Evolution of Landscape Pattern and Analysis of Driving Forces in Lingui District,Guilin,China
The study of landscape pattern evolution is an important means of urban sustainable development research.It can reveal the dynamic changes of landscape development and control the scale between urban development and ecological protection.In this paper,the landscape pattern change and its driving sub-factors in Lingui District of Guilin City for 20 years were analyzed based on the landscape index method and binary logistic regression analysis method and some suggestions were put forward.The results showed that the urbanization level of Lingui District had been steadily improved from 2000 to 2020,and the urbanization process was the fastest between 2015 and 2020.Although the proportion of construction land was not large,its change rate was the largest among all land types,from 1.94％in 2000 to 3.64％in 2020,with a net increase of 0.88 times.This was the result of rapid urbanization in Lingui District.Urbanization had caused a certain tendency of landscape fragmentation,but the overall structure of the landscape had changed little,and the overall trend was stable.The distribution of various types in Lingui District was clustered,and there were giant patches in forest land and cultivated land.Forest land was mainly distributed in the mountains on the north and south sides.Cultivated land,grassland,construction land and water area were concentrated in the plain area centered on Lingui Town.The new construction land was concentrated in Lingui Town.A total of 15 driving factors of natural factors and human factors were selected,and all the driving factors were assigned to grids.Binary logistic regression analysis was carried out after random sampling using ArcGIS10.7.The analysis results showed that the landscape pattern change in Lingui District was affected by natural conditions,overall planning of land use,urban development policies,agricultural production activities,urbanization level improvement and other factors.
国家科技期刊平台
NSTL
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