摘要
对土壤环境容量这一具有多方面应用价值的科学命题的由来、发展和新的认识进行探讨．它表明，以污染物总量表示的土壤环境容量应该参照土壤中污染物的有效态、长期效应和相互作用进行校正．根据现有确定土壤环境容量的程序以及野外调查、盆栽试验和土柱模拟的结果，对浙江省金华市郊广泛分布的红壤中Ａｓ、Ｃｒ和Ｐｂ的环境容量进行了计算，并就其某些应用作了扼要说明．结果表明，土壤环境容量在实践上有Ｋ＿ｓ、Ｋ＿ｄ、Ｋ＿ａ、Ｋ＿ｖ和Ｋ＿ｒ五种类型；它们在数值上既有差异，又相互接近．
The origin,development and new cognition of soil-environmental capacity were dis-cussed as a scientific subject with various applied values. It indicated that soil-environmental capac-ity expressed as total amount of pollutants should be revised with reference to available forms,long-term effects and interaction of pollutants in soil.According to an existing procedure for deter-mining on soil-environmental capacity and results from field investigaions,pot-culture tests and soil-column modelling,environmtal capacity of As, Cr and Pb in the red soil which was extensively distributed in the suburbs of Jinhua city located in Zhejiang Province was calculated, and its appli-cations were simply expounded.The conclusion showed that soil-environmental capacity has five types including K_s,K_d,K_a,K_v and K_r,in practice;these values not only differ each other,but al-so are close to each other.
关键词
土壤
环境容量
污染物
soil
environmental capacity
pollutant
