基于GIS和RS的郑州黄河湿地生态健康评价

Assessment of the Ecological Health of the Yellow River Wetland in Zhengzhou by GIS and RS Techniques

基于遥感影像数据、基础地理数据和湿地监测数据,以郑州黄河湿地为研究区,选取归一化植被指数、景观多样性指数、景观形状指数、斑块密度指数、聚合度指数、平均弹性度、水体面积等7个评价指标,建立生态系统健康评价模型,对其健康状况进行评价。结果表明,郑州黄河湿地生态健康状况中等,湿地格局基本完整并具有一定的恢复能力。

Taking the Yellow River wetland in Zhengzhou as the research region,we extracted wetland landscape types based on remote sensing data,geographic data and wetland monitoring data. Selecting NDVI,LDI,LSI,PDI,PI,AE and WA,the ecological health assessment model was established and health status was assessed. The results showed that health status of the Yellow River in Zhengzhou was moderately level and has completely basic pattern and recovery capabilities.