JOURNAL OF NATURAL RESOURCES ›› 2013, Vol. 28 ›› Issue (7): 1209-1220.doi: 10.11849/zrzyxb.2013.07.013

• Resources Evaluation • Previous Articles     Next Articles

Evaluation of Rangeland Ecosystem Sustainability of the Northern Tibetan Region, China

LIU Xing-yuan, WANG Wei   

  1. State Key Lab. of Grassland Agro-ecosystems, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou 730020, China
  • Received:2012-05-30 Revised:2012-08-29 Online:2013-07-20 Published:2013-07-20

Abstract:

Rangeland on northern Tibetan Plateau is an important base for livestock production, and also plays a vital role in the ecological safety shelter zone in China. However, a series of ecological, economic and social problems were derived from the degradation of rangeland in the northern Tibetan which in return has not only directly threatened the ecological safety shelter zone in China and the animal husbandry production, but also resulted in negative effects on the regional sustainable development of rangeland ecosystem. Taking the Nagqu region in northern Tibet as a case, this study, applying complex ecosystem field theory, established an evaluation index system and models of rangeland sustainable development based on the ecological, productive and livelihood functions of rangeland ecosystem. The variation of sustainable development of rangeland ecosystem during 1985 to 2008 was analyzed, and sustainability was quantitatively evaluated in the Nagqu region of northern Tibet. The evaluation results showed that the development location of rangeland ecosystem exceeded its maximum carrying capacity, and that development potential, harmonious degree and the sustainable development degree of alpine rangeland ecosystem was very low, indicating that rangelands ecosystem was in an unsustainable development situation in the Nagqu region of northern Tibet.

Key words: rangeland ecosystem, evaluation of sustainable development, complex ecosystem field method, northern Tibetan region

CLC Number: 

  • S812.8