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首页> 外文会议>Remote sensing for environmental monitoring, GIS applications, and geology IX >Monitored landscape change of Lake Baiyangdian wetland with dynamic reed area based on remote sensing
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Monitored landscape change of Lake Baiyangdian wetland with dynamic reed area based on remote sensing

机译：基于遥感的芦苇动态区白洋淀湿地景观变化监测

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摘要

Lake Baiyangdian, a largest wetland ecosystem in North China Plain, has dried up on seven occasions since the 1960s. In recent years, more than one billion of cubic meters of water from upstream reservoirs and Yellow river have been transported to the lake to rescue the shrinking wetlands. Since the Lake Baiyangdian was actually composed of 143 small lakes and more than 70 villages with large or small area of cropland, dynamic distribution of aquatic plants in wetland such as reed and associated growth condition of these allowed to monitor the changes of wetland landscape and water quality to support the policy applications of water conveyance and wetland environmental treatment and control. Assisted with ground survey analyses and Landsat TM image, the MODIS 250 m time series Normalized Difference Vegetation Index (NDVI), given its combination of medium spatial and high temporal resolution, were applied to detect the unique rapid growth stage of reed in the spring from adjacent crops such as winter wheat, cotton, and spring maize, of which has a similar phenology in development of leaf area index, and dynamic reed areas were mapped in recent decade. Landscape changes of the wetland were analyzed using maps of reed area and hydrological data.
机译：白洋淀湖是华北平原最大的湿地生态系统，自1960年代以来已经七次枯竭。近年来，来自上游水库和黄河的十亿立方米水已被输送到湖泊中，以拯救不断缩小的湿地。由于白洋淀湖实际上是由143个小湖和70多个大小不同的村庄组成的，因此湿地中水生植物的动态分布（例如芦苇）和相关的生长条件可以监测湿地景观和水的变化。质量支持水运和湿地环境处理与控制的政策应用。借助地面调查分析和Landsat TM影像，结合中等时空分辨率和高时间分辨率，将MODIS 250 m时间序列归一化植被指数（NDVI）应用于从春季开始检测芦苇的独特快速生长阶段。邻近的农作物，例如冬小麦，棉花和春玉米，它们在叶面积指数的发展上具有相似的物候特征，并且在最近十年中绘制了动态芦苇区域。使用芦苇面积图和水文数据分析了湿地的景观变化。

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  • 来源
  • 会议地点 Berlin(DE)
  • 作者

    Zhen Wang; rnLei He; rnShengwei Zhang; rnYuping Lei;

  • 作者单位

    Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology,Chinese Academy of Sciences, Shijiazhuang, 050021, China Graduate University of Chinese Academy of Sciences, Beijing, 10049, China;

    rnCollege of Land Resources and Environment, Jiangxi Agricultural University, 330045, China;

    rnCenter for Agricultural Resources Research, Institute of Genetics and Developmental Biology,Chinese Academy of Sciences, Shijiazhuang, 050021, China Graduate University of Chinese Academy of Sciences, Beijing, 10049, China;

    rnCenter for Agricultural Resources Research, Institute of Genetics and Developmental Biology,Chinese Academy of Sciences, Shijiazhuang, 050021, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境遥感;
  • 关键词

    Reed; wetland; lake; classification; MODIS; landsat;

    机译：芦苇;湿地湖;分类; MODIS;陆地卫星;

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