# Generalized Soil Unit Information on Soil Characteristics of FAO/UNESCO Soil Map

Among other files, there are two MS excel sheets (SU_Info.xls and Generalized_SU_Info.xls) which provide the soil profile information like pH level, Organic Carbon contains, etc. as mentioned in the SoilData.doc file.

But I'm unable to understand the above-mentioned excel files.

For example, the 2nd entry of Generalized_SU_Info.xls is for the soil unit symbol AF. AF means Ferric Acrisols (the name of the soil, from its symbol, can be found in the Digital Soil Map of the World - high-resolution map). But the subsequent entries in that excel sheets are AF 1, AF 2, and, AF 3. These numbers don't correspond to any soil type. I'm not able to understand the nomenclature of this file and am at loss in using the data like pH level, Organic Carbon content, etc.

In other words, I'm not able to link the information of these excel sheets to the actual soil types.

Can you explain to me the content of this file and how to link this information with the actual soil map?

The information in this file can be very useful input to my research.