摘要
为达到城市建设中的合理规划,研究地理环境差异对城市内涝灾害发生的影响。以武汉地区为研究对象,对特定研究区域内地理环境数据展开采集。利用采集到的数据分析地表径流系数。引入景观格局指数,计算蔓延度指数、香农多样性指数、景观破碎度指数和斑块聚集度指数,评价该地区实际地理差异情况,根据评价结果划分土地利用类别。分析4类土地利用类型的城市内涝点密度的分布情况,证明地理环境差异影响着城市内涝灾害,不同土地利用类型对城市内涝灾害的影响严重程度为:建筑区域>绿地区域>其他区域>水体区域。
To achieve reasonable planning in urban construction,study the impact of geographical environment differences on the occurrence of urban waterlogging disasters.Taking the Wuhan region as the research object,collect geographical environmental data within its specific research area.Analyze the surface runoff coefficient using the collected data.The landscape pattern index was introduced to calculate the spread index,Shannon Diversity index,landscape fragmentation index and patch aggregation index,and evaluate the actual geographical differences in the region.Divide land use categories based on evaluation results.Analyze the distribution of urban waterlogging point density for four types of land use,and prove that geographical environment differences affect urban waterlogging disasters.The severity of the impact of different land use types on urban waterlogging disasters is:building areas>green areas>other areas>water bodies.
作者
覃宗涛
奉斌
黄桂健
何双江
Qin Zongtao;Feng Bin;Huang Guijian;He Shuangjiang(Guangxi Power Grid co.,ltd.Guilin Power Supply Bureau,Guilin 541002,China;Guangxi Power Grid Co.,Ltd,Nanning 530022,China;Guangxi power grid co.,ltd.Guilin Lingui power supply bureau,Guilin 541100,China;Guangxi power grid co.,ltd.Guilin Yangshuo power supply bureau,Guilin 541900,China)
出处
《环境科学与管理》
CAS
2024年第9期32-36,共5页
Environmental Science and Management
基金
广西省电网公司科技项目资助(GXKJXM20220096)。
关键词
景观格局指数
地表径流系数
香农多样性指数
地理环境差异
城市内涝灾害
landscape pattern index
surface runoff coefficient
shannon diversity index
geographical environment differences
urban waterlogging disasters
