首页|期刊导航|中国地球化学学报（英文版）|Study on rain-runoff process in the peripheral mountainous area of tne Sichuan Basin
中国地球化学学报（英文版）2008，Vol.27Issue(2)：183-188,6.
Study on rain-runoff process in the peripheral mountainous area of tne Sichuan Basin
Study on rain-runoff process in the peripheral mountainous area of tne Sichuan Basin
摘要
Abstract
Studies on rain.runoff process in the peripheral mountainous area of the Sichuan Basin,which is re-garded as a key ecological shelter,will contribute to flood control and environmental protection for the Upper Yang-tze River Basin.In two typical catchments--the Fujiang River Catchment and the Wujiang River Catchment,rainfall simulations have been conducted to study the rain-runoff processes of yellow soil and limestone soil in three types of land use-forestland.farmland and grassland.Results showed that(1)within the same rainfall process,overland flow occurs first on farmland,then on grassland,and finally on forestland;(2)soil surface coverage has a great im-pact on the occurrence and amount of overland flow.The runoff amount Can increase 2-4 times after the coverage iS removed;(3)the infiltration before the occurrence of overland flow will decrease because of higher gravel contents of soil.but it takes no effect on infiltration once,overland flow becomes stable;(4)the runoff coefficient of the lime-stone soil forestland iS greater than that of the yellow soil forest land,but less than that of the farmland;(5)threeempirical infiltration models,including Horton'model,Kostiakov'model,and modified Kostiakov'model,were compared by using the observed results under rainfall simulation.The results showed that the Kostiakov'model per-formed better than both the Horton'model and modified Kostiakov model.According to the results of this research,the Kostiakov's model Can be used to simulate rainfall infiltration when water erosion is modeled in the peripheral mountainous area of the Sichuan Basin.关键词
peripheral mountainous area/Sichuan basin/rainfall simulation/runoff/infiltrationKey words
peripheral mountainous area/Sichuan basin/rainfall simulation/runoff/infiltration分类
天文与地球科学引用本文复制引用
FU Bin,WANG Yu-kuan,REN Yi,LIU Cheng,XU Pei..Study on rain-runoff process in the peripheral mountainous area of tne Sichuan Basin[J].中国地球化学学报（英文版）,2008,27(2):183-188,6.基金项目
This research was granted jointly by the National Natural Science Foundation of China(40771123)and the National Program on Key Basic Research Projects(Grant2007CB407206). （40771123）
