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Soil SurveySoil survey is the process of determining the types or properties of the soil cover over a landscape, and mapping them for others to understand and use. It is a branch of soil science, and draws heavily from geomorphology, theories of soil formation (pedology), physical geography, and analysis of vegetation and land-use patterns. Primary data for the soil survey are acquired by field sampling, supported by remote sensing (principally vertical airphotos). It is also called soil mapping External links *A Compendium of On-Line Soil Survey Information
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