grassland desertification

Desertification leads to the formation of drought and lack of rain. Soil erosion and grassland desertification and degradation will continue to cause the expansion of the area of sand region. Desertification is our country is very serious.

荒漠化导致干旱少雨小气候的形成，水土流失、草原沙化退化严重，而且荒漠沙区面积不断扩大。

The Study of Grassland Desertification Information Extraction from TM Data

TM数据草原沙漠化信息提取研究

And then over-cutting forest, over-grazing grassland, imbalance of resource utilization and estrepement reduce the coverage of vegetation, therefore provide necessary conditions for the grassland desertification.

而人为过度砍伐沙地林木资源、沙质草地长期超载放牧、资源利用不平衡以及乱垦、滥挖等不合理经济行为，又降低了沙化草地植被覆盖度，为草地风蚀沙化提供了必要条件。