镇赉县位于吉林省的西北部,处于吉林、内蒙和黑龙江三省的交界处;属于季风区中温带半干旱气候,大于10℃活动积温多年平均为2922.8℃,年平均日照时数为2935.1h,无霜期135￣152d;境内有“一江两河”流过,其中嫩江在境内流程长达111.5km2,形成了该县特有的沿江经济区;养鱼总水面5. Located in the northwestern part of Jilin Province, Zhenlai County is located at the junction of Jilin, Inner Mongolia and Heilongjiang provinces. It belongs to the temperate semi-arid climate in the monsoon region. The active accumulated temperature above 10 ℃ for many years is 2922.8 ℃ and the annual average sunshine duration is 2935.1h. 135 ~ 152d; there are “one river and two rivers” flowing through, of which Nenjiang in the territory of up to 111.5km2, forming the county’s special economic zone along the Yangtze River;