香格里拉中心区景观格局演变研究

Dynamic Changes of Landscape Pattern of Core Area in Shangrila

以香格里拉中心区为例,结合中巴卫星2000年和2009年数据,借助GIS、RS和Fragstat软件,对香格里拉中心区在斑块类型和景观水平两方面进行景观格局变化研究。研究结果表明:10年来,研究区景观格局变化大。斑块类型水平方面,农牧地面积显著减小,但仍占主导地位;城镇、绿地斑块数目增加,面积增大;景观水平方面,斑块总数、密度和面积-周长分维数在增加,蔓延度下降,斑块形状总体上变得更加复杂;香农多样性指数增加,异质性程度在加大。教授、博士。

Using GIS and a spatial pattern analysis software RS and FRAGSTATS,and methodologies of landscape ecology,the paper analyses dynamic changes of landscape pattern both on class and landscape level of core area in Shangrila based on 2000 and 2009 remote sensing imagine of CBERS.The landscape pattern had a great change in study area during last ten years.On class level,the total area of farming land significantly reduced,but it was still the main landscape type.Number of Patches and total area of urban and green space enhanced.On landscape level,the total number of patches,Perimeterarea fractal dimension and patch density increased,but Contagion index slow down,which showed patches become more complex.The Shannon＇s diversity index increased that reflected Landscape heterogeneity strengthens.