Urban forests have a structural value based on the trees themselves ( e . g ., the cost of having to replace a tree with a similar tree ); they also have functional values ( either positive or negative ) based on the functions the trees perform .
The structural value of an urban forest tends to increase with a rise in the number and size of healthy trees ( Nowak et al 2002a ). Annual functional values also tend to increase with increased number and size of healthy trees . Through proper management , urban forest values can be increased ; however , the values and benefits also can decrease as the amount of healthy tree cover declines .
Urban trees in Mount Auburn Cemetery Sample Plots have the following structural values :
• Structural value : $ 3.26 million
• Carbon storage : $ 139 thousand
Urban trees in Mount Auburn Cemetery Sample Plots have the following annual functional values :
• Carbon sequestration : $ 2.99 thousand
• Avoided runoff : $ 1.41 thousand
• Pollution removal : $ 17.9 thousand
• Energy costs and carbon emission values : $ 0
( Note : negative value indicates increased energy cost and carbon emission value )
I-Tree Report of Ecosystem Analysis at Mount Auburn Cemetery Insert to the Climate Action and Sustainability Plan
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