Author(s): Chen Xing-Wei; Liu Mei-Bing
Linked Author(s):
Keywords: Hydrodynamic characteristic; Tide; Sand mining; Lower reach of MinjiangRiver
Abstract: Based on data extracted from topographic charts and obtained through hydrological and sediment surveys, and the simulations of the one-dimensional hydrodynamic model according to the Saint-Venant equations, the variation of hydrodynamic characteristics in the lower reach of Minjiang River over the last three decades was analyzed. It showed the hydrodynamic characteristics had been changed greatly in the upper part of the lower river. The water levels fell, tidal range increased, the flood duration became longer, and tidal limit and tidal current limits moved upstream. The analysis also revealed that both the construction of Shuikou Reservoir and the activities of sand mining had a significant impact on the riverbed evolution and the variation of hydrodynamic characteristics, and the later one played a more important role.
Year: 2009