城镇化背景下城市土地利用变化对热环境的影响研究——以安徽省合肥市滨湖新区为例

城镇化是衡量区域发展水平的重要指标,热环境是影响人居环境的重要因素。2011—2020年是安徽省合肥市滨湖新区快速增长的时期。本文采用2011年、2014年、2017年、2020年四期Landsat遥感影像为数据源,分析该时间段内合肥滨湖新区的土地利用、热环境的时空变化。结果表明,土地利用变化与城市热环境变化呈显著线性相关;耕地面积随着扩张逐步转变为不透水面;不透水面的用地变化与热环境变化在空间方向上趋势一致。研究结果对快速城镇化发展规划与建设有一定的指导意义。

Urbanization is a crucial indicator for assessing the level of regional development,and the thermal environment is a significant factor influencing the human settlement environment.The period from 2011 to 2020 witnessed rapid growth in Hefei Binhu New Area.Using four phases of Landsat satellite imagery from the years 2011,2014,2017,and 2020 as data sources,this study analyzed the spatiotemporal changes in land use and the thermal environment in Hefei Binhu New Area during this time span.The results indicate a significant linear correlation between changes in land use and urban thermal environment.The cultivated land area gradually transforms into an impermeable surface as it expands.The changes in impermeable surfaces'land use and thermal environment exhibit consistent spatial trends.The research findings provide valuable guidance for the planning and construction of rapid urbanization development.