基于水质保障的南四湖湖滨带高效生态经济模式研究

Research on Efficient Ecological Economy Mode in Lakeside Zone of Nansihu Lake Based on Water Quality Protection

南四湖是南水北调东线工程重要调蓄水库。根据湖区周边的生产主导优势,运用"减量化、再利用、再循环"的农业循环经济理念,构建了"沼气-鱼-鸭-草-蘑菇-有机肥"高效生态农业种养殖模式,以高效生态农业经济模式取代传统的高污染农业耕作方式,有效支撑南四湖周边水质改善、农业面源污染物削减以及湖区周边农民生产增收、生活环境美化,对长久改善南四湖水质可起到重要作用,从根源上解决水质污染问题。

The Nansihu Lake is an important reservoir in the East Route of South - to - North Water Di- version Project. According to production advantages around the lake, an efficient ecological agricultural farm- ing and breeding mode of ＂biogas -fish- duck -grass -mushroom- organic fertilizer＂ was constructed using the agricultural circular economy theory of ＂reduction, reuse and recycle＂. The efficient ecological agricultur- al economy mode could replace the traditional high -polluting tillage method, improve water quality, reduce agricultural source pollutant, increase farmers＇ income and improve living environment surrounding the lake ef- fectively. It played an important role in long - term improvement of water quality of Nansihu Lake and solving water pollution problems from the source.