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Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon 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://www4.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: Mon Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55


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

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