府河的万金湖河滩，是孝南区府河的源头螺区，上接云梦的府河，总面积２２０万 ｍ２，１９９０年有螺面积 １８７万 ｍ２，每年５～８月份河滩淹没，呈夏水冬陆，是天然的牧场。农业生产责任制前，集体坚持在河滩种植，该河滩未发现钉螺；责任制以后，河滩抛荒，耕牛放牧增加， River bank of Wan Lake, is the source of Xiaogan District House River spiral zone, on the river Fu Yunhe, with a total area of ​​2.2 million m2, in 1987, covering an area of ​​1.87 million m2, 5 to August each year floodplain floodplain, Summer water is winter, is a natural pasture. Before the accountability system for agricultural production, the collective insisted on the cultivation of the riverbanks and the snails were not found on the riverbanks. After the accountability system, the riverbanks were abandoned and the grazing of cattle increased.