长江流域资源与环境 >> 2008, Vol. 17 >> Issue (3): 396-396.

• 自然资源 • 上一篇    下一篇

基于集对分析法的农田土壤环境质量评价

聂 艳| 周 勇| 雷文华| 黄建武   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-05-20

SOIL ENVIRONMENTAL QUALITY EVALUATION FOR FARMLAND BASED ON THE SET PAIR ANALYSIS

NIE Yan| ZHOU Yong| LEI Wenhua| HUANG Jianwu   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-05-20

摘要:

集对分析是一种新的不确定性分析方法,其联系度概念具有鲜明的辨证性、完整性,使其成为处理不确定性问题的有效方法。农田土壤环境质量受多种因素影响,具有较强的不确定性,因此拟引入集对分析理论,以江汉平原后湖农场为研究对象,应用单因子指数法和集对分析法对其农田土壤环境质量进行综合评价。结果表明,研究区9种单要素污染程度依次为Cd>Zn>As>Cu>DDT>Hg>Cr>Pb>HCH,Cd为主要污染元素,8个地块已受到Cd的轻度污染,土壤中的农药残留主要成分为滴滴涕;集对分析结果显示8745%的农田是安全的,1255%的农田处于轻污染状态。整体而言,江汉平原农田土壤环境质量属清洁和安全范围,符合发展现代农业的要求。集对分析法为农田土壤环境质量评价提供了一种新的思路。

关键词: 农田, 土壤环境质量, 集对分析法

Abstract:

Set pair analysis is a new method applied to uncertain problems after 1990s.Relational degree has obvious dialectics and integrity in this theory.Soil environmental quality is affected by several factors,and has an uncertainty characteristic.Using the method of single pollution index and set pair analysis,a simple and useful assessment method to measure soil environmental quality was found in this paper .Results indicated that the pollution of Cd is the most serious,about eight plots were slightly polluted by Cd.Cd pollution is mostly caused by superphosphate use,gas combustion and tyre abrasion,et al.The pollution of elements followed by the order Cd>As>Cu>Zn>DDT>Hg>Cr>Pb>HCH.DDT was the main pollutant of organic pesticides with the value reaching 019 mg/kg.There were about 1255% of the study farmland being at the state of slight pollution,and 8745% of the farmland were safe.The comprehensive assessment showed that the soil environmental quality of farmland in Jianghan Plain is generally at the safe level for developing modern agriculture.The set pair analysis method has provided a new approach and typical example for soil environmental quality evaluation for farmland.

Key words: farmland, soil environmental quality, set pair analysis method

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