus typhina L. | non-native, cultivated sp., | 4 | - | 4 | - | - | 4 | - |
Prunus domestica L. | non-native, cultivated sp., | 4 | 1 | 3 | - | - | 3 | 1 |
Picea abies (L.) H.Karst. | native, cultivated sp. | 5 | 4 | 1 | - | 1 | 4 | - |
Ulmus minor Mill. | native, cultivated sp. | 2 | - | 2 | - | 2 | - | - |
Salix alba L. | native, cultivated sp. | 2 | - | 2 | - | - | 2 | - |
Thuja occidentalis | non-native, cultivated sp. | 1 | - | 1 | - | - | 1 | - |
Total | 85 | 19 | 66 | 4 | 22 | 55 | 4 |
Species | Native, non-native cultivated species | Number of individuals | Age | Urban structural elements | |||
---|---|---|---|---|---|---|---|
younger | mature | streets/ alleys | places/squares/pocket parks | yards | |||
Betula pendula Roth | native, cultivated sp. | 4 | - | 4 | - | 4 | - |
Fagus sylvatica L. | native, cultivated sp. | 1 | - | 1 | - | 1 | - |
Prunus avium L. | native, cultivated sp. | 2 | - | 2 | 2 | - | - |
Gleditsia triacanthos L. | non-native, cultivated sp. | 3 | 3 | - | - | 3 | - |
Crateagus laevigata ‘Paul’s Scarlet’L. | non-native, cultivated sp. | 7 | 7 | - | 7 | - | - |
Pyrus communis L. | non-native, cultivated sp. | 1 | - | 1 | - | - | 1 |
Malus baccata Borkh. | non-native, cultivated sp. | 1 | - | 1 | 1 | - | - |
Juniperus communis L. | non-native, cultivated sp. | 1 | 1 | - | - | 1 | - |
Sorbus aucuparia L. | native, cultivated sp. | 3 | - | 3 | 2 | 1 | - |
Fraxinus excelsior L. | native, cultivated sp. | 21 | 3 | 18 | 15 | 5 | 1 |
Aesculus hippocastanum L. | non-native, cultivated sp. | 12 | 6 | 6 | 4 | 8 | - |
Acer platanoides L. | native, cultivated sp. | 23 | - | 23 | 7 | 16 | - |
Acer platanoides ‘Globosum’ | non-native, cultivated sp | 1 | 1 | - | 1 | - | - |
Tilia cordata Mill. | native, cultivated sp. | 47 | 1 | 46 | 1 | 46 | - |
Magnolia spp. L. | non-native, cultivated sp. | 1 | 1 | - | 1 | - | - |
Juglans regia L. | non-native, cultivated sp | 1 | - | 1 | 1 | - | - |
Robinia pseudoacacia L. | non-native, cultivated sp | 1 | - | 1 | 1 | - | - |
Pinus sylvestris L. | native, cultivated sp. | 1 | 1 | - | - | 1 | - |
Prunus domestica L. | non-native, cultivated sp., | 10 | 2 | 8 | 4 | 4 | 2 |
Picea pungens Engelm. | cultivated sp. | 4 | 3 | 1 | - | 4 | - |
Populus alba L. | native, cultivated sp. | 3 | - | 3 | 1 | - | 2 |
Salix alba L. | native, cultivated sp. | 10 | 9 | 1 | 1 | 1 | 8 |
Thuja occidentalis | non-native, cultivated sp. | 43 | 43 | - | 1 | 38 | 4 |
Total | 201 | 81 | 120 | 50 | 133 | 18 |