[GRASS-user] r.soils.texture

GRASS GRASS user
1

Hy,
I've upgrade the module r.soils.texture with FAO and ISSS texture scheme. You can define soil texture based on USDA, FAO and ISS triangle, from sand and clay GRID. The module is availabre for download from addons wiki .
I hope anibody try it.

Gianluca

2

Hy,
I'm afraid but I can't help you. But you can try r.soil.texture for your area:
1. import in grass soils sample point with sand and clay atttributes;
2. interpolate sand a nd clay surface with one algorithm available in grass (or with R interface for geostatistica analisys)
3. run r.soils.texture with your favorite scheme (USDA,ISSS,FAO) , sand and clay grid and get your texture map;

I hope it's useful.
P.S. If your next san will named Gianluca we can make a vitualy drink!
gianluca

Milton Cezar Ribeiro ha scritto:

Dear GianLuca

First of all, it is very curious, but I wife and me choose two possible names for your (born) san. One was Gian Luca, and the other was Camillo Cornetta (my wife's decendence is from Rovigo, Italy). But the choosed name was Camillo. May be the next will be Gian Luca!

Back to the work, do you know where can I find a soil texture map for Brazil ? I am looking for this kind of data for species distributio modelling. Case you can help me, I will be very grateful.

Ciao,

miltinho astronauta
brazil

2008/7/28 gianluca massei <g_massa@libero.it <mailto:g_massa@libero.it>>

    Hy,
    I've upgrade the module r.soils.texture with FAO and ISSS texture
    scheme. You can define soil texture based on USDA, FAO and ISS
    triangle, from sand and clay GRID. The module is availabre for
    download from addons wiki .
    I hope anibody try it.

    Gianluca
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    grass-user mailing list
    grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org>
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3

Milton Cezar Ribeiro ha scritto:

Back to the work, do you know where can I find a soil texture map for Brazil ? I am looking for this kind of data for species distributio modelling. Case you can help me, I will be very grateful.

You can try here:

http://eusoils.jrc.it/esdb_archive/EuDASM/EUDASM.htm

Moritz

4

Miltinho,

While it's not a texture map, this paper has a huge soil profile
database for Brasil. It was published by the people from São Paulo
Univerity - Piracicaba (You know ESALQ)

A National Soil Profile Database for Brazil Available to International
Scientists
Miguel Cooper, Lúcia Maria Silveira Mendes, Wellinton Luiz Costa Silva
and Gerd Sparovek
http://soil.scijournals.org/cgi/content/abstract/69/3/649

You could use this database to do some interpolations...

Cheers
Daniel

On Wed, Jul 30, 2008 at 4:35 AM, Moritz Lennert
<mlennert@club.worldonline.be> wrote:

Milton Cezar Ribeiro ha scritto:

Back to the work, do you know where can I find a soil texture map for
Brazil ? I am looking for this kind of data for species distributio
modelling. Case you can help me, I will be very grateful.

You can try here:

http://eusoils.jrc.it/esdb_archive/EuDASM/EUDASM.htm

Moritz
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