Analysis of the Evolution of Landscape Pattern of Land Use：Taking Shibing Karst and Libo-Huanjiang Karst as an Example

Abstract

This study takes the Shibing Karst and Libo-Huanjiang Karst as research objects, based on land use data from 2000 to 2020, combined with landscape pattern index, land use dynamic attitude, and transfer matrix method, to analyze the transformation characteristics and spatiotemporal evolution patterns of landscape patterns in these two karst regions. The results show that forest land and farmland are the dominant landscape types in the two study areas. Spatially, the high-value areas of aggregation and connectivity indices in the Shibing Karst are concentrated in the central region, while the high-value areas of diversity and shape complexity indices are located in the northern and southeastern regions. In the Libo-Huanjiang Karst, the high-value areas of aggregation and connectivity indices are distributed in the eastern region, and the low-value areas are located in the central region, which gradually shifted to the central region after 2010. The high-value areas of diversity indices are concentrated in the central, western, and northern regions. This study reveals the spatiotemporal evolution characteristics of landscape patterns in typical karst World Heritage sites in southern China from 2000 to 2020, providing a scientific basis for optimizing the landscape patterns of karst World Heritage.