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cje ›› 2003, Vol. ›› Issue (5): 10-14.

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Analysis of soil anti-erodibility in western Liaoning

YU Dapao1, LIU Mingguo2, DENG Hongbing3, DAI Limin1, WANG Qingli 1   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. College of Forestry, Shenyang Agricultural University, Shenyang 110161, China;
    3. Key Laboratory of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2002-09-28 Revised:2002-11-06 Online:2003-05-10

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Abstract: Sampling the soil under Pinus tabulaeformis conifer ous forest, P. tabulaeformis and broadleaveved mixed forest, and broadleaf forest distributed in semi-arid western Liaoning, with principal components analysis(PCA), this article divided 9 soil anti-erodibility indexes into 3 classes inorganic colloid factor,organic colloid factor, and anti-dispersing factor. Results reveal the soil anti-erodibility value of up slope was lower than down slope; dry slope was lower than mesic slope; broadleaved forest was higher than mixed forest and conifer forest, and with the increase of slope gradient the value of soil anti-erositility decreased.

Key words: Urban non-point source pollution, Landscape pattern, Best Management Practices, Landscape ecological planning

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