刘海,黄跃飞,郑粮,王敏

• 1:湖北大学资源环境学院
• 2:武汉大学遥感信息工程学院
• 3:江西省基础地理信息中心

摘要(Abstract)：

针对鄱阳湖生态经济区成立后,国家加大区域生态保护力度,区域植被覆盖度发生变化的问题,该文采用像元二分法估算植被覆盖度,并分析其在生态经济区成立前后变化特征。结果表明:鄱阳湖生态经济区植被覆盖情况较好,中高植被覆盖度和高植被覆盖度区域面积所占比例较高。生态经济区成立前后,植被覆盖变化呈现差异,成立之前(1995—2010年)植被生长发生负向转移,退化现象较为严重,发生退化的区域主要分布在鄱阳湖周边和南部;成立之后(2010—2015年)植被生长发生正向转移,在省会和城市周围呈现退化趋势,其他区域呈现增长趋势。农业耕作效率和林地资源保护是生态经济区成立前后植被覆盖变化差异的主要原因。

关键词(KeyWords)： Landsat NDVI;鄱阳湖生态经济区;植被覆盖度;像元二分模型

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2018YFC1506500);; 2015测绘地理信息公益性行业科研专项项目(201512026);; 区域开发与环境响应湖北省重点实验室开放研究基金项目(2018B(003))

作者(Author): 刘海,黄跃飞,郑粮,王敏

DOI: 10.16251/j.cnki.1009-2307.2020.04.023

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