Desertification

Desertification is a permanent or semi-permanent reduction in the capability of land for biological productivity. Over long periods of time, desertification may result from change to a more arid climate. Desertification also occurs because of irreversible reduction in the ability of the soil to supply moisture and/or nutrients to vegetation. On rangelands, soil erosion by wind or water is the most common cause for loss of soil productivity, although permanent degradation of soil structure, nutrient loss, or salinization are other possible causes. Permanent loss of soil productivity may result from natural processes or human activity.

The Society for Range Management advocates use and management of rangelands to provide sustainable benefits for people. Rangeland management should aim to prevent desertification resulting from human activity and, where feasible, to stabilize or improve productivity of lands which have already suffered such desertification. Rangeland managers should seek to identify and understand desertification processes resulting from all causes, and if possible, to mitigate adverse impacts of such processes.