郑州市热岛效应及其影响因素研究  

Study on heart island effect and its infuencing facctors in Zhengzhou city

作　　者：李亚龙 乔旭宁[1] 王宇[1] 刘亮 李天驰 LI Yalong;QIAO Xuning;WANG Yu;LIU Liang;LI Tianchi(School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454003,China;School of Oceanography and Environment,Tianjin University of Science and Technology,Tianjin 300457,China)

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454003 [2]天津科技大学海洋与环境学院,天津300457

出　　处：《测绘工程》2023年第5期34-42,共9页Engineering of Surveying and Mapping

基　　金：国家自然科学基金资助项目(41971274);河南省高校科技创新团队支持计划(22IRTSTHN008)。

摘　　要：利用8期Landsat影像,采用单窗算法反演郑州市主城区地表温度,综合分析2001—2021年郑州市热环境变化情况。基于土地覆盖类型数据,利用单因素方差分析法,研究不同土地覆盖类型对应地表温度的差异性,以及不透水面丰度、归一化植被指数与地表温度的关系;对湿地公园建立地表温度缓冲区,研究湿地公园对热岛效应的缓解作用。结果表明,2001—2021年郑州市热岛面积先增加后减少,呈倒U型变化趋势;城市热岛效应受土地利用类型、植被覆盖等因素影响,不同土地覆盖类型对应的地表温度存在显著性差异,地表温度与不透水面丰度呈正相关关系,与归一化植被指数呈负相关关系,湿地公园对热岛效应有明显的缓解作用。Eight Landsat images were used to retrieve the surface temperature of the main urban area of Zhengzhou by the mono-window algorithm,and the changes of thermal environment in Zhengzhou from 2001 to 2021 were comprehensively analyzed.Based on the data of land cover types,one-way analysis of variance was used to study the differences of land surface temperature corresponding to different land cover types,and the relationship between impervious surface abundance,normalized vegetation index and land surface temperature.The land surface temperature buffer zone for wetland park was established to study the mitigation effect of wetland park on heat island effect.The results showed that from 2001 to 2021,the area of heat island in Zhengzhou increased first and then decreased,showing an inverted U-shaped trend.The urban heat island effect is affected by land use type,vegetation cover and other factors,and there are significant differences in land surface temperature corresponding to different land cover types.LST was positively correlated with the abundance of impervious surface,and negatively correlated with the normalized vegetation index.Wetland Park has significantly alleviated the heat island effect.

关 键 词：热岛效应 单窗算法 单因素方差分析 相关性分析 缓冲区分析 郑州市 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]