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cje ›› 2005, Vol. ›› Issue (6): 652-656.

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Formation reason and recovering problem of the ‘black soil type' degraded alpine grassland in Qinghai-Tibetan Plateau

SHANG Zhanhuan1, LONG Ruijun1,2   

  1. 1. Department of Grassland Science, Gansu Agricultural University, Lanzhou 730070, China;
    2. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
  • Received:2004-04-20 Revised:2004-10-28 Online:2005-06-10

Abstract: The causes and ecological rebuilding of the ‘black soil type' degraded alpine grassland was summarized.Causes which contribute to the grassland degradation mainly include climate warming,glacier decreasing,over grazing,rats damaging,etc.The ecological restoration of the degraded alpine grassland relies on not only grassland development,but also reasonable management and planning.Methods such as strengthening investment for pasture regions' education,practicing long-term contracts for grassland,maintaining grassland law,should be applied to ensure the alpine grassland animal husbandry to develop healthily.The characteristic-inertia that Qinghai-Tibetan Plateau ecosystem processed might be the critical cause which resulted in the weakness of self-renew capability,frailty of ecosystem construction and difficulty in ecological restoration.Father study is needed to supply scientific foundation for the ecological restoration of Qinghai-Tibetan Plateau.

Key words: Dissolved organic matter, Soil, Organic pollutant, Environmental behaviors

CLC Number: