On ecological protection, ecological construction and sustainable development of south Gansu plateau

Located in the southwest of Gansu province and the eastern edge of Qinhai Tibetan plateau, south Gansu (Gannan) plateau is a unique geographic unit of Gansu province, and has very important ecological status. With the increase of population, the development of livestock husbandry, the global warming, and the lack of protection and construction of the meadow ecosystem, a number of serious eco environmental problems have occurred in recent years. The serious and speedy degradation of the meadow ecosystem has a greatly harmful effect on the socioeconomic sustainable development of this area and even the watersheds of the Yangze and the Yellow rivers. It is very urgent to protect and construct the meadow ecosystem of this region. The authors put forward some measurements and advices for the protection and construction of the meadow ecosystem and its sustainable development of south Gansu plateau.