水系污染与社会经济发展因子的关系——以浙江省8大水系为例  

Relationship Between Water System Pollution and Socioeconomic Factors——Taking Eight Water Systems in Zhejiang Province for Example

作　　者：格日乐图[1] 王斌[1] 李正才[1] 杨校生[1] 王小明[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400

出　　处：《水土保持通报》2013年第6期141-145,共5页Bulletin of Soil and Water Conservation

基　　金：中国林业科学研究院亚热带林业研究所基本科研业务费重点资助项目"中国亚热带地区森林碳循环与固碳潜力研究"(RISF6152);浙江省与中国林科院合作项目(2008SY09)

摘　　要：浙江省8大水系是支撑该省经济发展和保障饮用水来源的主要水系。目前8大水系都呈现出不同程度的污染。通过因子分析方法，对影响浙江省8大水系污染的主要社会经济因子进行了分类。结果表明，社会经济影响因子可划分为区域经济发展水平、种植业发展、农林服务业发展水平、渔业发展水平、人口密度水平等5f大类。浙江省8大水系社会经济因子总得分排序为：甬江〉苕溪江〉曹娥江〉鳌江〉椒江〉钱塘江〉瓯江〉飞云江。当这5大因子得分同时介于-1-0时，水系水质污染程度最低。社会经济因子总得分大于3或小于-3时水污染程度最低，水系的Ⅰ-Ⅲ类水所占比例在90％以上。水系污染与经济发展水平存在一定关系，但更多是经济发展水平与其他因子综合作用的结果，水系污染与社会经济发展各因子之间的平衡发展有着密切关系。在农林业占非主导地位的地区，单位面积第一产值高低与水系污染呈正相关性关系。The eight water systems in Zhejiang Province are the main water systems that support the economic development and ensure the drinking water sources. Currently the eight water systems are polluted to various extents. The main socioeconomic factors that affect the water systems pollution could be divided into five types by factor analysis, namely, regional economic development factor, agriculture development factor, ag- riculture and forestry services factor, fishery development factor, and population density factor. Yongjiang river ranked first based on the total socioeconomic scores among the eight water systems, followed by Tiaoxi river, Cao＇e river, Aojiang river, Jiaojiang river, Qiantang river, Oujiang river, and Feiyunjiang river. Water was polluted at the least when the scores of all the five factors are between -1 and 0. On the other hand, the total score being above 3 or below --3 indicated that the water pollution degree was the lowest, with sort of Ⅰ , Ⅱ and Ⅲ water accounting for more than 90%. Water pollution is related to the level of eco- nomic development, but in a large degree, it is the result of the interaction between economic development and other factors, and ismore closed to the balanced development of the five socioeconomic factors. The wa- ter pollution degree was positively related with the unit area of first output value in the region where agricul- ture and forestry are not prominent.

关 键 词：因子分析 水系污染 水质 社会经济因子 

分 类 号：S157[农业科学—土壤学] X5[农业科学—农业基础科学]