%0 Journal Article
%A WU Pei-lin
%A PAN Yue
%A WU Wei-xiong
%A LIANG Xue-wen
%T Application of Numerical Simulation to Calculating Water Demand in Karst Wetland
%D 2023
%R 10.11988/ckyyb.20220722
%J Journal of Yangtze River Scientific Research Institute
%P 30-34
%V 40
%N 10
%X In an attempt to restore the ecology of karst wetlands, numerical simulation was conducted to calculate the water demand of wetland. We employed Mike21 for 2D numerical calculation of water demand and water replenishment scheme of Huixian wetland in the condition of multi-year average water level. By obtaining the correlation of internal water level between Liangfeng Station and Huixian wetland, we identified that the multi-year average water level of Huixian wetland is 148.86 m. Under this water level, the ecological water demand and environmental water demand of the wetland are 3.87×10<sup>6</sup> m<sup>3</sup> and 3.67×10<sup>6</sup> m<sup>3</sup> respectively, resulting in an overall water demand of 3.87×10<sup>6</sup> m<sup>3</sup>. Through analysis of surface water system, we determined the water replenishment route from the Huixian River through the ancient Guiliu Canal at a flow rate of 5 m<sup>3</sup>/s. Simulation results demonstrate that the water surface rate of the wetland remains within the normal range after replenishment.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20220722