Spatiotemporal variations and influencing factors of productive water consumption structure in Guangdong Province
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Abstract:
Multi-regional LMDI decomposition model and Information entropy were adopted to analyze spatiotemporal variations of the productive water consumption structure in 21 cities in 4 regions of Guangdong Province from 2005 to 2018, and decompose the five driving factors, including population size, population distribution, economic development, industrial structure, and water consumption intensity. The results show ed that: the overall productive water consumption in Guangdong showed a downward trend from 2005 to 2018, and the reduction was more remarkable in the urban agglomeration of Pearl River Delt (PRD), overall, the productive water consumption efficiency of all industries improved with a significant difference among different regions;the proportion of the productive water consumption of three industries was found stable, and the water use structure in the PRD region was relatively balanced, and the water use structure in the east,west, and north of Guangdong tend to be unitary, with water used for the primary industry; economic development was the dominant positive driver leading to the increase of productive water consumption, water consumption intensity was found to be the main negative driving factor, while the industrial structure was the seondary negative factor, respect ively.The promotion effect of population size driver was not significant.Population distribution driver showed a slight promotion effect in PRD, while a slight inhibitory effect in the northern, eastern, and western Guangdong.The results of this research have a certain reference value for coordinating the relationship between re gional industrial development and w ater resources and formulating a reasonable w ater resource strategy and planning.
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