Abstract
In order to realize sustainable development, ecological efficiency is particularly important and deserving of further study and discussion in China. Thus, the study proposed a comprehensive index for ecological efficiency in Jiangsu and evaluated the ecological efficiency of 13 cities in the year of 2007, 2012, and 2017 by using entropy-weighting TOPSIS method. Based on coupling model, the study discussed the interaction between economic growth and ecological efficiency in Jiangsu. The results indicated that the ecological efficiency of Jiangsu in these three years differed considerably. Ecological efficiency is the highest in central Jiangsu, whereas ecological efficiency in the northern and southern parts of Jiangsu is relatively low from the perspective of horizontal space. In terms of coupling, Wuxi and Suzhou were the stablest in southern Jiangsu. Economic growth in the central Jiangsu fluctuated, Suqian lagged. Furthermore, based on the findings, the industrial structure should be adjusted to improve ecological efficiency. In addition, the use of innovation and rational foreign direct investment and other measures should be promoted. These proposals aim at improving ecological efficiency and achieving overall sustainable development in Jiangsu, China.
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