关键词: T值, 风蚀, 沙漠化, 土壤侵蚀

Abstract: Soil wind erosion is the first tache of resulting in desertification. Because there isn tareasonable threshold of wind erosion tolerance(T-value), for a long time, the contradiction between land use and wind erosion control has been very serious and the measures for wind erosion control are not effective. Nevertheless, the study of wind erosion tolerance has offered us a line for wind erosion control. The standard of T-value should vary according to the specific district and the main types of land use in the district, and should have a scope to allow the T-value to fall with the development of our economy. To make the standard practical, we should weigh the inputs against outputs for the measures based on T-value. What s more, we should make some laws to ensure that the T-value standard will be put into effect, and make some policies to protect the benefits of local residents.

Key words: threshold of wind erosion tolerance, wind erosion, desertification, soil loss