Aiming at issues of natural vegetation cover area continuous reduction and eco-environment deterioration

the present situation of natural vegetative cover and its existing problem was detected clearly first adopting jointly methods of field investigation and current research results collection. Analysis results for vegetation cover degeneration reasons deduce that protection measures should include the following: to enlarge drylot feeding scale

control livestock number according to bearing capacity of grassland

increase water supply and enlarge irrigation area

develop reforestation

construct small scale artificial biosphere

and so on.