| This paper obtained land use information for five periods in Anhui Province based on land use cover figures for the years 2000,2005,2010,2015 and 2020.The spatial and temporal characteristics of land use change in Anhui Province between 2000 and2020 were revealed by applying the land use change attitude model,land use cover type transfer matrix and other models.At the same time,according to the geographical fact of the research area and previous studies,the data of 11 related factors,such as population,economy and agriculture,were selected as the driving factors for the spatial and temporal evolution of land use in Anhui Province,and the driving factors affecting land use change in Anhui Province were analyzed by principal component analysis,and the main conclusions were reached:(1)Although the land use types in Anhui Province have changed greatly from2000 to 2020,the proportion of total land use has changed little.The area of cultivated land has always been the largest.Even though its area is decreasing year by year,the area of cultivated land still accounts for more than 55.3%of the area of Anhui Province by 2020,followed by forest land and construction land,accounting for 22.9%and10.5%of the total area respectively.(2)Over the past 20 years,the land use in Anhui Province has changed markedly.Overall,the biggest changes in land use were in cultivated land,construction land and woodland.Between 2000 and 2020,the area of arable land changed the most,followed by woodland and construction land.11181.30 km~2and 5202.30km~2were transferred from cultivated land to construction land and woodland,respectively;Transfer of8117.82 km~2of construction land to arable land;Woodland converts 5103.07 km~2to arable land and 2467.02 km~2to grasslands.As far as land use is concerned,farmland has been encroached upon in large numbers,the area of land used for construction has increased significantly,the area of woodland has decreased,the area of grassland has risen before declining,and the area of water has risen,indicating that the land use in the study area has changed since the implementation of the policy on conversion of farmland to forest,land reclamation and ecological environment construction.(3)There were significant regional differences in land use transfer in Anhui province between 2000 and 2020.Overall,land use transfer was concentrated in the central and northern regions.According to superposition analysis and statistical analysis,the conversion of land types in the study area is mainly between cultivated land and construction land.And the mutual transformation of cultivated land,grassland and woodland in some southern Anhui region.(4)Qualitative analysis of the drivers of land use change in the study area was performed by qualitatively describing the land use drivers in the study area for the period 2000-2020 and using SPSS 22.0 software for principal component analysis and other relevant analyses.The research shows that the influence of human factors on land use cover change is increasing gradually,and the changes of social and economic development,population growth and industrial structure are the main factors affecting their land use structure change.Figure 13 table 14 reference 108... |
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