About The Author

Todd H. Skaggs is a researcher affiliated with Agricultural Research Service.

Mapping Soil Salinity From Space: Keeping An Eye On Degradation Of The World’s Farmland

The presence of soluble salts, such as sodium chloride, in agricultural soils can dramatically reduce crop yield. In irrigated agriculture, especially in arid and semi-arid areas, the buildup of salts in the soil profile is driven by several evapotranspiration processes that remove water from soil pores while leaving salts behind. The accumulation of salts can