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- Table 1.
Trees observed in complete urban municipal tree census inventories from 11 communities across north-central New Jersey. A listing of the most common species occurring in each size class by planting zone typology, their occurrence in the data set, and the maximum range observed DBH. Entries in bold italic were used within species-specific analysis, given their occurrence in adequate numbers across all planting typologies.
Species Planting zone tvpology Pit Strip Non-limited Small Acer palmatum 0 7 84 Cornus florida 0 16 304 Prunus serrulata 1 87 770 Syringa reticulata 8 107 34 Medium Acer campestre 0 45 61 Carpinus betulus 1 263 44 Cladrastis kentukea 0 18 62 Phellodendron amurense 1 14 60 Picea pungens 0 6 178 Prunus yedoensis 0 3 165 Pyrus calleryanaz 136 714 687 Sophora japonica 4 24 76 Large Acer platanoides 94 4052 3304 Acer pseudoplatanus 0 14 69 Acer rubrum 30 1404 2408 Acer saccharinum 8 530 392 Acer saccharum 30 694 1280 Aesculus hippocastanum 9 49 89 Gleditsia triacanthos 60 225 507 Platanus × acerifolia 43 1411 883 Prunus serotina 0 13 618 Quercus alba 3 9 226 Quercus bicolor 5 69 140 Quercus coccinea 3 39 262 Quercus palustris 66 1973 3358 Quercus phellos 8 36 172 Quercus rubra 32 337 1494 Quercus velutina 1 20 205 Tilia cordata 32 332 551 Ulmus americana 11 60 339 Zelkova serrata 47 529 343 ↵zCultivar popularized and gained rapid, wide adaptation.
- Table 2.
Trees in central and northern New Jersey at the 95th percentile (maximum observed), DBH values including average DBH (cm) and maximum DBH (cm) observed. Letters within row were deemed statistically significant at alpha = 0.05.
Species Pit Max Average Planting strip Max Average Non-limited Max Average Acer platanoides 42 27.34a 27.5 27.3a 43.5 30.7b Acer rubrum 27.5 11.9a 41 31b 46 32.3b Acer sacchariunum 33.5 33.5a 49 40.6b 56 45.7c Acer saccharum 36z 32.1ab 34 29.4a 45 34.9b Gleditsia triacanthos 15.5 15.5a 27.5 19.9a 45 32.1b Platanus × acerifolia 42 39.3a 49 38.4a 61 41.6a Pyrus calleryana 21.5 18.1ab 24 17.4a 25 21.5b Quercus palustris 45.5z 33.7a 44 36.0b 80 41.0c Quercus rubra 34 33.5a 50 38.4b 71 48.2c Tilia cordata 27.5 24.5a 39.5 31.4b 45 36.9c Zelkova serrata 9.5 9.5a 22 16.9b 37.3 28.7c ↵zAll trees in category were observed to be recommended for removal on condition appraisal.
- Table 3.
Central and northern New Jersey maximum size expectations. General Linear Model, DBH (cm) versus planting site type and planting tree size and comparisons of means.
Factor Type Levels Values Site typology fixed 3 non-limited, planting strip, tree pit large, medium, small Species size fixed 3 Source DF F P Site typology 2 26.63 <0.001 Species size 2 187.00 <0.001 Interaction 4 2.81 0.024 - Table 4.
Comparison of DBH means (cm) in species size versus site typology with Bonferroni protection in pre-planned contrasts. Letters in column denote statistical significant at alpha = 0.05.
Site typology Species size Small Medium Large Non-limited 26.0 (b) 57.8 (b) 94.2 (b) Planting strip 19.5 (a) 33.7 (a) 79.5 (a) Tree pit 13.8 (a) 37.8 (a) 71.4 (a)
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