人民黄河2024，Vol.46Issue(3)：17-21,63,6.DOI:10.3969/j.issn.1000-1379.2024.03.004
基于水箱模型的会仙岩溶湿地睦洞河小流域径流模拟研究
Simulation Study on Runoff in the Small Watershed of Mudong River in Huixian Karst Wetland Based on Tank Model
摘要
Abstract
Influenced by the distribution of karst landforms and karst development,the process of rainfall runoff in karst regions is complicat-ed.Runoff simulation can help identify the main factors influencing runoff in karst areas.In this study,based on the karst landform character-istics of the small watershed of the Mudong River in Huixian Karst Wetland in the Lijiang River basin,parallel staggered time model of doub-le tanks was established and an artificial neural network was built by using Microsoft Excel for parameter optimization.The relative error,the Nash-Sutcliffe efficiency coefficient and the correlation coefficient were used to evaluate the simulation effects during calibration and validation based on the measured discharges in the small watersheds.The mean annual relative error of the regularization rate was 7.5%,the Nash-Sut-cliffe coefficient was 0.63 and the correlation coefficient was 0.72.During the validation period,the mean annual relative error was 10.5%,the Nash-Sutcliffe coefficient was 0.56 and the correlation coefficient was 0.63,indicating that the model was able to achieve good simulation results in the study area.Through the parameter sensitivity analysis of the runoff simulation of the Tank model in the small watershed of Mud-ong River,the results show that the karst geomorphological characteristics such as surface infiltration performance,the existence of karst fast flow and slow flow,and karst base flow mainly affect the runoff distribution and production flow in the karst small watershed.关键词
水箱模型/岩溶湿地/径流/敏感性分析Key words
tank model/karst wetlands/runoff/sensitivity analysis分类
天文与地球科学引用本文复制引用
孔纯正,张红艳,代俊峰,吕玉娟,李子涛,万祖鹏..基于水箱模型的会仙岩溶湿地睦洞河小流域径流模拟研究[J].人民黄河,2024,46(3):17-21,63,6.基金项目
国家自然科学基金资助项目(52269010) （52269010）
广西科技重大专项课题(桂科AA20161004-1) （桂科AA20161004-1）
桂林市科技项目(20220114-2,20190216-2) （20220114-2,20190216-2）
