陕北黄土丘陵区淤地坝的规划和利用模式及效益评价

Silt-trap Dam Planning and Use Model and Benefit Assesment in Loess Hilly-gullied Area of the North Part of Shaanxi

淤地坝是陕北黄土丘陵沟壑区控制水土流失和建设高产农田的有效措施。文中论述了坝系规划及坝地利用模式、淤地坝的经济效益和坝系的减水减沙效益。有关建坝的设计标准、建坝密度和投资回收年限等几个主要问题也予以讨论。

Silt-trap dams are effective measures for controling soil and water loss and constructing high yield farmland in loess hilly-gullied area of the north part of Shaanxi. the dam systems planning, the model of dam and land use economic benefits,and reducing runoff and sediment yield were discussed in this papers. And some problems of dam design standard, density, return years on investment were analysed.