Fig. 2 | Scientific Reports

Fig. 2

From: Studying carbon emission effects on ecological welfare performance in Chengdu–Chongqing urban agglomeration using super efficiency network SBM

Fig. 2

Location of study area. Left map: Standard Map Service System (http://bzdt.ch.mnr.gov.cn), Review No. GS(2019)1686. Elevation data: ASTER GDEM V3. This map shows the geographical scope of the research region, which includes the entire Chongqing Municipality and 15 cities in Sichuan Province (excluding specific districts/counties in Dazhou, Yaan, and Mianyang), with a total area of approximately 185,000 square kilometers. The figure marks the administrative boundaries of CCUA, its neighboring provinces, and key latitude/longitude lines, providing a clear spatial reference for understanding the study area’s location and scope.

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