| 刊名 | Asian Agricultural Research |
| 作者 | Jinyan WANG,Yongting WANG |
| 作者单位 | 1. School of Architectural Engineering and Spatial Informatics, Shandong University of Technology, Zibo 255000, China; 2. School of Tourism, Taishan University, Taian 271000, China |
| DOI | 10.19601/j.cnki.issn1943-9903.2026.05.003 |
| 年份 | 2026 |
| 刊期 | 5 |
| 页码 | 19-22 |
| 关键词 | Yimeng Old Revolutionary Base, Land use, Urban expansion, GIS, Spatio-temporal evolution |
| 摘要 | [Objectives] To make a systematic analysis was conducted on the spatiotemporal evolution characteristics of urban land expansion in the region. [Methods] Utilizing land use data from five temporal points (1980, 1990, 2000, 2010, and 2018), the study applied expansion speed, expansion intensity index, and fractal dimension model for analysis. [Results] Regarding expansion speed, the period from 1980 to 2000 represented a phase of low-speed expansion, followed by a rapid expansion phase from 2000 to 2010. Expansion speed subsequently moderated from 2010 to 2018, marking a transition to a medium-speed expansion phase. Spatially, the expansion of Linyi urban district was most pronounced, displaying contiguous sprawl centered on the old urban core. Local expansion patterns were identified as belonging to three types: strip-like, sprawling, and leapfrog development. An analysis of land use conversion revealed that approximately 62.93% of the newly expanded urban land was derived from cultivated land, with industrial/mining/residential land and grassland representing the secondary sources. [Conclusions] Urban expansion in the study area demonstrates an evolutionary trend characterized by initial rapidity followed by stabilization, and the overall spatial structure remains relatively intensive. |
