基于遥感分析葫芦岛地区植被覆盖动态变化

Dynamic Change of Vegetation Cover in Huludao Area Based on Remote Sensing

摘要: 植被覆盖度是研究一个地区植被生长状态的重要指标，在我们对于区域生态系统的研究中起着重要作用。本文介绍了遥感和植被覆盖度之间的关系和遥感对于研究植被覆盖度的应用。葫芦岛市辽宁省内的地级市，地处辽宁省的西部沿海地区，其中心位置位于120˚38'E、40˚56'N，东接锦州，西临山海关，北朝阳市，南朝渤海，构成了渤海经济圈，所以研究葫芦岛地区的植被覆盖度有利于当地的环境保护及生态建设。本文选取了葫芦岛市2001年和2018年Landsat TM/OLI影像和葫芦岛市县级行政界线，利用ENVI5.3和ArcMap10.1等基础软件工具求植被指数NDVI和植被覆盖度，得出葫芦岛市2001年~2018年植被覆盖度的时空变化特点并分析引起发生其变化的主要原因。本文的研究结论为葫芦岛研究葫芦岛市的环境关系和当地可持续发展提供了数据来源。

Abstract: Vegetation coverage is an important indicator of vegetation growth in a region, which plays an important role in the study of regional ecosystem. This paper introduces the relationship between remote sensing and vegetation coverage and the application of remote sensing to the study of vegetation coverage. Huludao City, a prefecture level city in Liaoning Province, is located in the western coastal area of Liaoning Province. Its center is located at 120˚38'E, 40˚56'N, Jinzhou is in the east, mountain customs are in the west, Chaoyang City is in the north and Bohai Sea is in the south, forming the Bohai economic circle. Therefore, the study of vegetation coverage in Huludao area is conducive to local environmental protection and ecological construction. In this paper, the Landsat TM/oli image and county administrative boundary of Huludao City in 2001 and 2018 are selected, and the NDVI and vegetation coverage are calculated by using ENVI5.3 and Arcmap10.1 and other basic software tools, and the spatial-temporal change characteristics of vegetation coverage in Huludao City in 2001~2018 are obtained, and the main reasons for the change are analyzed. The conclusion of this paper provides a data source for Huludao to study the environmental relationship and local sustainable development.