Abstract
The Huai River is an important flood control and discharge river in the middle and east of China, and the development of ecological economy with regional advantages is significant for the protection and improvement of the resources and environment of the basin. On the basis of defining the connotation of an ecological economic system, this study constructed an index system, and it applied the methods of data envelopment analysis (DEA) and exploratory spatial data analysis (ESDA) to study the ecological economy of the Huai River. This study concluded that (1) the efficiency in most areas was efficient, but inefficient in a few areas; (2) the causes of inefficiency were unreasonable production scale and unqualified production technology, which led to redundant input of resources, insufficient output of days with good air quality, and excessive output of particulate matter with less than or equal to 2.5 microns in diameter (PM2.5); and (3) the efficiency was different in different regions, so it was necessary to respectively formulate and implement strategies for protection and development of resources and environment. The research results can be used as an important reference for formulating ecological economic policies around the world.
Highlights
The resource depletion and environmental pollution [1,2,3,4,5] caused by the rapid development of modern society and economy are becoming more and more serious and have been identified as global public health issues [6]
The slacks-based measure (SBM) model improves the measurement accuracy of the ecological economic efficiency of decision-making units by constructing multiple input indicators and desired and undesired output indicators and directly adding slack variables to the objective function [28,30]
Rybaczewska-Błażejowska and Gierulski [27] built a BCC-data envelopment analysis (DEA) model in which a set of impact categories from the life cycle assessment (LCIA) stage were used as input values and economic indicator was used as a output value to evaluate efficiencies of agricultural ecological technology about 28 EU countries
Summary
The resource depletion and environmental pollution [1,2,3,4,5] caused by the rapid development of modern society and economy are becoming more and more serious and have been identified as global public health issues [6]. The Huai River Basin is a highly polluted river basin in China due to the traditional rapid economic growth [1]. Many scholars have paid attention to the problems of rainfall, flood disaster [10], water resource consumption [2], and water resource pollution [1] in the Huai River Basin, and there is a lack of research on the transformation of economic growth mode in the basin
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