title: [Regulation effects of reverse-slope level terrace on the runoff and sediment yield in sloping farmland].
abstract: A dynamic monitoring on the rainfall-runoff process and the surface runoff and sediment yield in a sloping farmland was conducted at a natural rainfall runoff plot in the watershed of Jianshan River, the first tributary of Fuxian Lake, Chengjiang, aimed to study the regulation effects of reverse-slope level terrace on the runoff and sediment yield in red soil sloping farmlands of Yunnan. The regulation rates of runoff and sediment yield by the reverse-slope level terrace were 49.5%-87.7% and 56.7%-96.1%, averagely 65.3% and 80.7%, respectively, showing that the regulation effects of reverse-slope level terrace on the runoff and sediment yield, especially the latter in sloping farmland were prominent. The variation coefficients of the test parameters for undisturbed sloping farmland and reverse-slope level terrace were in the order of sediment yield > runoff > rainfall. Comparing with undisturbed sloping farmland, reverse-slope level terrace had smaller surface runoff and smaller relative deviation degree of sediment yield, demonstrating its remarkable effect in controlling runoff and sediment yield in sloping farmland.
authors.affiliation: Faculty of Environment Science and Engineering, Southwest Forestry University, Kunming 650224, China. j.wangping@qq.com
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.forename: Ke-Qin
authors.initials: KQ
authors.lastname: Wang
authors.forename: Tai-Xing
authors.initials: TX
authors.lastname: Li
authors.forename: Yun-Jiao
authors.initials: YJ
authors.lastname: Li
mesh_terms: D002681:China; D003247:Conservation of Natural Resources; D018556:Crops, Agricultural / Q000254:growth & development*; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis; D011891:Rain; D012987:Soil; D014872:Water Movements
chemical_list: D012987:Soil