Article Figures & Data
Figures
- Figure 1.
Estimates of tons of carbon stored per acre for urban forests of varying tree cover. Estimates are given for 4 different diameter distributions (Type 1-3 and Average - see Table 1).
- Figure 2.
Estimates of tons of carbon sequestered annually per acre for urban forests of varying tree cover. Estimates are given for 4 different diameter distributions (Type 1-3 and Average - see Table 1).
- Figure 3.
Annual carbon sequestration rates for one hardwood tree (sugar maple, Acer saccharum) and one conifer tree (eastern white pine, Pinus strobus).
- Figure 4.
Cumulative amount of carbon sequestered by 500 and 1,000 hardwood trees (sugar maple, Acer saccharum), and emitted by a building with an annual carbon emission rate of 30.9 tons.
- Figure 5.
Cumulative amount of carbon sequestered by 500 and 1,000 conifer trees (eastern white pine, Pinus strobus), and emitted by a building with an annual carbon emission rate of 30.9 tons.
Tables
- Table 1. Percent of population within 6-inch diameter classes with Type 1-3 population distributions (6) and average of all three distributions.
Distrbution type Diameter class (in.) ‘ 0-6 7-12 13-18 19-24 25-30 <30 Type 1 42 27 14 10 6 1 Type 2 21 29 26 8 8 8 Type 3 23 15 20 16 18 8 Avg. 29 24 20 11 11 6 - Table 2. The number of seedlings, 15 gallon (1” dbh) or 10 year old (3” dbh) trees required for an individual of a given age to steward for life to account for the 2.3 tons/year of per capita United States carbon dioxide emissions.
Age Number of seedlings 15 Gallon trees 10-Year-old trees 0 45 40 30 10 60 50 35 20 80 65 40 30 120 85 50 40 210 135 70 50 550 255 95 Age Diameter (in.) 10 3 30 12 50 24 70 35 90 44
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