济南市植被覆盖度景观空间格局研究

Analysis onLandscape Spatial Pattern Based on Vegetation Coveragein Jinan City

指出了快速城市化进程使得济南市景观空间格局发生巨大变化,植被覆盖度为分析景观空间格局提供了方法和支持。利用2015年6月济南市Landsat8遥感影像,反演得出植被覆盖度等级,继而运算得出景观指数,分析了济南市2015年景观格局。研究表明:中植被覆盖等级景观斑块所占比例最大,次高植被覆盖斑块数量最大,其余植被覆盖景观类型所占比例由高到低依次为次低植被覆盖、高植被覆盖、低植被覆盖;分析景观指数发现景观中斑块镶嵌体几何形状复杂性大,各等级相对平均没有形成主导,分布零散不均匀没有较大聚类,零散程度不高。

The rapid urbanization process bringsa great change of landscape spatial pattern in Jinan, and the vegetation coverage provides methods and support to analyze landscape spatial pattern. In this article, the authoruses the Land- sat8 remote sensing image of Jinan city in June of 2015 to get the degree of vegetation coverage, and then analyzes the landscape index of Jinan city in 2015. The article comes to the conclusion that the landscape patches of the middlelev- el＇s vegetation coverage account for the largest proportion while the quantity of patches of secondary levels of vegeta- tion coverageis the largest, The proportion of other types of vegetation landscape from high to low follows the se- quence of lower vegetation coverage, high vegetation coverage andlow vegetation coverage; Through the analysis of landscape index, the article indicates that thegeometrie shape in landscape patches is of great complexity andthat of the different levels are average, which don＇t have a dominant type. The geometric shapes are unevenly scattered and have no clustering, in which the degree ofscattering is not high.