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分析1992—2011年洱海流域生活用水、农业用水以及工业用水的结构演变规律及驱动力因子,并根据信息熵和均衡度的概念分析讨论用水结构的演变趋势。结果表明,洱海流域用水结构呈单一用水类型突出,用水类型间差别较大,用水结构保持在一个低水平的无序状态,用水系统的均衡程度趋于稳定;总用水量在波动中缓慢上升,且受农业用水量影响较大;农业用水量总体比较稳定,生活用水量呈持续逐年增加趋势,工业用水量变化不明显。
The structural evolution and driving forces of domestic water, agricultural water and industrial water in Erhai Lake Basin from 1992 to 2011 were analyzed. According to the concept of information entropy and equilibrium, the evolution trend of water use structure was discussed. The results show that the structure of water use in Erhai Lake Basin is single water type, and the water types are quite different. The water structure is maintained at a low level of disorder and the equilibrium of the water system tends to be stable. The total water consumption slowly rises in fluctuation, Which is greatly affected by the agricultural water consumption. The agricultural water consumption is generally stable, and the domestic water consumption has been increasing year by year. The change of industrial water consumption is not obvious.