UrbanCrowns: an assessment and monitoring tool for urban trees

Matthew Winn; Philip Araman; Sang-Mook Lee

doi:10.2737/SRS-GTR-135

Treesearch

UrbanCrowns: an assessment and monitoring tool for urban trees

Informally Refereed

Authors:

Matthew Winn, Philip Araman, Sang-Mook Lee

Year:

2011

Type:

General Technical Report

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SRS-GTR-135

Source:

Gen. Tech. Rep. SRS-135. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station, 10 p.

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Download (PDF 1.77 MB): https://research.fs.usda.gov/download/treesearch/37441.pdf

Abstract

UrbanCrowns is a Windows®-based computer program used to assess the crown characteristics of urban trees. The software analyzes side-view digital photographs of trees to compute several crown metrics, including crown height, crown diameter, live crown ratio, crown volume, crown density, and crown transparency. Potential uses of the UrbanCrowns program include monitoring individual tree growth over time, detecting disease or insect damage in early stages, and providing data to quantify tree benefits such as carbon sequestration, rainfall interception, energy conservation, pollution removal, and oxygen production.

Keywords

Crown characteristics, crown volume, monitoring, transparency, urban forestry, urban trees

Citation

Winn, Matthew F.; Araman, Philip A.; Lee, Sang-Mook. 2011. UrbanCrowns: an assessment and monitoring tool for urban trees. Gen. Tech. Rep. SRS-135. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station, 10 p.