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黑龙滩水库灌区位于仁寿县境内,属都江堰扩灌的龙泉山以东丘陵地区。工程由黑龙滩水库(囤蓄库容3亿米~3)、李家沟水库(1150万米~3)及各级渠道3312公里组成。灌溉乐山地区两县13个区104个公社,设计灌溉面积106万亩。该工程兼有发电、水产等综合效益。1972年水库建成蓄水且部分灌区受益,1982年灌溉面积达75万亩。十年累计灌溉面积为467.5万亩。
Heilongtan reservoir irrigation area is located in Renshou County, Dujiangyan weir irrigation is expanding to the east of the Longquan Hill area. The project is composed of Heilongtan Reservoir (storage capacity of 300 million meters to 3), Lijiagou Reservoir (11,500,000 meters to 3) and 3312 kilometers of channels at all levels. Irrigation Leshan two counties 13 districts 104 communes, irrigation area of 1.06 million mu. The project combines power generation, aquatic products and other comprehensive benefits. In 1972, the reservoir was completed and some of the irrigation districts benefited. In 1982, the irrigation area was 750,000 mu. Ten years total irrigation area of 467.5 hectares.