文章摘要
张金婷,谢贵德,孙华.基于改进模糊综合评价法的地质异常区土壤重金属污染评价——以江苏灌南县为例[J].农业环境科学学报,2016,35(11):2107-2115.
基于改进模糊综合评价法的地质异常区土壤重金属污染评价——以江苏灌南县为例
Evaluation of soil heavy metal pollution of geological anomaly area based on improved fuzzy comprehensive evaluation method——A case study of Guannan in Jiangsu Province, China
投稿时间:2016-04-13  
DOI:10.11654/jaes.2016-0505
中文关键词: 地质异常区,重金属,组合赋权法,模糊综合评价法
英文关键词: geological anomaly area, heavy metals, combined weights, fuzzy comprehensive evaluation method
基金项目:国家自然科学基金项目(41371484);江苏省“青蓝工程”项目
作者单位E-mail
张金婷 南京农业大学资源环境与城乡规划系, 南京 210095  
谢贵德 南京农业大学资源环境与城乡规划系, 南京 210095  
孙华 南京农业大学资源环境与城乡规划系, 南京 210095 sh@njau.edu.cn 
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中文摘要:
      以江苏灌南县农产品产地为研究区,运用层次分析法和熵权法的组合赋权法以改进传统模糊综合评价法,并应用于地质异常区的土壤重金属污染的综合评价。方法改进后的结果显示,在所采集的30个样点中没有出现严重污染情况,均处于Ⅰ级与Ⅱ级之间,其中有9个样本点的评价结果偏向Ⅱ级,其余采样点均偏向Ⅰ级且各个样点的综合评价结果值波动明显。通过对这9个样点位置分布观察分析得出,这些样点呈现出在公路两侧附近分布的格局,对比分析发现这9个样点重金属Cd含量高于其他样点,研究区属于同一地质异常区,分析原因可能是以交通为主的人类活动使外源重金属进入土壤,在属于同一地质异常区的基础上加大了重金属含量,使污染评价结果相较于其样点偏高。
英文摘要:
      In this paper, the agricultural production area of Guannan County in Jiangsu Province was taken as the research area. Analytic hierarchy process and entropy law method were used to improve the traditional fuzzy comprehensive evaluation method. The improved method was applied to the comprehensive evaluation of heavy metals in soil of this region. Results showed that there was no serious pollution in the collected 30 samples and the pollution level of these samples was between Class Ⅰ and Class Ⅱ. There had nine sample points at the level Ⅱ and the other sampling points were closed to level Ⅰ. Results of comprehensive evaluation values of each sample fluctuated significantly. Observing and analyzing the position distribution of these nine samples indicated that these samples were distributed in the vicinity of both sides of the highway. Comparative analysis found that the Cd content of these nine samples was higher than other samples with a possible contribution from traffic based human activities which made the exogenous heavy metals into the soil. Anthropogenic sources such as traffic further increased concentrations of heavy metals in this geological anomaly area as indicated by pollution assessment in this study.
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