TEMPORAL-SPATIAL EVOLUTION AND DRIVING MECHANISM OF URBAN INDUSTRIAL ECO-EFFICIENCY IN MIDDLE-TO UPPER-STEAM OF YANGTZE RIVER ECONOMIC ZONE BASED ON CASES STUDY OF CHENGDU-CHONGQING ECONOMIC CIRCLE AND WUHAN METROPOLITAN CIRCLE
Realization of optimal industrial eco-efficiency is of significance to industrial green growth.This paper uses non-expected output SBM model to measure their 2010 to 2021 industrial eco-efficiency of 26 cities in Chengdu-Chongqing economic circle and Wuhan metropolitan circle as representative in the upper-to middle-stream of Yangtze River economic zone,and employs ArcGIS's visualization tools to compare their temporal-spatial evolution,and applies Tobit model and geographical detector model to identify their drives.It shows that their industrial eco-efficiency displays a fluctuating rising trend in two urban circles,with gap in the optimal efficiency.Polarizations partially exist inside prefectures in both circles.Industrial eco-efficiency is jointly constrained by R&D inputs,economy,transportation and openness,of which economy and transportation play a stronger promotion,others play a little in a need of raising foreign investment and intensifying research & development inputs to reach a positive promotion.This paper presents suggestions on strengthening an integrated development inside & outside of urban circle,establishing collective innovation network and increasing openness,aiming at promoting industrial eco-efficiency and local quality economic growth in the middle-and upper-stream of Yangtze River economic zone.
industrial eco-efficiencySBM modelTobit modelgeographic detector modelChengdu-Chongqing urban circleWuhan metropolitan circle
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NSTL
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