MUSLE.LS: Estimate landscape factor LS
In VFS: Vegetated Filter Strip and Erosion Model

Description Usage Arguments Value Author(s) References See Also Examples

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

1	MUSLE.LS(FieldLength, FieldSlope)

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

MUSLE landscape factor LS.

Sarah Goslee

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.

MUSLE

# 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)