Abstract:
Using the data of from 1980’s to 1990’s, the main ecological problems of grasslands in China are analysed. The results show: the area of degraded grasslands and rat-harmed grasslands is increasing, and there is an increase of about 529.1×10~4 hm~2 of degraded grasslands and (1 437 5×)10~4 hm~2 of rat-harmed grasslands in main areas of western China during last 10 years. The quality of grasslands is dropping continuously; the ecological carrying ability of grasslands is also declining, and grassland overgrazing is getting more and more serious; the ecological function of grasslands is falling and the sandy grasslands become the main sources of sand sandstorm. Based on the analysis, some exploratory countermeasures, including controlling the degradation of grasslands from a complete drainage basin, initiating instantly a regional eco-environment protection planning, changing the investment mechanism of eco-environment protection of grasslands and improving the relationship between nature and mankind, to control the degeneration of grassland are pointed out.