鄱阳湖流域植被覆盖与水域面积遥感监测方法研究

Study on Remote Sensing Monitoring Method of Vegetation Cover and Water Area in Poyang Lake Basin

长期的人类生产开发活动导致湖泊面积逐年收缩、容积减小、环境污染等问题日益严重。因此,利用遥感手段对鄱阳湖水域面积和植被覆盖进行提取,分析不同遥感监测方法的差异。采用了归一化植被指数计算植被覆盖度和利用决策树分类分析植被覆盖度两种方法。通过对比分析,得出一种更加合理的监测鄱阳湖水域面积和植被变化的方法。结果表明,该项成果在鄱阳湖生态环境治理过程中针对不同情况相应采取可行的方法进行分析。

Long-term human production and development activities have led to the shrinking of lake area year by year,the reduction of volume,environmental pollution and other serious problems.Therefore,the water area and vegetation cover of Poyang Lake were extracted by remote sensing,and the differences of different remote sensing monitoring methods were analyzed.Two methods were used to calculate FVC by normalized VEGETATION index(NDVI)and to analyze FVC by decision tree classification.Through comparative analysis,a more reasonable monitoring method of poyang Lake water area and vegetation change was obtained.The results show that the results can be used to analyze the ecological environment of Poyang Lake in different situations.