Article Figures & Data
Figures
- Fig. 1.
Street trees in an older residential neighborhood. Trees such as these were the basis of our assessment of municipal tree-care practices.
- Fig. 2.
Size distribution of trees in Ohio residential areas over 40 years old.
- Fig. 3.
A silver maple street tree with several dead or dying branches. A large portion of the crown was broken off during a storm.
Tables
- Table 1.
Number and percentage of towns that meet the performance criteria for street-tree situations, by tree-care program.
Street tree situation elementsa Established programb New or no programc Number Percent Number Percent Kinds of trees 1 25 1 10 Tree condition 10”-16” dbhd 3 75 0 0 16” dbh and above 2 50 1 10 Abundance 3 75 3 30 Size distribution 3 75 2 20 Point Score 1 1 25 5 50 2 0 0 1 10 3 1 25 0 0 4 2 50 0 0 - Table 2
Trees less than 10 inches dbh as a percentage of the street tree population in selected Ohio towns in 1977, by kind of tree and tree-care program.
Species Established program New or no program Hard maplea 26.4 33.6 Soft mapleb 25.6 30.4 Sycamore 0.0 10.8 Honeylocust 18.8 3.5 Crabapple 8.7 3.3 Basswood 7.5 2.6 Hawthorn 2.4 0.2 Mountainash 2.4 0.9 Ash 1.9 3.8 Orn. cherry 1.6 1.0 Dogwood 1.6 0.7 Sweetgum 1.2 1.6 Redbud 0.8 0.2 Boxelder 0.8 0.9 Poplar 0.4 0.0 Callery pear 0.4 0.0 Buckeye 0.4 0.0 Tuliptree 0.0 0.2 Ginko 0.0 0.2 Birch 0.0 0.2 Catalpa 0.0 0.5 Oak 0.0 0.9 Conifer sp. 0.0 1.6 Elm 0.0 1.6 - Table 3.
Percentage of trees in each condition class in residential areas over 40 years old in selected Ohio towns in 1977, by tree size and tree-care program.
Tree-care program Condition class Excellent Good Fair Poor Less than 4” dbha Established 96.6 1.5 1.2 0.7 New or none 93.4 2.1 1.9 2.6 5”-10” dbh Established 79.8 14.8 4.2 1.2 New or none 73.9 17.1 6.7 2.3 11”-16” dbh Established 62.1 27.6 8.6 1.7 New or none 48.5 23.0 21.0 7.5 Greater than 16” dbh Esablished 38.1 30.0 23.1 8.8 New or none 27.8 30.5 29.7 12.0 ↵a Diameter at breast height, 1 inch = 2.5 cm.
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