水科学进展2025，Vol.36Issue(4)：646-656,11.DOI:10.14042/j.cnki.32.1309.2025.04.009
考虑峰丛洼地内涝滞洪的分布式岩溶水文模型
A distributed karst hydrological model incorporating flooding detention in peak-cluster depressions
摘要
Abstract
Flooding detention in peak-cluster depressions is a key component of the hydrological cycle in karst basins.To address the limitations of existing hydrological models in accurately representing this process,this study proposes a simulation method based on the water balance principle.A distributed karst Xin'anjiang hydrological model incorporating flooding detention in peak-cluster depressions(DK-XAJ-DF)is developed.Using the Diaojiang River basin as a representative study area,the model simulates the flooding detention volume in the Longtou peak-cluster depression and the streamflow processes at the Hekou and Malong hydrological stations.Results indicate that the hourly simulation of flooding detention volume in the Longtou depression achieves a determination coefficient and relative total error of 0.90 and 0.77%,respectively.During the validation period,the hourly simulation of streamflow yields determination coefficients of 0.85 and 0.89 for the Hekou and Malong stations,respectively,with corresponding total errors of 3.0%and-4.4%.Compared with the original model,the modified DK-XAJ-DF model improves the qualification rates of flood peak discharge and peak timing at the Malong station from 65%to 70%and from 70%to 80%,respectively.By explicitly quantifying the flooding detention effect,the DK-XAJ-DF model enhances simulation accuracy of flood simulation in karst areas.关键词
洪水预报/内涝滞洪/分布式岩溶水文模型/岩溶区/峰丛洼地Key words
flood forecasting/flooding detention/distributed karst hydrological model/karst areas/peak-cluster depression分类
建筑与水利引用本文复制引用
陈立华,杨文哲,陈航,黄文举..考虑峰丛洼地内涝滞洪的分布式岩溶水文模型[J].水科学进展,2025,36(4):646-656,11.基金项目
国家自然科学基金项目(52439002 （）
52179010)The study is financially supported by the National Natural Science Foundation of China(No.52439002 （）
No.52179010). （）
