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Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.

NAME

r.soillossbare - Calculates annual soil loss [t/(ha*a)] for bare soil. Use r.soillosscropland.py afterwards for grown soil.

KEYWORDS

erosion, raster, bare soil, potential soilloss

SYNOPSIS

r.soillossbare
r.soillossbare --help
r.soillossbare [-r] soillossbare=name flowaccmethod=name elevation=name resolution=float kfactor=name rfactor=name [fieldblock=name] [map=name] [flowacc=name] [constant_m=float] [constant_n=float] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-r
Remove intermediate results
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

soillossbare=name [required]
Output map (soilloss for ungrown soil)
flowaccmethod=name [required]
Module for flowaccumulation calculation
Options: r.terraflow, r.flow, r.watershed
Default: r.terraflow
elevation=name [required]
Digital Elevation Model
resolution=float [required]
Resolution of Digital Elevation Model (x y)
Default: 2
kfactor=name [required]
K-Factor (soil erodibility factor)
rfactor=name [required]
R-Factor (rain erosivity factor)
fieldblock=name
Fieldblock raster map with NULL/0-values as barrier
map=name
Fieldblock vector map
flowacc=name
Flowaccumulation raster map (instead of calculation)
constant_m=float
RUSLE3D exponential m (0.2..0.6)
Default: 0.4
constant_n=float
RUSLE3D exponential n (1.2..1.6)
Default: 1.3

Table of contents

DESCRIPTION

r.soillossbare calculates the annual soil loss [t/(ha*a)] for bare soil. Generates a "out_soillossbare" raster map and intermediate results.

Also use r.soillosscropland afterwards for grown soil.

REFERENCES

Mitasova H, Mitas L, 1999. Modeling soil detachment with RUSLE 3d using GIS. http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/erosion/usle.html

SEE ALSO

r.soillosscropland

AUTHOR

Martin Zbinden

SOURCE CODE

Available at: r.soillossbare source code (history)

Latest change: Monday Jun 03 21:35:37 2024 in commit: dcdac0d0eea604c982fe76531804a55ff1bb4322

Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.

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