农村多水塘系统中污染物来源评价——以陈集镇为例  

Assessment of the Pollutants in Multi-Ponds System of Rural Areas——A Case Study of Chenji Town

作　　者：李玉凤[1] 刘红玉[1] 朱丽娟[1] 郝敬峰[1] 

机构地区：[1]江苏省环境演变与生态建设重点实验室,南京师范大学地理科学学院,江苏南京210046

出　　处：《南京师大学报（自然科学版）》2009年第1期136-140,共5页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：国家自然科学基金(40871084);高等学校博士学科点专项科研基金(20070319001)资助项目

摘　　要：由于南方多水塘系统的农村景观结构分布广泛,合理利用这样的系统对农村面源污染的控制具有非常重要的意义,那么定量分析水塘污染物的来源及其分布特征是完善和管理多水塘系统的基础.本文从经济和环境协调发展的角度出发,选择经济正在迅速发展的陈集镇作为研究对象,采用GIS技术进行空间分析,运用样点试验采集点状数据研究区域内水塘污染物来源及分布特征.结果表明:水塘中的污染物来源主要包括乡镇企业、水田、居民地和其他用地,其中受水田影响的水塘占总水塘数的60%;受工业污染和农业污染影响的水塘的水质污染指数已经超出了农业用水的警戒水平.因此,对多水塘系统的管理和完善要有针对性.The muhiple ponds system is widely distributed in South China. The appropriate use of the system is very im- portant to the non-point source pollution controlled in rural areas. Therefore, the quantitative analysis for the sources and distribution characteristics of the ponds pollutant is the foundation to improve and man^e the multiple ponds system. This article is written from the point of view that the development of economy should be in harmony with the environment. So Chenji Town, whose economy is developed quickly, is chosen as the study area. The methods of spatial analysis of GIS and sample collecting were used to analyze the sources and distribution characteristics of the ponds pollutant in study area. The results show that the main sources of the pollutant are township-enterprises, paddy fields, residential areas, and other landuse. The ponds affected by paddy fields takes up 60%. It also found that the water quality assessment index of the ponds which affected by industry and agriculture go beyond the precaution of irrigation. As a result, the management and perfection of the multiple ponds system should be pointed.

关 键 词：多水塘系统 农村景观 养分来源 水质评价 

分 类 号：X21[环境科学与工程—环境科学] S181[农业科学—农业基础科学]