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从影响小流域生态环境的经济活动因素分析出发,选取耕地比例、园地比例、道路通达性指数、交通用地比例、住宅用地比例、户籍人口密度及工矿用地比例等指标,运用因子分析和标准差分类法对北京山区576条小流域定量化分类,划分为高发展水平、中发展水平和低发展水平等3种类型,并针对不同类型小流域面临的问题,提出相应的防治对策。
Based on the analysis of the economic activities affecting the ecological environment in small watershed, the indexes of cultivated land proportion, garden proportion, road accessibility index, proportion of transportation land, residential land proportion, household population density and the ratio of industrial and mining land were selected. Using factor analysis and standard deviation classification Law on quantitative classification of 576 small watersheds in Beijing mountainous areas is divided into three types: high development level, medium development level and low development level. Corresponding control measures are put forward according to the problems faced by different types of small watersheds.