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Publication Date

1989

Keywords

Soil erosion; Hydrologic cycle

Abstract

ABSTRACT-The hydrologic processes occurring in the landscape are a manifestation of its topographic attributes. Spatially variable topographic-based attributes permit the distribution of hydrologic and nonpoint source pollution processes to be mapped within catchments. They can be derived from Digital Elevation Models (DEMs) using a variety of Terrain Analysis Methods (TAMs). The relationships between topographic indices and the spatial distribution of the potential for surface runoff, groundwater recharge, soil erosion, and evapotranspiration are graphically illustrated.

First Page

18

Last Page

25

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