Spatial–Temporal Evolution and Coupling and Coordination of “Production–Life–Ecological” in Energy-Rich Area: A Perspective on Structure and Function

The conflict between socio-economic development and ecological protection is prominent, as the practice framework for territorial spatial planning and the rational layout and function coordination of production–life–ecological (PLE) spaces are crucial for achieving regional sustainable development. However, the dynamic evolution of PLE structure and function, as well as the driving mechanisms for the sustainable development of PLE, are still understudied. Therefore, this study takes the Ji-shaped bend Energy-Rich Area (ERA) of the Yellow River basin as a case study, classifies the PLE spaces based on land use data, and develops a PLE function indicator system consistent with the regional characteristics of an ERA. This paper characterizes PLE from both structure and function perspectives and explores the coupling and coordinated degree (CCD) among PLE functions and their driving factors. The results show the following: (1) From 2000 to 2020, the area of living space increased by 35.86%, while areas of production and ecological space decreased by 2.10% and 0.08%, respectively. (2) The PLE function increased, with the production function performing better in the typical ERA and the ecological function performing well in the atypical ERA. (3) From 2000 to 2020, the CCD of the PLE function increased by 24.85%, with atypical ERA demonstrating a higher CCD than typical ERA. (4) Factors in production function had the most significant impact on the CCD of PLE function, followed by living drivers. These results provide valuable insights and guidance for regulating PLE and promoting sustainable development.