Spatial and Temporal Gradient Analysis of Landscape Pattern in Central Urban Area of Luoyang City
Taking the central urban area of Luoyang City as the research object,the method of combining landscape index and gradient analysis was adopted.Based on the remote sensing image data of the urban area in recent 15 years,the Luohe River was taken as the center,and GIS software was used for image processing,to build a 3 km interval buffer zone to the north and south sides of the Luohe River,and ana-lyze the spatial-temporal dynamic changes and gradient changes of the landscape pattern in the central urban area of Luoyang.The results showed that with the continuous advancement of urbanization in recent 15 years,the proportion of various types of patch areas had significantly changed,and the landscape pat-tern structure was also constantly changing;the spatial-temporal gradient characteristics of various types of patches differed significantly,and the north and south sides of the Luohe River exhibited different lev-els of characteristics under different urban construction efforts;the landscape pattern was gradually devel-oping towards fragmentation and heterogeneity,and the process of urbanization and human interference were important factors affecting the differences in gradient changes of landscape pattern.
landscape patterngradient analysislandscape indexlandscape fragmentationcentral ur-ban area of Luoyang City
NETL
NSTL
万方数据
