Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Shaanxi Province, Xi'an, 710027, China.
Yan'an University, Shaanxi Province, Yan'an, Xi'an, 716000, China.
Environ Sci Pollut Res Int. 2022 Oct;29(50):75921-75935. doi: 10.1007/s11356-022-20948-x. Epub 2022 Jun 4.
Sustainable evaluation of the eco-economic systems is crucial to resolve the contradiction between environmental protection and economic development and promote healthy urban development. This paper constructed an SEC framework for sustainable development index (SDI) evaluation of the eco-economic systems in the π-shaped Curve Area in the Yellow River basin based on the 3D ecological footprint (EF) model. The study was conducted from three aspects: the capital utilization scale and equity during the ecological supply and demand process, the development efficiency and capacity of the eco-economic systems, and the relations between the systems embodied by the coordination and security evaluation. Also, the SDI and its influence mechanism were studied using the fully arrayed polygon diagram and geographic detector. Findings include the following: EF depth is higher in cities with poor natural resources, while EF size is higher in cities with vast territories and rich resources. The arrangement of EF depth and EF size presents nearly a reverse trend, and the consumption of capital flow and capital stock complements each other. Cities can be classified as heavy utilization type, moderate utilization type, mild utilization type, and low stock appropriation type. From 2005 to 2019, the area's SDI and the three aspects presented evident spatial heterogeneity and formed clusters. The role of government, energy consumption, scientific innovation, industrial structure, urbanization rate, population, economic level, and openness level impact SDI differently. This study proposed a new insight for the sustainability evaluation of eco-economic systems.
生态经济系统的可持续性评价对于解决环境保护与经济发展之间的矛盾，促进健康城市发展至关重要。本研究基于三维生态足迹（EF）模型，构建了黄河流域π型曲线区生态经济系统可持续发展指数（SDI）评价的 SEC 框架。从生态供需过程中资本利用规模和公平性、生态经济系统发展效率和能力、系统之间关系的协调和安全评价三个方面，对 SDIs 及其影响机制进行了研究。利用完全排列多边形图和地理探测器对 SDI 及其影响机制进行了研究。结果表明：自然资源较差的城市 EF 深度较高，而地域广阔、资源丰富的城市 EF 规模较大。EF 深度和 EF 规模的排列呈现出近乎相反的趋势，资本流动和资本存量的消耗相互补充。城市可分为重利用型、适度利用型、轻度利用型和低存量占用型。2005-2019 年，该地区的 SDI 及其三个方面呈现出明显的空间异质性，并形成了聚类。政府、能源消耗、科技创新、产业结构、城市化率、人口、经济水平和开放水平对 SDI 的影响不同。本研究为生态经济系统的可持续性评价提供了新的视角。
