生态与农村环境学报2011，Vol.27Issue(1)：93-99,7.
土壤水蚀的环境效应:影响因素、研究热点与评价指标的评述
Environmental Impacts of Soil Water Erosion: A Review of Influencing Factors, Hot Research Topics and Evaluation Indices.
摘要
Abstract
Soil erosion being an important earth surface process, its environmental impact has aroused wide attention globally world over. From the angle of its influencing factors and basic principles of the generation of its environmental effects,the processes of soil water erosion were analyzed, leading to the assumption that soil water erosion is a "passive" or "secondary" process, which is affected and restrained by natural factors and human activities. The initiation and development of soil water erosion process will also act on local and allopatric environmental systems, demonstrating a series of environmental effects. The researches oriented towards environmental effects of soil water erosion are focused mainly on effects of soil water erosion on soil quality, plant productivity and vegetation restoration, non-point source pollution risk, carbon cycling and global change. An index system for evaluation of environmental effects of soil water erosion can be established and formed of four major aspects, i.e. water, soil, atmosphere and biology. It is, however, very difficult to formulate a standardized index system adoptable to all geographic environmental conditions and scenarios due to variability of research objectives and intrinsic spatial differentiation of the earth surface. In contrast, the modular formulation approach, which integrates basic indices with optional ones, is more operable. Specific indices and approaches to acquisition and analysis of their data are all scale dependent.关键词
土壤侵蚀/指标体系/环境影响/尺度Key words
soil erosion/ index system/ environmental impact/ scale分类
资源环境引用本文复制引用
吕一河,刘国华,冯晓明..土壤水蚀的环境效应:影响因素、研究热点与评价指标的评述[J].生态与农村环境学报,2011,27(1):93-99,7.基金项目
国家基础研究发展规划项目(2007CB407205) （2007CB407205）
国家自然科学基金(40871085) （40871085）
中国科学院青年人才项目(KZCX2-YW-QN408) （KZCX2-YW-QN408）
