MUSLE.LS: Estimate landscape factor LS

In sgoslee/VFS: Vegetated Filter Strip and Erosion Model

Estimate landscape factor LS

Description

Estimates MUSLE landscape factor for a homogeneous field from the field length and slope.

Usage

MUSLE.LS(FieldLength, FieldSlope)

Arguments

FieldLength	Field length (ft).
FieldSlope	Field slope (ft/ft).

Value

MUSLE landscape factor LS.

Author(s)

Sarah Goslee

References

Wischmeier, W. H. and Smith, D. D. (1978) Predicting rainfall erosion losses-a guide to conservation planning. U.S. Department of Agriculture, Agriculture Handbook No. 537.

See Also

MUSLE

Examples

# Approximate erodibility factor from soil texture.
Kf <- MUSLE.K(.3, .5, .2)

# Calculate landscape factor from field size and shape.
# 100-m field length with 2% slope
# note that MUSLE.LS takes feet
LS <- MUSLE.LS(100 * 3.28, .02)

# assume 0.4 ha cornfield with known rainfall intensity
peakd <- peak(intensity = 55, area = 0.4)

SedYield <- MUSLE(85, qp = peakd, A = .4, K = Kf, LS = LS)

sgoslee/VFS documentation built on May 25, 2022, 5:11 a.m.