Abstract
Urban agglomeration has been the core of coordinated development of regional economy in China, since urban agglomeration is deemed as the main form of new urbanization by central government. The rapid industrialization in the Yangtze River Delta (YRD) brings about large consumption of water resources as well as massive industrial wastewater discharge. In this case, we incorporate industrial water consumption and wastewater discharges into the directional distance function to construct and analyze the industrial wastewater discharge efficiency (IWDE) of cities in the YRD. The results indicate that the overall IWDE in YRD proceeded in a fluctuation way during our study period. Also, IWDE varied among the cities in the YRD due to their spatial differences in economic development, water resource endowment and environmental regulation. In addition, there was an observed spatial cluster of IWDE among different clusters of cities in the YRD.
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