一、选择适宜湖泊 围拦养蟹应选择水深2米左右,底栖动物丰富,水草覆盖率80％以上的湖泊;面积10公顷～40公顷均可。湖泊增养殖河蟹需选择湖底较为平坦,水位落差较小,水深2米～4米,其中2米左右浅水区占湖泊总面积50％以 First, the choice of suitable lake enclosing crabs should choose about 2 meters deep, rich in benthic fauna, water coverage of more than 80% of the lake; an area of ​​10 hectares to 40 hectares can be. Lake breeding crabs need to choose the lake is relatively flat, the water level gap smaller, water depth 2 meters to 4 meters, of which about 2 meters of shallow water area accounts for 50% of the total lake area