" BES Project Abstracts 2005
Institute of Ecosystem Studies

2005 BES Annual Meeting Presentation and Poster Abstracts

Urban forest structure of WS263
Nowak, D.J., B. Smith, R.V. Pouyat, I.D. Yesilonis
Abstract: Urban forest structure was assessed for WS263 using methods developed for the Urban Forest Effects (UFORE) model. WS263 was first mapped using a hierarchical land classification system that has the ability to map polygons at high resolutions. A total of 8 classification unit types were mapped in the 745 ha upper portions of the watershed. A total of 85 0.04 ha plots randomly stratified among the mapped units. In each plot data was collected on location, species, stem diameter at 1.37 m above ground (dbh), tree and crown height, crown width, canopy location, and the proportion of impervious area. WS263 had approximately 35 tree stems per ha (compared to 136 per ha for entire city) with a species area index of 2.72 (compared to 3.55 for the entire city). The ecosystem services provided by the tree cover of WS263 will be presented. These data suggest that WS263 as a whole is depurate of trees compared to other areas of Baltimore.