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渭源水库位于吉林省集安县榆林乡的老虎哨,是在中朝两国界河鸭绿江上双方合建的大型水利枢纽工程。水库上游鸭绿江干流我方一侧沿岸长544,2公里,平均宽12公里,总面积6,606平方公里,包括集安、浑江和长白三个县(市)的33个乡,215个村,总人口31.3万。流域内山高坡陡,沟壑纵横,陡坡耕地抬头可见。据1983年统计,共有水土流失面积约19万公顷,占总面积的27.6%,其中荒山荒地3.5万公顷,疏林地9.2万公顷,坡耕地1.5万公顷,小片荒地5,467公顷,冲刷沟1.3万多条。每到雨季,水土流失十分严重,不仅给当地人民的生产、生活带来严重灾害,而且直接威胁渭源水力发电站的正常运行。
The Weiyuan Reservoir is located in the tiger post of Yulin Township, Ji’an County, Jilin Province. It is a large-scale water conservancy project that is jointly built on both sides of the Yalu River between China and North Korea. The upper reaches of the reservoir The mainstream of the Yalu River 544,2 km along the coast of our side, an average of 12 km and a total area of 6,606 square kilometers, including the three counties (cities) of Ji’an, Hunjiang and Changbai 33 villages, 215 villages, Population 313,000. Watershed steep slope, ravines, steep slopes of cultivated land rise visible. According to 1983 statistics, the total area of soil and water loss is about 190,000 hectares, accounting for 27.6% of the total area, of which 35,000 hectares are barren hills, 92,000 hectares of sparse forests, 15,000 hectares of sloping fields, 5,467 hectares of small pieces of wasteland, Article. Every rainy season, the soil and water loss is very serious, which not only brings serious disasters to the local people’s production and life, but also directly threatens the normal operation of the Weiyuan hydropower station.