Abstract: Yanchi county of Ningxia is one of the severe sandy desertification areas in interlaced agropastoral zone of northern China.This paper analyses the development trend and causes of sandy desertification in this region.It can be concluded that the sandy desertification in this region tends to become more wide and severe,and that human factor is chief cause on the basis of the natural factor to lead to the sandy desertification in this region.Being against the development trend and cause of the sandy desertification in this region,combining comprehensive exploitation of agriculture and forestry and animal husbandry,the objective and practical move and basic countermeasures of control sandy desertification were put forward.

Key words: Yanchi county of Ningxia, Land sandy desertification, Development trend, Causes, Control