ARCDBA.Tree_Canopy_2000_Line

Description Spatial Attributes

Keywords
Theme: Wooded, Tree, Canpoy
Place: Prince George's County, Maryland

Description
Abstract
Wooded areas of Prince George''s County, Maryland

Purpose
Wooded areas greater than 10,000 square feet in aerial coverage were captured from aerial photography conducted Spring, 2000. These features were captured as polygons and divided into 2 subclasses, Tree Cover and Dense Tree Cover. Wooded areas dominated by coniferous vegetation were captured as Dense Tree Cover, while wooded areas dominated by deciduous, broadleaved trees were captured as Tree Cover. Tree Cover areas were labeled with "TREE COVER" annotation, while Dense Tree Cover areas were labeled with "DTREE COVER" annotation. Trees in wooded areas captured averaged at least eight feet in height. The perimeter of a wooded area was delineated by a generalized line along the outside edge of most tree trunks. All wooded areas split by roads, where the woodland canopy is noticeably split, were shown as being split into two separate polygons by an edge-of-road polygon. Single trees having a crown spread less than 10,000 square feet were not captured. Land use types (i.e., pasture land, agricultural fields, open fields, etc.) outside of the wooded area were not separately identified or graphically labeled. This layer was created based on the the orginal year 1993 base by Buchart Horn, Inc.

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