Spatiotemporal Evolution of Construction Land Expansion in the Central Yunnan Urban Agglomeration from 2010 to 2020

Journal: Architecture Engineering and Science DOI: 10.32629/aes.v6i1.3755

Hengxin Chi

Faculty of Geography, Yunnan Normal University, Kunming, Yunnan, China

Abstract

Based on the land use data of the Central Yunnan Urban Agglomeration (CYUA) for the years 2010, 2015, and 2020, the temporal and spatial characteristics of urban construction land expansion, including its stages, agglomeration, and direction, were analyzed. The results indicate that: (1) In terms of expansion rate and intensity: Between 2010 and 2020, the rate of construction land expansion in the CYUA showed a trend of "first increasing and then decreasing," while the expansion intensity gradually declined. Overall, the CYUA is a slowly expanding urban agglomeration, but there are significant differences in expansion intensity across different regions. (2) In terms of expansion patterns: The overall pattern is a coexistence of sprawl and infill, characterized by continuous infill within the cities and outward sprawl.

Keywords

central Yunnan Urban Agglomeration (CYUA), construction land expansion, spatiotemporal characteristics, influencing factors

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