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太湖流域西部地区面源污染特征及其控制技术
Characteristics and control techniques of non-point pollution in the western region of Taihu Basin
【摘要】 针对太湖流域西部地区源污染的主要来源,依据由单元田间试验和小流域出口营养盐输出监测值与流域土地利用结构关系推算获得输出系数,计算了种植业典型土地利用类型的COD、TN、NH3-N和TP的排放量,结合其他种类面源排放量,指出太湖流域西部地区农业面源污染呈现出农村生活污水和种植业污染为主的排放特征。提出了面源污染适宜推广的处理模式,梳理不同种类面源污染处理存在的主要问题并相应提出面源污染控制建议,为太湖流域面源控制提供参考。
【Abstract】 As to the main source of non-point source pollution in western region of Taihu Basin,the output coefficient was got according to the relationship between the unit field experiment and the monitoring values of small watershed nutrient output and the structure of watershed land use. The emissions of COD、TN、NH3-N and TP from typical land use of planting industry were calculated. Combined with those emissions of other kinds of non-point source pollution,the authors of this paper thought that the non-point source pollution in the western region of Taihu Basin was mainly from rural sewage and planting industry pollution. The main problems existing in controlling different types of non-point source pollution were analyzed. On this basis,some treatment mode for controlling nonpoint source pollution were proposed,aiming to provide a reference for non-point source controlling in Taihu Lake watershed.
【Key words】 non-point source pollution controlling; output coefficient mode; characteristics of pollution emission; method of land use; Taihu Basin;
- 【文献出处】 水资源保护 ,Water Resources Protection , 编辑部邮箱 ,2015年01期
- 【分类号】X52
- 【被引频次】29
- 【下载频次】776