Species composition, demographics, and ecosystem services of residential trees in Louisville, Kentucky.

Urban ecology;Residential trees;Environmental justice;Tree storm damage;Ufore model;Ecosystem services

Shannon A. Scroggins

University:University of Louisville

Department:Biology

关键词: Urban ecology;    Residential trees;    Environmental justice;    Tree storm damage;    Ufore model;    Ecosystem services;   

Others  :  https://ir.library.louisville.edu/cgi/viewcontent.cgi?article=2292&context=etd

美国|英语

来源: The Universite of Louisville's Institutional Repository

【 摘 要 】

Trees in urban residential neighborhoods provide valuable ecosystem services. Urban trees also face threats from disturbances, such as storms. In 2008, the Urban Forest Effects model was used to estimate abundance and species composition of residential trees and their ecosystem services in 10 of 26 council districts in Louisville, Kentucky. Ten tree species were found to compose half of the estimated 822,576 residential trees in the ten districts, with Celtis occidentalis being most numerous. The ability of sociodemographic and housing variables to predict the distribution of trees and ecosystem services was weak. The strongest relationships were found between % single home and % owner resident and tree number, species richness, and Shannon diversity. After two record-breaking storms in 2008 and 2009, tree canopy losses were found to be 7.9 % with concomitant decreases in ecosystem services. A survey showed only 33% of residents intended to replant lost trees.