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生态学杂志 ›› 2003, Vol. ›› Issue (5): 10-14.

• 研究报告 • 上一篇    下一篇

辽西地区林地土壤抗蚀性分析

于大炮1, 刘明国2, 邓红兵3, 代力民1, 王庆礼1   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳, 110016;
    2. 沈阳农业大学林学院, 沈阳, 110016;
    3. 中国科学院生态环境研究中心系统生态重点实验室, 北京, 100085
  • 收稿日期:2002-09-28 修回日期:2002-11-06 出版日期:2003-05-10
  • 基金资助:
    国家重点基础发展计划项目(G1999043407);国家科技攻关项目(2002BA516A20);国家自然科学基金(NSFC30170744)资助

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

摘要: 以半干旱的辽西地区广布的油松针叶纯林、油松针阔混交林和阔叶林林下的土壤为研究对象,通过主分量分析方法将9个抗蚀性指标分为3类:无机胶粒团聚类因子、有机胶粒团聚类因子和抗分散类因子,并以抗蚀性指数,来评价辽西地区土壤的抗蚀性,以期为辽西地区水土保持效益评价和造林树种选择提供依据.结果表明,土壤抗蚀性上坡小于下坡,阳坡半阳坡小于阴坡半阴坡;坡度越大土壤抗蚀性越差;阔叶林林下的土壤抗蚀性大于针阔混交林,大于针叶纯林.

关键词: 城市, 非点源污染, 景观格局, 最佳管理措施, 景观生态规划

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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