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应用生态学报 ›› 2002, Vol. ›› Issue (8): 1033-1036.

• 研究论文 • 上一篇    下一篇

土壤侵蚀预报模型中的植被覆盖与管理因子研究进展

张岩1, 袁建平2, 刘宝元1   

  1. 1. 北京师范大学资源与环境科学系环境演变与自然灾害教育部重点实验室, 北京 100875;
    2. 水利部水土保持监测中心, 北京 100053
  • 收稿日期:2002-04-07 修回日期:2002-05-23 出版日期:2002-08-15
  • 通讯作者: 张岩,女,1970年生,博士生,主要从事土壤侵蚀与水土保持学研究.E-mail:zhang_yan@mail.bnu.edu.cn
  • 基金资助:
    国家重点基础研究发展规划项目(G2000018602);教育部重点科技资助项目

Advance in researches on vegetation cover and management factor in the soil erosion prediction model

ZHANG Yan1, YUAN Jianping2, LIU Baoyuan 1   

  1. 1. Key Laboratory of Environmental Change and Natural Disaster, the Educational Ministry of China, Beijing Normal University, Beijing 100875;
    2. Soil and Water Conservation Center, the Ministry of Water Conservation Center, the Ministry of Water Conservancy of China
  • Received:2002-04-07 Revised:2002-05-23 Online:2002-08-15

摘要: 植被覆盖和土地管理措施是土壤侵蚀的主要抑制因素之一.通用土壤流失方程(USLE)中的植被覆盖与田间管理因子(C)是评价这种抑制作用的有效指标,并被广泛采用和深入研究.我国在这方面的研究还不能满足土壤侵蚀预报和水土保持规划的要求.在系统回顾该因子的研究历史的基础上,介绍了USLE和RUSLE中C因子估计方法及其不断改进和完善的过程,并概述了中国的覆盖与田间管理因子的研究进展.此外,总结国内在(C)因子估计值以及植被覆盖度、地面覆盖物和植被根系对土壤侵蚀的影响等方面研究成果,分析了目前我国覆盖与田间管理因子研究中存在的3个方面问题,并提出了前景展望.

关键词: 土壤侵蚀预报, 通用土壤流失方程式, 植被覆盖, 管理因子

Abstract: Vegetation cover and land management are the main limiting factors of soil erosion,and quantitative evaluation on the effect of different vegetation on soil erosion is essential to land use and soil conservation planning. The vegetation cover and management factor (C) in the universal soil loss equation (USLE) is an index to evaluate this effect,which has been studied deeply and used widely. However, the Cfactor study is insufficient in China. In order to strengthen the research of C factor, this paper reviewed the developing progress of Cfactor,and compared the methods of estimating C value in different USLEversions. The relative studies in China were also summarized from the aspects of vegetation canopy coverage, soil surface cover, and root density. Three problems in C factor study were pointed out.The autors suggested that cropland C factor research should be furthered,and its methodology should be unified in China to represent reliable Cvalues for soil loss prediction and conservation planning.

Key words: Soil erosion prediction, Universal soil loss equation(USLE), Vegetation cover, Management factor

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