基于SCS-CN model模型的北京市功能区产流风险分析（英文）

编号 zgly0001583952

文献类型 期刊论文

文献题名 基于SCS-CN model模型的北京市功能区产流风险分析（英文）

作者 姚磊  卫伟  于洋  肖峻  陈利顶 

作者单位 CollegeofGeographyandEnvironment  ShandongNormalUniversity  StateKeyLaboratoryofUrbanandRegionalEcology  ResearchCenterforEco-EnvironmentalSciences  CAS 

母体文献 Journal of Geographical Sciences 

年卷期 2018年05期

年份 2018 

分类号 F127 

关键词 SCS-CNmodel  urbanfunctionzone  spatialcluster  runoffrisk 

文摘内容 Urbanization significantly increases the risk of urban flooding. Therefore, quantitative study of urban rainfall-runoff processes can provide a scientific basis for urban planning and management. In this paper, the built-up region within the Fifth Ring Road of Beijing was selected as the study area. The details of land cover and urban function zones(UFZs) were identified using GIS and RS methods. On this basis, the SCS-CN model was adopted to analyze the rainfall-runoff risk characteristics of the study area. The results showed that:(1) UFZs within different levels of runoff risk varied under different rainfall conditions. The area ratio of the UFZs with high runoff risk increased from 18.90%(for rainfall return period of 1 a) to 54.74%(for period of 100 a). Specifically, urban commercial areas tended to have the highest runoff risk, while urban greening spaces had the lowest.(2) The spatial characteristics of the runoff risks showed an obvious circular distribution. Spatial cluster areas with high runoff risk were mainly concentrated in the center of the study area, while those with low runoff risk were mainly distributed between the fourth and fifth ring roads. The results indicated that the spatial clustering characteristic of urban runoff risk and runoff heterogeneity among different UFZs should be fully considered during urban rainwater management.