ABSTRACT:
A method to target potentially serious soil erosion, high field-to-stream sediment delivery ratios, and nonpoint-source sediment loads at a 1:50,000 planning scale was developed and applied to 600,000 hectares in Ontario. The erosion component uses the universal soil loss equation. The delivery-ratio mapping approach considers, in sequence, a set of influencing factors identified by detailed models. The sediment loading maps combine the erosion and delivery-ratio maps. These maps collectively flag serious soil erosion and sediment loading problems inexpensively and quickly, targeting areas for intensive site investigations and remedial measures.
Footnotes
Elizabeth A. Snell, formerly land evaluation officer with the Lands Directorate, Ontario Region, Environment Canada, currently is an environmental consultant, Rural Route 1, Cambridge, Ontario NIR 5S2.
- Copyright 1985 by the Soil and Water Conservation Society
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