沟道植物坝的水土保持功效  

Effect of Soil and Water Conservation of Vegetation Dam in Ditches

作　　者：拾兵[1] 曹叔尤[2] 李桂芬[3] 毕慈芬[4] 

机构地区：[1]青岛海洋大学工程学院,青岛266071 [2]四川大学水利水电工程学院 [3]中国水利水电科学研究院 [4]黄河上中游管理局

出　　处：《水土保持学报》1999年第S1期15-20,共6页Journal of Soil and Water Conservation

基　　金：国家自然科学基金;中国水利部联合资助重大项目;国家自然科学基金;四川大学高速水力学国家重点实验室开放基金;青岛海洋大学科研起动资金

摘　　要：基于干旱地区沟道浸蚀及泥沙输移的规律，针对植物群体的滞留拦沙作用，开展了这方面的机理研究及室内试验，推导了植物坝前壅水计算迭代公式，求得了植物丛内断面输沙率、建立了坝前沟道冲淤计算的理论模式，取得了计算值与试验值较为吻合的成果。According to the general law of erosion and transportation of ditches sediment in drought region, and in view of the mechanism of vegetation retarding to water and to sediment, the theoretical analysis about them and many indoor experiments are done. An iterative computation method for backwater in the front of channel planting dam and numerical calculation model for sediment deposition in backwater region are founded by means of the section transport rate of bedload in the vegetated bed being derived. Compared model calculating data with experimental ones, they agreed with well.

关 键 词：植物坝 壅水计算 推移质输沙率 冲淤计算 

分 类 号：S157[农业科学—土壤学]