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    基于RS和GIS的郑州市植被覆盖度与地表温度演化研究

    关键词:园林植物;遥感;地表温度反演;植被覆盖度

    Key words:landscape plants; remote sensing; land surface temperature retrieval; vegetation fraction

    摘要:选取了郑州市近年来城市化速度较快、土地利用情况变化较为明显的区域作为研究对象,将2001—2013年多幅Lanadsat5TM、8ETM+遥感影像用于ENVI5.0软件,进行植被覆盖度和地表温度反演的计算,再运用arcgis9.3平台进行分析和数据统计,得出了研究区夏季地表温度变化的趋势,进而研究了地表温度变化和植被覆盖度的耦合关系,分析了2004—2013年研究区土地利用的变化与地表温度变化的联系,对比了绿地和农田的不同热环境影响以及公园绿地的降温效应,最后提出了针对研究区城市发展和绿地建设方面的若干规划建议。

    Abstract:This article chose Zhengzhou city for study object area where the speed of urbanization and land use situation altered obviously and quickly. Some remote sensing images from 2001 to 2013 were employed. Calculation of vegetation fraction and LST (land surface temperature) was based on the software of ENVI 5.0. The trend of summer LST alternation in study area was concluded by using the statistical data from ArcGIS 9.3 software. The coupling relationship of NDVI and LST were studied. The comparing relationship of alteration in land use classified and LST from 2004 to 2013 were analyzed. Some suggestions in urban planning and green land built were put forward in the end.

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