关键词: 信息熵, 均衡度, 用水结构, 变化特征, 安徽省

Abstract: According to the data published by Anhui Water Resources Bulletin, the variation in the characteristics of water use structure was studied and analyzed using methods of information entropy and balance degree. During ten years from 2006 to 2015, water use structure remained relatively stable for six typical cities, three major river basins and the entire province; there were slight fluctuations for some years, however, water use for agriculture remained its dominant position. Due to the differences in geographic location and climate, there are differences in the variation characteristics of water use structure in three major basin and cities; however, the variation characteristics of water use structure in Yangtze River basin is consistent with that of the entire province, water use structure of Chuzhou city is below the average level of the entire province. Water use structure was adjusted during the "twelfth five-year plan"; the proportion of water allocated to agriculture declined whereas non-agricultural water use increased, and in general it is going towards a more balance direction.

Key words: information entropy, balance degree, water use structure, variation characteristics, Anhui Province