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针对太湖流域农业面源污染控制难题,通过分析苏州片区农业面源污染能量流、物质流及其耦合过程,计算了太湖流域种植业、水产养殖业、禽畜养殖业的氮磷污染因子能值转换率。引入了评价农业生产活动发展可持续的定量指标能值污染系数(EPC),并测算了太湖流域苏州片区种植业、水产养殖业、禽畜养殖业的EPC分别为3.26、2 648.41和343.68。研究表明,水产养殖业能值污染系数最大,相同污染条件下产出最高。
Aiming at the problem of agricultural non-point source pollution control in Taihu Lake Basin, the energy flow, material flow and coupling process of agricultural non-point source pollution in Suzhou area were calculated, and the nitrogen and phosphorus pollution energy values of crop, aquaculture and livestock breeding in Taihu Lake Basin were calculated Conversion rate. The quantitative index EPC (Coefficient of Environmental Impact Assessment) was evaluated to evaluate the sustainable development of agricultural production activities. The EPCs of planting, aquaculture and livestock breeding in Suzhou section of Taihu Lake Basin were estimated to be 3.26, 2 648.41 and 343.68 respectively. The research shows that the coefficient of energy pollution in aquaculture is the highest, and the output is the highest under the same pollution.