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Effects of dung deposition on grassland ecosystem: A review.

HE Yi-xin;SUN Geng;LUO Peng;WU Ning   

  1. Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2008-07-14 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10

Abstract: Dung deposition is one of the main ways that grazing affects grassland ecosystem. In this paper, the research progress on the process of dung decomposition and the effects of dung deposition on the soil physical and chemical properties, soil microbial activity, plant community structure and biomass, and livestock grazing pattern of grassland ecosystem were reviewed, and the future research on the dung deposition on grassland ecosystem was proposed.

Key words: Oryza sativa, Selenium pollution, Anti-oxidative enzymes, Ecological effect, Critical value