论文部分内容阅读
白城市位于吉林省的东北,属北温带季风性气候,平均海拔150m～160m,无霜期130天,年平均气温4．7℃,日照2600小时,年降水量400mm左右,适于河蟹的生长期在120天左右。白城市泡塘资源丰富,自2000年开始引入泡塘养蟹,即在不影响鱼类养殖的前提下向自然泡塘中投放蟹苗(扣蟹),利用泡塘中丰富的水生植物、水生动物、昆虫等饵料生物资源,并辅以投
Located in the northeast of Jilin Province, Baicheng City is a north temperate monsoon climate with an average elevation of 150m ~ 160m, frost-free period of 130 days, annual average temperature of 4.7 ℃, sunlight of 2,600 hours and annual precipitation of about 400mm. 120 days or so. Baicheng Bubba rich in resources, since 2000, the introduction of bubble pond crab, that is, without affecting the premise of fish farming to the natural bubble pond in the crab (buckle crab), the use of bubble pond rich in aquatic plants, aquatic Animals, insects and other food biological resources, supplemented by cast