三江平原地处黑龙江省的东北隅。沼泽面积达1678.9万亩,平原沼泽率高达21％,大部分尚未开发利用。根据国家“七·五”科技攻关项目内容,我们于1987～1989年在黑龙江省的宝清县进行了沼泽地开发养鱼试验.试验水面达571亩,水源为沼泽性河水.三年平均亩产成鱼75公斤,使亩产值仅3～5元的荒芜沼泽提高到每亩90一110元,取得了良好的经济效益。 Sanjiang Plain is located in the northeast corner of Heilongjiang Province. Swamp area amounts to 16789000 mus, plain swamp rate as high as 21%, most of the undeveloped and utilized. According to the national “Seventh Five-Year” scientific and technological project, we conducted a marshland test for fish culture in Baoqing County, Heilongjiang Province from 1987 to 1989. The water surface is 571 mu and the water source is swamp river. Produce 75 kilograms of fish, so that the per-mu yield of only 3 to 5 yuan barren swamps increased to 90 a 110 yuan per acre, and achieved good economic returns.