Supplementary file 1_Evaluation and analysis of climate change adaptive capacity in the Chengdu-Chongqing region, southwestern China.pdf

Various strategies have been proposed to enhance the adaptive capacity to climate change. The majority of studies evaluating adaptive capacity have focused on the provincial level, with relatively fewer studies conducted at the municipal or sub-municipal levels. Also, much of the research tends to concentrate on specific aspects of climate change impacts. The Chengdu-Chongqing region faces substantial challenges due to climate change, making the strengthening of urban capacity for climate change adaptation particularly crucial. This study constructs an evaluation index system for urban climate change adaptive capacity of Chengdu and Chongqing from 2017 to 2023. The findings indicate substantial improvements in adaptive capacity, driven by key factors such as water resources, human health, infrastructure, and disaster prevention. Notably, indicators such as the green coverage rate, cultivated land area, and health technician availability emerged as critical contributors to adaptive capacity. This research highlights a strategic shift towards technological-financial capacity and the strengthening of institutional frameworks. The research identifies key future priorities for enhancing urban adaptation, such as increasing green space, improving water resource management, and strengthening health systems. Furthermore, we discuss the regional coordination climate change adaptation capacity in Chongqing and Chengdu, policy recommendations, and adaptation funding allocation recommendations. The research pioneers an integrated evaluation system for urban adaptive capacity assessment, thereby contributing innovative decision-support for cities seeking to strengthen their adaptive capacity.