在河南省信阳市,原本用于治理淮河而兴建的南湾湖,投放了花鲢鱼等鱼苗以后,不但净化了水质,让这里成为信阳市居民用水的一级水源地,而且还让南湾湖成为当地最大的渔业基地,让当地群众增加了收入,达到了双赢的效果。南湾水库管理局副局长李睿:“我们在南湾湖养花白鲢鱼,目的是让鲢鱼消耗湖里的浮游生物,把那些氮、磷转化成优质的蛋白质带出水体。因此,在南湾湖里搞水产养殖,对湖水水源保护非常有好处,南湾湖可用于 In Xinyang City, Henan Province, Nanwan Lake, which was originally used to govern the Huaihe River, was put with fish such as silver carp and so on. It not only purifies the water quality, but also makes it a water source for residents in Xinyang City, Lake has become the largest fishing base in the area, so that local people increased their income and achieved a win-win result. Li Rui, deputy director of Nanwan Reservoir Authority: ”We are raising silver carp in Nanwan Lake so as to let the silver carp consume the plankton in the lake and turn those nitrogen and phosphorus into high-quality protein, Engage in aquaculture in Nanwan Lake, water conservation is very beneficial to the lake, Nanwan Lake can be used to