Accession Number : ADA304565

Title :   Characterization of Changes to Bottomland Hardwood Forests and Forested Wetlands in the Cache River, Arkansas, Watershed.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s) : Graves, Mark R. ; Kress, M. R. ; Bourne, Scott

PDF Url : ADA304565

Report Date : OCT 1995

Pagination or Media Count : 41

Abstract : Spatial data analysis and image processing techniques were used to document changes to forest cover and forested wetlands in the Cache River, AR, watershed. Historical topographic maps, recent topographic maps, and digital satellite imagery were used to determine the magnitude of forest removal. Changes in forest fragmentation were quantffied based on the distribution and geometry of forest stands. Between 1935 and 1972, approximately 100,000 ha of forest cover (30 percent of the watershed area) were removed. Little change in forest cover occurred after 1975. Comparisons of forest cover with hydric soils data indicate that, in the lower watershed area, up to 80 percent of the forest removed may have been forested wetlands.

Descriptors :   *WATERSHEDS, *WETLANDS, *ENVIRONMENTAL PROTECTION, *FORESTS, *ARKANSAS, IMAGE PROCESSING, DATA PROCESSING, DIGITAL SYSTEMS, SPATIAL DISTRIBUTION, REMOVAL, COST EFFECTIVENESS, FRAGMENTATION, DISTRIBUTION, HYDROLOGY, GEOLOGY, SEDIMENT TRANSPORT, GROUND WATER, HISTORY, GEOMETRY, ECOSYSTEMS, ARMY CORPS OF ENGINEERS, VEGETATION, SOIL EROSION, TOPOGRAPHIC MAPS, AREA COVERAGE, FLOOD CONTROL, FLOOD PLAINS, SATELLITE PHOTOGRAPHY, HARDWOODS.

Subject Categories : Forestry
      Ecology
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE