二、流水坑沟式流水坑沟式稻田养鱼是根据流水养鱼原理同稻鱼共生原理相结合发展起来的一种新的稻田养鱼法。1、稻田工程1) 稻田选择:要求水源充足,排灌方便,具有常流水,且不受干旱影响,不受洪水冲淹。水质要清新,无污染,符合养鱼水质标准。土壤以壤土、粘土 Second, flow ditch ditch flow ditch ditch fish farming is based on the principle of running water fish with rice symbiotic symbiosis developed a new type of rice farming fish law. 1, paddy field project 1) Choice of paddy field: Requires sufficient water, irrigation and drainage facilities, with regular water, and not affected by the drought, flood flooding. Water quality should be fresh, pollution-free, in line with the fish water quality standards. Soil to loam, clay