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为定量描述小水库和小塘坝等人造水利工程对流域产汇流过程的影响,以白山流域为例,引入自由虚拟水库的概念,建立了改进的三水源新安江模型,并应用于八场洪水的预报模拟,对原始和改进的新安江模型的模拟结果进行对比分析。结果表明,小水库和小塘坝对洪峰流量具有滞后作用,改进的新安江模型对白山流域产汇流的模拟较原始三水源新安江模型效果好。
In order to quantitatively describe the impact of man-made water conservancy projects such as small reservoirs and Xiaotangba on runoff and catchment production in catchment, taking the Baishan catchment as an example, the concept of free virtual reservoirs is introduced to establish an improved Xin’anjiang model of three water sources, which is applied to eight floods The simulation is carried out and the simulation results of the original and improved Xin’anjiang model are compared and analyzed. The results show that the small reservoirs and Xiaotangba lags behind the flood peak flow. The improved Xin’anjiang model is more effective than the original Sankuang Xin’anjiang model.