A simulation study of runoff and soil loss from Riparian zone using answers model
A simulation study of runoff and soil loss from Riparian zone using answers model
Mohammad Noor
ABSTRACT
Riparian areas are important ecosystems in range-lands.
Surface runo and soil loss from the un-grazed and grazed
areas of sheep Creek Colorado, U.S.A. were simulated
using the Areal Non-Point source Watershed Environment
response Simulation (ANSWERS) model. The ANSWERS model
parameters were estimated from eld measurements and
published literature. The mean runo, soil loss, maximum
erosion and maximum deposition rates simulated by the
ANSWERS model were significantly higher (P = 0.05) for
the grazed areas then for the un-grazed areas. Evidence
indicated that livestock grazing in the sheep Creek
riparian zone reduced inltration, which, in turn,
increased runo and soil loss but of minimal biological
importance.
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December 1990
Vol. 40, Iss. 4
