河蟹池塘养殖技术１．池塘基本条件：池塘设计要根据河蟹生态习性，养蟹池选择靠近外河，水源充足，水质清新，无外界污染，进排水方便，土质最好是粘土沙土，通气性好的地方。池形最好是东西向，呈长方形，长宽比为５∶１，坡比为１∶３，池塘不宜太小，否则水质不易控制... Crab pond farming technology 1. Pond basic conditions: Pond design according to the ecological habits of crabs, crabs choose close to the river, adequate water, fresh water, no external pollution, easy access to drainage, the soil is best clay sand, good ventilation. Pool shape is best east-west, rectangular, aspect ratio of 5: 1, slope ratio of 1: 3, the pond should not be too small, otherwise the water quality is not easy to control ...