FENG Yingying,HU Maochuan,TAN Xuezhi,et al.The reconstruction and spatial-temporal analysis of historical land use based on 1∶50 000 topographic map —A case study of the Mei River Basin[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):104-112.
FENG Yingying,HU Maochuan,TAN Xuezhi,et al.The reconstruction and spatial-temporal analysis of historical land use based on 1∶50 000 topographic map —A case study of the Mei River Basin[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):104-112.DOI: 10.13471/j.cnki.acta.snus.2022D031.
The reconstruction and spatial-temporal analysis of historical land use based on 1∶50 000 topographic map—A case study of the Mei River Basin
The reconstruction of historical land use has essential significance for long-term land cover change research. In an effort to better clarify the historical land use evolution, this study developed a highly automated historical map reconstruction technique based on a 1∶50 000 military topographic map of 1930. Specifically, we integrated alignment, calibration, reconstruction, and correction for reconstructing the land use pattern of the Mei River Basin. The study adopted the land use transition matrix, landscape pattern index, and moving window method for analyzing spatial-temporal changes in watershed landscape patterns based on the land use data in 1930,1980, and 2020. The results showed that military topographic maps could be applied to related research on land use change after the acceptable registration, error control, and digitization of the historical map reconstruction model. With the urbanization and the construction of large-scale water conservancy projects, the proportion of land use types constantly changed, while the transfer and exchange of cultivated land, forest and grassland, and urban-rural land were quite prominent between 1930 and 2020. At the class level, forest and grassland were the dominant landscape but the urban-rural land developed intensively under the influence of human activities. In terms of the landscape level, land use distribution had gradually developed equally and the fragmentation and heterogeneity had increased significantly in the downstream areas. This study provided a reference for the reconstruction of historical and geographical elements, and had great significance for the land use change and landscape pattern of the Mei River Basin in Guangdong Province.
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