白龟山水库灌区位于河南省西南部,紧临自龟山水库沙河两岸,属淮河流域沙颍河水系,全灌区由南、北、西灌区组成,是一座设计灌溉面积为3.3万hm~2的大(2)型灌区。灌区自1958年兴建,到70年代初建成,共有干渠三条,南干渠长45.93km,工程占地100多公顷,支渠10条,总长84.26km,工程占地近100hm~2;北干渠长35.11km,工程占地500多公顷,支渠4条,总长 Baiguishan Reservoir Irrigation District is located in the southwestern part of Henan Province, right next to both sides of Shahe River in Tuishan Reservoir and belongs to Shaying River water system of Huaihe River Basin. The whole irrigation area is composed of south, north and west irrigation areas. It is a designed irrigation area of ​​33,000 hm 2 Large (2) Irrigation District. The irrigation area was built in 1958 and completed in the early 1970s with a total of three main channels with a total length of 45.93 km. The project covers an area of ​​more than 100 hectares and has 10 branch channels with a total length of 84.26km. The project covers an area of ​​nearly 100hm ~ 2. The project covers an area of ​​more than 500 hectares, branch 4, total length