人民黄河2025，Vol.47Issue(4)：51-57,7.DOI:10.3969/j.issn.1000-1379.2025.04.009
汾河流域土地利用变化对洪水过程的影响
Impact of Land Use Change on Flood Processes in the Fenhe River Basin
摘要
Abstract
In order to investigate the influence of land use change to the basin flood process,the Fenhe River Basin was chosen as the study area.The SWAT model and the extreme land use scenario analysis method were employed to analyze the effects of land use type changes on the flood process in different periods and scenarios.The results show that a)the mean value of Nash-Sutcliffe Efficiency(ENS)is greater than 0.70 and the mean value of determination coefficient(R2)is greater than 0.65 during the calibrated and validated period,indicating that the SWAT model has good applicability in the Fenhe River Basin.b)Between 2000 and 2020,there is a reduction in the area of cultivated land,grassland,water bodies and unused land,while the area of forested land and built-up land is increased.c)Under the land use in 2000,2010 and 2020,each peak flow and the total flood volume show a slight upward trend.d)Under the arable land scenario,there is an increasing trend in each peak flow and its total flood volume;while under both the woodland and grassland scenarios,there is a decreasing trend.In terms of magnitude of impact,land use type change has a smaller impact on larger flood processes and a larger impact on small and medium flood processes.Therefore,it is necessary to increase the area of forest and grass and vegetation coverage,promote water-appropriate plant-ing,and avoid high-water-consuming vegetation in areas with high incidence of flood disasters and serious soil erosion,so as to improve the ability of flood control,flood resistance,disaster prevention and mitigation in Fenhe River Basin,and promote ecological restoration and high-quality development in Fenhe River Basin.关键词
土地利用/SWAT模型/洪峰流量/洪量/汾河流域Key words
land use/SWAT model/flood flow/flood volume/Fenhe River Basin分类
水利科学引用本文复制引用
梁纪尧,郭青霞..汾河流域土地利用变化对洪水过程的影响[J].人民黄河,2025,47(4):51-57,7.基金项目
山西省回国留学人员科研教研资助项目(2022-111) （2022-111）
