海绵城市建设背景下江苏宿迁市中心城区水面率与内涝关系研究  

Study on the relationship between water body rate and waterlogging in the central urban area of Suqian City of Jiangsu Province under the background of sponge construction

作　　者：夏成亮 王露[2] 许生 邱福琼 宋强 XIA Chengliang;WANG Lu;XU Sheng;QIU Fuqiong;SONG Qiang(Suqian Water Survey,Design and Reserach Institute Co.,Ltd,Suqian 223800;Suqian Branch of Jiangsu Province Hydrological and Water Resources Investigation Bureau,Suqian 223800)

机构地区：[1]宿迁市水务勘测设计研究有限公司,宿迁223800 [2]江苏省水文水资源勘测局宿迁分局,宿迁223800

出　　处：《中国防汛抗旱》2024年第8期6-10,21,共6页China Flood & Drought Management

摘　　要：水域作为城市生态系统的重要组成部分,是系统化全域推进海绵城市建设的重要内容。为了探究城市水面率与内涝风险的关系,通过GPS-RTK和网络RTK遥感技术对江苏宿迁市中心城区2023年水域面积进行动态监测,分析影响水面率变化的因素,并通过建立网格分区及不同排水分区,将城市易涝点与水面率结合,研究城市内涝与水面率之间的关系。结果表明:2023年12月宿迁市中心城区水域面积为31.824 km^(2),较2022年增加0.047%。引起水面率变化的原因中,人为因素占主导地位,海绵城市建设中水系连通、生态修复等措施是提升水面率的重要手段。水面率与内涝点分析表明水面率是影响城市内涝的因素之一,在水面率较低的区域更容易发生内涝。研究成果对系统化全域推进海绵城市建设具有重要意义。As an important part of the urban ecosystem,water bodies is an crucial part of the systematic and whole-area promotion of sponge city construction.In order to explore the relationship between the urban water surface rate and the risk of flooding,the dynamic monitoring of the water body area in the central urban area of Suqian City of Jiangsu province in 2023 was carried out through GPS-RTK and GIS remote sensing technology,to analyse the factors affecting the change of the water body rate,and to study the relationship between urban flooding and the water surface rate by establishing the computing grid zoning as well as the different drainage zoning,combining the urban flood-prone points with the water surface rate.The results show that:The water body area in the central urban region of Suqian city was 31.824 km^(2) in December 2023,which increased by 0.047%compared with 2022.Among the natural and anthropogenic causes of changes in the water body rate,human factors are dominant,and measures such as water systems connectivity and ecological restoration in sponge city construction are important means to enhance the water bady rate.The analysis of waterlogging points and water body rate shows that water body rate is one of the factors affecting urban waterlogging,and waterlogging is more likely to occur in areas with lower water body rate.The research results are of great significance to the systematic and comprehensive promotion of sponge city construction in the whole region.

关 键 词：水面率 海绵城市 遥感 城市内涝 宿迁市中心城区 江苏省 

分 类 号：TU992[建筑科学—市政工程]