EFFECTS OF HUMAN ACTIVITIES ON HYDROLOGY AND FLUVIAL PROCESS OF BOLUO REACH OF THE EAST RIVER
In last 20 years, the hydrodynamic and fluvial processes of the Boluo reach have been greatly changed by the human activities such as the large-scale sand excavation from riverbed,the construction of reservoirs. On the one hand, the working of the reservoirs decreases the mean sediment concentration and the mean sediment discharge and increases the runoff in the dry season.On the other hand, the large-scale sand excavation has the great effects on the fluvial processes include increasing of the channel volume, lowering of the riverbed altitude and deepening of the water depth, which causes severe drop of water level and obvious strengthen of tidal action. Therefore,human activities have become the dominant factor controlling the changes of the hydrodynamic and fluvial processes instead of natural processes.
human activity fluvial process hydrological change sand ezcavation Boluo
Rongyao Ji Yongjun Lu Liqin Zuo
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Science, Nanjing Hydraul Nanjing Hydraulic Research Institute, Nanjing, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
895-900
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）