摘要
在GIS技术的支持下,在常规考虑土壤重金属污染的情况下,综合考虑土壤肥力、立地条件和土地利用方式,以及对不同评价因子采用不同评价方法,如内梅罗指数法、模糊评价法、层次分析法,对各个评价因子采用加权指数和法进行综合指数的计算,科学评价了溧水县发展无公害农产品产地的土壤环境质量。结果表明:溧水县土壤环境质量为一级、二级的土壤分别占总面积的26％和58％,三级、四级和五级的土壤加起来约占总面积的16％。GIS强大功能支持下的综合评价方法,较常规评价方法更能反映实际情况。
Attempts were made to evaluate soil environment quality of farms producing hazard-free agriculture products in Lishui county with consideration of soil heavy metal pollution, soil fertility, terrain and land-use patterns. With the aid of the GIS technology, different evaluation factors were evaluated with different methods such as Neimieluo index method, fuzzy mathematic method, and AHP method, respectively, and the composite index with the weighted index summation method. Results showed that the acreage of soils of Grade Ⅰ and Ⅱ in quality accounted for 26% and 58%, respectively, however the acreages of soils of Grade Ⅲ, Ⅳ and Ⅴ in quality amounted to 16% aggregatedly. The results also showed that this method was better than the ordinary method in reflecting the practical situation.
出处
《土壤》
CAS
CSCD
北大核心
2006年第3期282-286,共5页
Soils
基金
"江苏省国土生态地球化学调查"项目资助。
