摘要
近年来,鄱阳湖枯水期水位连创新低,湖区湿地环境有退化的趋势。为了分析鄱阳湖湿地不同类型土地在不同季节的变化情况,通过收集2003～2009年间60多幅景湖区MODIS、Landsat TM清晰无云遥感图片,对湿地植被变化情况进行了监测分析,提出了湿地植被地类的识别和分类计算方法,计算出2009年各月鄱阳湖区植被面积,首次重点分析了2003～2009年汛期过后的秋冬季(10～12月份)湖区湿地植被多年变化规律,并对湖区11月份植被群落进行了分类和初步识别,分析出各群落的变化趋势及其与水位的关系。
In recent years,the water level of Poyang Lake continues to go down to the lowest value in history in dry season successively and the environment of wetland trends to degrade.In order to analyze the wetland vegetation change in different seasons,through collecting more than 60 clear and cloud-free images of MODIS and Landsat TM remote sensing data from 2003 to 2009,the analysis on wetland vegetation changes is conducted and the method to identify and classify wetland vegetation is presented.The vegetation area of each month in 2009 of the lake area is respectively calculated.Firstly,the analysis focuses on the variation law of wetland vegetation after flood season,autumn and winter（October to December） from 2003 to 2009,also classification and identification of the vegetation around the lake in November is conducted tentatively.The relationship between the change tendency of each community and the water level is analyzed.
出处
《人民长江》
北大核心
2011年第11期60-63,106,共5页
Yangtze River
基金
水利部公益性行业科研专项经费项目(2007SHZ02(1-9))
关键词
秋冬季
地类变化
遥感监测
植被群落识别
湿地植被
鄱阳湖
autumn and winter
land category change
remote sensing
identification of vegetation community
wetland vegetation
Poyang Lake
