FAO Soil Classification Naming Codes

[Brian Omondi]

Hi SWAT Users,

I am facing a problem with the classification of my soil data in order to help create the usersoil database. My soil data was developed using the USDA classification system but I now have to convert it to the FAO code so as to match those provided in the SWAT2012 database to help generate the usersoil table. Could someone explain to me what the second and last numbers  in the code are and where I can obtain it. E.g Af32-2ab-3, Be49-3c-20

The first letters represents the dominant soils, Ferric Acrisol ( Fe) or  Eutric Cambisol (Be), the third figure is the soil texture class (1-coarse, 2-medium, 3-course), the small leters indicate the slope class (a- level to undulating; b- rolling to hilly; c-steeply dissected to mountainous)

What does the seconnd figure 32 or 49 and the last figure represent 3 or 20  represent in the code and where can I obtain it?

Secondly, is there an alternative way to create the usersoil table without using the FAO database?  

Thanks in advance!

Regards,

Brian

[Kontraa Kontraa]

Hello!

I know that this post is over one year old but I have the same problem, and I was wondering if you found out what those numers were.

Thank you,

Arantxa