The National Cooperative Soil Survey identifies the following permeability classes based on soil texture (Table 1). These classes can be modified (qualitatively) by the degree of soil structure.

The Dust Bowl led to the creation of what is now called the Natural Resources Conservation Service. Just as it celebrates a ...

Aubrey J.D. Bettencourt, Natural Resources and Conservation Service chief, delivers some remarks during the 90th NRCS ...