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Acta Prataculturae Sinica ›› 2010, Vol. 19 ›› Issue (6): 62-71.

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The grassland degradation problems of the Minqin oasis, in the lower reaches of the Shiyang River Basin

GUO Cheng-lu1, LI Zong-li1,2, CHEN Nian-lai1, LIU Lei1   

  1. 1.Gansu Agriculture University, Lanzhou 730070, China;
    2.Institute of Geographical Science
    and Natural Resource Research, Chinese Academy of Science, Beijing 100101, China
  • Received:2010-05-31 Online:2010-06-25 Published:2010-12-20

Abstract: The Shiyang River basin is one of the continental drainage basins in China, where the water utilization degree is very high, the shortage of water resource is serious, the environment is fragile, and the social and economic development is restricted. The Minqin oasis is the hardest ecological areas. The severe degradation natural pasture not only seriously threat the ecological security but also badly affected the economic and social sustainable development. Researching the oasis grassland degradation problems is important, for the maintaining oasis security, promoting oasis sustained social and economic development. We analyzed the water cycle pattern change of the Shiyang River basin and grassland degradation of the Minqin oasis based on the evolution of water system. That: the evolved direction of oasis ecosystem is intensivly decided by the water resource quantity, quality, space-time distribution as well as development and use, and then affected by the humanity survival environment, firsthand leading to the desertification of oasis and “ecological refugee”.

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