人所共知,许多湿生、水生植物是影响农田作物和水产养殖的敌害之一。在过去单一经营的生产方式中,一般都采取以保单一经营对象的方法加以防除。随着产业结构的变化和多种经营的发展,许多生物资源亦被多层次地利用起来。例如:稻田养鱼、稻田引排水渠养鱼、鱼塘养鹅、鸭等。这样,在一定的生态环境中一些过去的敌害植物被综合利用。所以对过去的那种为保护单一经营对象的防除方法已不可尽取。为此,我们在农垦区对20几个农场12万亩鱼稻区的主要湿生、水生植物进行调查,并根据这两类植物的水域分布和生长习性与 It is well known that many wetlands and aquatic plants are one of the predators affecting farmland crops and aquaculture. In the past, the sole mode of production was generally controlled by the policy of operating a policy. With the changes in industrial structure and the development of diversified operations, many biological resources are also being used at many levels. For example: fish farming in paddy fields, diversion of fish in paddy fields, goose breeding in fish ponds, ducks and the like. In this way, in a certain ecological environment in the past some of the enemy plants are comprehensive utilization. Therefore, it is an inextricable solution to the past prevention and control measures for the protection of single operators. For this reason, we investigated the main wet and aquatic plants in the 120,000 mu of fish-farming area in 20 farms in 20 counties. According to the water distribution and growth habits of these two types of plants,