Study of the relationship between urban economic development and the utilization of water resources in Xi’an City based on information entropy and grey correlation grade
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Abstract:
Based on the water consumption data and economic and social development data of Xi’an City during 2005-2014, the relationship between urban economic development and water consumption structure was analyzed using information entropy and grey correlation method in terms of the time series. The results showed that: the information entropy of Xi’an water structure was growing; the advantage of a single water-consumption type was weakening; and the system balance was improving. The water consumption structure was becoming more reasonable. The correlation coefficients between the economic development and water structure of Xi’an were all above 0.45, suggesting significant correlations. The coupling degrees between urban economy and water structure were between 0.6 and 1, indicating a relatively close interactive coupling between urban economic development and water consumption structure. We suggest taking corresponding measures to control and ensure the balance between water supply and demand in Xi’an, and the key to doing so is to create and promote water-saving technologies.
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