半流水式池塘立体养鱼，是四川省水产专家杨长荣同志试验成功的一种新的池塘养鱼形式。１０年多的实践证明，半流水式池塘立体养鱼饲养密度大、成活率高、易管理。现将这一技术介绍如下。一、池塘建造半流水式池塘立体养鱼面积以６６７平方米～６６７０平方米、水深１５米～２ Semi-current water pond three-dimensional fish, Sichuan Province, Yang Changrong aquatic experts Comrade tested a new form of pond fish. More than 10 years of practice has proved that half-flow ponds three-dimensional fish breeding density, high survival rate, easy to manage. Now introduce this technique as follows. First, the pond construction of semi-water pond three-dimensional fish culture area to 667 square meters ~ 6670 square meters, water depth 15 meters ~ 2