In order to explore the spatio-temporal evolution law and driving force of landscape fragmentation in semi-arid ecologically fragile area, the land use data transfer matrix, land use dynamic attitude, moving window method and geographical probe were used to study the landscape fragmentation and its driving force in Jingning County based on the land use data and socio-economic data in 2000 and 2020. The results show that: (1) Cultivated land and grassland are the landscape matrix of Jingning County, and the change among different classes is mainly manifested by the expansion of construction land and grassland. (2) The overall landscape fragmentation level of Jingning County showed an increasing trend from 2000 to 2020; The change was most obvious in the middle of the county, with new patches forming in some areas and the degree of fragmentation decreasing; The degree of fragmentation increased in areas close to towns and water systems. (3) Among the driving factors, GDP has the strongest explanatory power for the spatial differentiation of landscape fragmentation; Social and economic activities have a direct impact on the change of landscape types; The research results can provide scientific basis and methods for ecological protection and sustainable development in semi-arid ecologically fragile areas.

Jiaming Wang. Spatiotemporal evolution and driving force of landscape fragmentation in semi-arid ecologically fragile region: A case study of Jingning County. Academic Journal of Environment & Earth Science (2024), Vol. 6, Issue 3: 42-50. https://doi.org/10.25236/AJEE.2024.060306.

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