植被对城市水文平衡的影响研究
Study of the Effect of Vegetation on the Hydrological Balance of the City
吴西 1常青1
作者信息
摘要
我国城市化进程的加快改变了原有环境特征,可透水地表面积和植被覆盖减少,不透水地表面积不断增加,导致了洪涝灾害和城市热岛效应等城市生态环境问题.本文以北方某滨海城市典型住宅区为研究对象,以植被作为切入点,运用ArcGIS 10.8和SNAP 9.0.0等软件,基于空间分辨率为30m的归一化植被指数(NDVI),通过数值实验设计,确定最佳的模拟场景,并构建了植被截流模型定量分析城市的水文平衡.研究结果表明,未来应充分考虑土地利用类型、LAI和降雨等因素对城市的影响,进而减少城市径流.本研究旨在为城市水文及规划提供建议和启示.
Abstract
The acceleration of China's urbanization process has changed the original environmental characteristics,with a decrease in permeable surface area and vegetation cover,and an increasing area of impervious surface,leading to urban ecological and environmental problems such as flooding and heat island effect.In this paper,a typical residential area of a coastal city in the north is taken as the research object,and vegetation is used as the entry point.Using software such as ArcGIS 10.8 and SNAP 9.0.0,based on the normalized vegetation index(NDVI)with a spatial resolution of 30m,the optimal simulation scenario is determined through coupled simulation and numerical experimental design,and a vegetation interception model is constructed to quantitatively analyze the hydrological balance of the city.In summary,the effects of land use type,LAI and rainfall on the city should be fully considered in the future,thus reducing urban runoff.This study aims to provide suggestions and insights for urban hydrology and planning.
关键词
植被/城市住宅/截流模型/水文平衡Key words
vegetation/urban housing/interception modeling/hydrologic balance引用本文复制引用
基金项目
教育厅科学研究计划指导项目(B2022009)
出版年
2024
NETL
NSTL
万方数据