城市发展对高原湖盆区极端降水的影响  

Influence of Urban Development on Extreme Precipitation in Plateau Lake Basin

作　　者：李宝芬[1] 李晓鹏 曹一梅[1] 金卓 LI Baofen;LI Xiaopeng;CAO Yimei;JIN Zhuo(Kunming Branch,Hydrology and Water Resources Bureau of Yunnan,Kunming 650032,China;Kunming Meteorological Bureau,Kunming 650034,China)

机构地区：[1]云南省水文水资源局昆明分局,云南昆明650032 [2]昆明市气象局,云南昆明650034

出　　处：《人民珠江》2023年第9期96-103,共8页Pearl River

基　　金：国家自然科学基金重点项目(91547205)。

摘　　要：研究城市发展对湖盆区极端降水的影响,对于城市防洪减灾、预报预警能力提升和应急能力建设,完善“四预”工作,应对极端降水内涝灾害风险,具有重要的现实意义。以云南高原盆地城市昆明为例,采用数理统计方法,分析城市发展对湖盆区中心城区、盆地边缘、城市外围山丘区极端降水指数的影响,结果表明:城市发展对湖盆区、盆地边缘、盆地外围山丘区各项极端降水指数均有不同程度影响,其中对盆地边缘影响最强,对山丘区影响最弱,湖盆区影响居中;因受地形、城市热岛效应影响,城市发展还造成湖盆区、盆地边缘、山丘区各区域极端降水指数多年线性趋势增减幅度具有不均一性。Studying the influence of urban development on extreme precipitation in the lake basin region is of practical significance for urban flood control and disaster reduction,forecasting and early warning capability increase and emergency response capacity building,“four pres”improvement,and risk tackling of extreme precipitation and waterlogging disasters.Taking Kunming,a city in the Yunnan Plateau Basin,as an example,this paper adopts mathematical statistical methods to analyze the effect of urban development on the extreme precipitation index in the central urban area of the lake basin,the basin edges,and peripheral hilly areas of the city.The results show that urban development exerts different degrees of influence on various extreme precipitation indexes in lake basin areas,basin edges,and peripheral hilly areas of the basin,with the strongest,weakest,and middle effects on the basin edges,hilly areas,and lake basin areas respectively.Due to topography and the urban heat island effect,urban development also causes uneven increase and decrease in the extreme precipitation index in various areas such as lake basin areas,basin edges,and hilly areas.

关 键 词：极端降水 高原湖盆区 城市发展 影响 

分 类 号：TV125[水利工程—水文学及水资源]