Evaluation of sustainability development of the eco-economic system of water and soil resources based on emergy analysis

Abstract

Abstract Due to the swift progress of the economy and society and the rapid escalation of urbanization rates, the sustainable examination of individual water or land resources is no longer adequate to satisfy the rational allocation demands of urban development concerning the water and soil resource framework. To enhance the efficiency of utilizing water and land resources comprehensively and the rationality of the joint allocation of these resources, this paper presents a comprehensive analysis of the eco-economic system of water and land resources, encompassing six key aspects: system emergy flow, water resources subsystem, land resources subsystem, economic subsystem, ecological subsystem, and social subsystem. By considering three types of land use (construction land, agricultural land, and unused land), we constructed a sustainable evaluation index system for the eco-economic system of water and land resources based on the emergy theory. We employ the emergy theory analysis method to provide a comprehensive assessment of the sustainable development status and development trend of the Luoyang City from 2011 to 2020. The results show that Luoyang belongs to the consumer economy and the development of water and soil resources of the ecological economic system in Luoyang is in a critical state of unsustainable and mild sustainability from 2011 to 2020.