Land improvement scope of Zhuanglanghe River in Yongdeng County

This area covers Liu Shu Town, Datong Town, Longquansi Town and Hongcheng Town in Yongdeng County, with a total scale of 1 16600 mu.

The comprehensive land improvement and ecological restoration project of Zhuanglang River (Liu Shu Town-Hongcheng Town) in Yongdeng County involves ecological restoration of mountain surface, planting of characteristic economic forest, planting base of flowers and seedlings, construction of high-standard farmland, corridor construction, greening of highway and railway corridors, water conservancy facilities, basic supporting facilities and ancillary works.

Zhuanglang River is located in Yongdeng County, Gansu Province. It belongs to the mainstream water system of the Yellow River and is an important tributary of the Yellow River. It joins the Yellow River near Dachuan Township at the estuary. Zhuanglang River Basin is located on the left bank of the middle reaches of the Yellow River, above Lanzhou in the west of Gansu Province, with latitude from 37 27 ′ north to 3610 ′ south. It starts from the west east of 102 29' and ends east of 103 30'. It is bounded by Leigong Mountain, Wushaoling, Mao Mao Mountain and Gulang River Basin in the north, Dasong Mountain, Xiaosong Mountain and Tengger Desert in the east, and Zhugu Osaka, Heila Mountain, Maying Mountain, Maya Mountain and Datong River Basin in the west. The length of the flow field is 1.79 km, with an average width of only 23 km, which is wide in the north and narrow in the south, and all the river basins become long and narrow triangles.