The National Cooperative Soil Survey identifies the following permeability classes based on soil texture (Table 1 ... for groundwater banking, dryland agriculture, summer fallow, or requiring ...

Global map of soil moisture regimes. Developed by USDA-NRCS, Soil Survey Division, World Soil Resources, Washington, DC.

If you'd like to learn more about the soil communities, we've has a selection of survey methods and identification guides. We have options for for beginners and for those with a little more experience ...