Spatial–Temporal Evolution and Driving Force Analysis of Blue–Green Space in the Chengdu–Chongqing Economic Circle, China

Guangshun Zhang, Yi Su, Ziming Wang, Ying Chen, Jiangjun Wan () and Haichao Bai
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Guangshun Zhang: Rural Development Research Institute, Sichuan Academy of Social Science, Chengdu 610071, China
Yi Su: Rural Development Research Institute, Sichuan Academy of Social Science, Chengdu 610071, China
Ziming Wang: Faculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, China
Ying Chen: Rural Development Research Institute, Sichuan Academy of Social Science, Chengdu 610071, China
Jiangjun Wan: School of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Du Jiangyan, Chengdu 611830, China
Haichao Bai: Beijing GISUNI Information Technology Co., Ltd., Beijing 100028, China

Land, 2024, vol. 13, issue 11, 1-22

Abstract: In the rapid process of urbanization, revealing the patterns and driving forces behind the evolution of blue–green spaces holds significant value for optimizing urban blue–green environments. This study systematically investigates the spatial–temporal evolution characteristics and driving forces of blue–green space in the Chengdu–Chongqing Economic Circle from 1990 to 2020, utilizing GIS technology, landscape pattern analysis, and geographic detectors. The research findings indicate the following: (1) The area of blue–green space in the study area exhibits a general trend of initial growth followed by decline, with significant changes occurring between 2010 and 2020. (2) The fragmentation degree of blue–green space is gradually increasing, while connectivity among landscapes is decreasing; however, there has been an increase in landscape distribution uniformity. More than 90% of blue–green spaces expanded mainly through adjacency patterns. (3) In examining driving forces, it was found that temperature, topographic relief, elevation, population density, and construction intensity are the primary driving factors. Notably, the influence of natural factors has diminished over time while human social factors have significantly intensified. This study offers solutions for optimizing the configuration of blue–green spaces within the Chengdu–Chongqing Economic Circle. It also serves as a reference case for promoting high-quality urbanization in developing countries undergoing rapid urbanization.

Keywords: blue–green space; landscape pattern; spatial–temporal evolution; driving force; Chengdu–Chongqing Economic Circle (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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