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Promoting the coupling coordinated development between ecological protection and high-quality development is an important path to achieve sustainable regional development around the world. Taking Guizhou, China as a typical case, this study builds a comprehensive evaluation index system for ecological protection and high-quality development, and then uses the coupling coordination degree model to assess the spatiotemporal characteristics of ecological protection and high-quality development. According to the findings, Guizhou's ecological protection index and high-quality development index both exhibit an upward trend and a center-edge spatial pattern, but they also exhibit a "spatial misalignment relationship". The coupling coordination between ecological protection and high-quality development in Guizhou has shown a continuous growth trend from near-disorder to a primary coordination, with a spatial pattern of "central > western > eastern". This study enriches the knowledge body of sustainable development, helps Guizhou make decisions that are best for ecological protection and high-quality development, and is useful as a reference for other regions and countries. [ABSTRACT FROM AUTHOR]

Sustainable development is a common challenge for all global economies, and the assessment of the spatial distribution and development process of ecological resources is the basis of sustainable development. Considering the heterogeneity of regional ecological resource endowment, it is necessary to conduct a targeted assessment for different regions. In this study, we selected Guizhou Province, which is rich in ecological resources, but has a fragile environment, as our study area, and cultivated land, woodland, grassland, and water resources were selected as critical evaluation indicators. Notably, we applied Kernel density analysis methods, based on the remote sensing data of 2000, 2005, 2010, 2015, and 2020, to explore the spatiotemporal distribution characteristics and evolution pattern of regional ecological resources. The results indicated that the evolution of ecological resource development in Guizhou could be divided into three phases: degenerative (2000–2005), recovery (2005–2015), and development (2015–2020). The spatial distribution of Guizhou's ecological resource was shown to be heterogeneous in the north and south and more homogeneous in the middle regions. Guizhou has diverse land-use types, with obvious regional differences in land-use structure. Notably, even though the development of ecological resources in Guizhou has improved, the development and utilization degree of ecological resources is still low, and the ecological damage is serious. This study can be used as a scientific reference by policymakers and decisionmakers to develop new regulations for ecological resources protection and sustainable development in China. We suggest that different regions should adopt more detailed measures; particularly, it is important to establish a spatial governance system to promote ecological resources development in the context of local conditions. [ABSTRACT FROM AUTHOR]