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首页> 外文会议>Advanced materials in microwaves and optics >Temporal and Spatial Variation of Vegetation Coverage in Beijing- Tianjin-Hebei Metropolis Circle with MODIS Vegetation Indices Data Product
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Temporal and Spatial Variation of Vegetation Coverage in Beijing- Tianjin-Hebei Metropolis Circle with MODIS Vegetation Indices Data Product

机译：基于MODIS植被指数数据产品的京津冀都市圈植被覆盖时空变化。

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摘要

This paper describes the temporal and spatial variation of vegetation coverage in Beijing-Tianjin-Hebei Metropolis circle using lkm MODIS vegetation indices data product (MOD 13A3), and the main satellite data used in this study were MODIS NDVI and EVI data, city borderline data and DEM. After processing data with ENVI software, the time- series maps of the NDVI and EVI were drawn by ArcMap software, and the curve charts were formed by Excel. By using the temperature, rainfall data and vegetation distribution data, the spatial and temporal variation of the VI was analyzed. The results shows that the MODIS Vis varies with season, and the curves of their monthly mean values are downwards opening quadratic parabolas, with the maximum appeared in June and July. The spatial distribution of MODIS vegetation indices is positively correlated with vegetation coverage, and appeared regional characteristics. The vegetation coverage of Beijing- Tianjin-Hebei Metropolis circle has obviously increased during the past years, due to the ecological project operated in the research region.
机译：本文利用lkm MODIS植被指数数据产品（MOD 13A3）描述了京津冀大都市圈植被覆盖的时空变化，主要卫星数据为MODIS NDVI和EVI数据，城市边界数据。和DEM。用ENVI软件处理数据后，用ArcMap软件绘制NDVI和EVI的时间序列图，并用Excel绘制曲线图。利用温度，降雨数据和植被分布数据，分析了VI的时空变化。结果表明，MODIS Vis随季节变化，其月平均值曲线呈向下开放的二次抛物线，最大值出现在6月和7月。 MODIS植被指数的空间分布与植被覆盖度呈正相关，并表现出区域特征。由于该研究区的生态工程，京津冀大都市圈的植被覆盖率在过去几年中明显增加。

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  • 来源
  • 会议地点 Bangkok(TH);Bangkok(TH)
  • 作者

    Li Yaqing; Li Xiaojuan; Lian Jian; Wang Ronghua;

  • 作者单位

    Key Laboratory of 3D Information Acquisition and Application of Ministry of Education Capital Normal University Beijing, China 100048;

    Key Laboratory of 3D Information Acquisition and Application of Ministry of Education Capital Normal University Beijing, China 100048;

    Key Laboratory of 3D Information Acquisition and Application of Ministry of Education Capital Normal University Beijing, China 100048;

    Graduate School for International Development and Cooperation, Hiroshima University 1-5-1 Kaaamivama. Hiaashi-Hiroshima. JAPAN 739-8529;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料一般性问题;
  • 关键词

    MODIS; vegetation indices; beijing-tianjin- hebei metropolis circle; vegetation coverage;

    机译：MODIS;植被指数；北京-天津-河北大都市圈；植被覆盖;
  • 入库时间 2022-08-26 14:23:26

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