Health Assessment and Improvement Path of the Beijing-Tianjin-Hebei Ecological-Economic System from the Perspective of Emergy

Abstract

 As a crucial economic growth pole in China, the health of the Beijing-Tianjin-Hebei (BTH) ecological-economic system is key to regional sustainable development. Based on emergy theory, this study constructs an emergy analysis index system for the BTH ecological-economic system and comprehensively evaluates the health status of the region's ecological-economic system from 2015 to 2022. The study first converts energy inputs, economic activities, and waste emissions within the BTH ecological-economic system into emergy values and calculates the Emergy Loading Ratio (ELR) and the Emergy Sustainability Index (ESI). The results show that the ELR exhibits a decreasing trend, reflecting a gradual reduction in environmental pressure. The ESI value shows an increasing trend, reflecting its advantages in economic structure optimization and environmental protection. Therefore, based on the perspective of emergy optimization, this study proposes that, under the condition of a fixed total regional emergy, continuous promotion of green economic transformation, improvement of the level of sustainable development, driving the overall development of the region, and realization of a virtuous cycle of the regional ecological economy.