基于徐州市主城区的景观格局时空变化研究

Study on Temporal and Spatial Changes of Landscape PatternBased on the Main Urban Area of Xuzhou

对城市景观格局进行时空变化分析,有助于为我国城市化合理布局、稳定发展提供重要的参考。本文以徐州市主城区为研究区,选取2003、2013和2018年3期6景Landsat ETM+/OLI遥感影像数据,结合景观生态学理论以及遥感技术和地理信息系统技术,以ENVI、ArcGIS以及FRAGSTATS软件为平台,通过监督分类获取研究区景观格局信息,结合景观格局指数分析法以及转移矩阵对徐州市主城区景观格局的时空变化进行分析研究,为徐州市城市规划和生态环境建设提供参考。研究表明,2003—2018年间徐州市主城区内城市景观格局一方面趋于同质化,其他景观同质化变为建设用地;一方面趋于破碎化,景观格局整体上离散破碎化程度加深。

The analysis of temporal and spatial changes of urban landscape pattern is helpful to provide important reference for the rational distribution and stable development of urbanization in China.Taking the main urban area of Xuzhou as the research area,Landsat ETM+/OLI remote sensing image data of six scenes in 2003,2013 and 2018 were selected.Combined with landscape ecology theory,remote sensing technology and geographic information system technology,ENVI,ArcGIS and FRAGSTATS software were used as the platform.The landscape pattern information of the study area was obtained through supervised classification,and the temporal and spatial changes of landscape pattern in the main urban area of Xuzhou was analyzed by combining the landscape pattern index analysis method and the transfer matrix,so as to provide reference for the urban planning and ecological environment construction of Xuzhou.The results show that from 2003 to 2018,the urban landscape pattern in the main urban area of Xuzhou tends to be homogeneous on the one hand,and other homogeneous landscapes become construction land,on the one hand,the landscape pattern tends to be fragmented.