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在野外调查、实测的基础上,采用因子分析、系统聚类分析的方法,根据土壤层水土保持功能的强弱,将黄浦江源区主要植被类型分为4类:落阔林、灌木林为第一类,表现出很强的水土保持功能;茶园、草地、松林为第二类,土壤水土保持功能较强;毛竹林、常绿阔叶林表现出较强的抗蚀性和抗冲性,但渗透性能并不突出,土壤贮水能力也一般,水土保持功能中等,为第三类;裸露地水土保持性能很差,单独作为第四类,其渗透性、抗蚀性、抗冲性、土壤水库容都显著小于其他各样地。
Based on field investigation and field measurement, the main vegetation types of Huangpu River source area were divided into four types according to the strength of soil and water conservation function of soil layer by factor analysis and cluster analysis. The first category showed strong soil and water conservation functions. The second type of tea plantations, grasslands and pine forests had strong soil and water conservation functions. Moso-bamboo forests and evergreen broad-leaved forests showed strong corrosion resistance and impact resistance , But the permeability is not prominent, soil water storage capacity is also general, soil and water conservation function is moderate, as the third category; bare soil and water conservation performance is poor, as a separate fourth category, its permeability, corrosion resistance, impact resistance , Soil storage capacity is significantly less than the other sites.