基于信息熵的徐州市土地利用结构分析及其GM预测

Analysis of Land Use Structure and GM Prediction in Xuzhou City Based on Information Entropy

根据信息熵理论,从土地利用结构信息熵、均衡度、优势度的角度分析了徐州市2005—2009年土地利用结构的变化,对影响信息熵值大小的土地利用类型做了初步探讨,并运用灰色系统理论的GM(1,1)模型,对2010—2015年徐州市的信息熵、均衡度和优势度进行预测。结果表明:信息熵呈现逐年递增的趋势,土地利用结构逐渐由有序向相对无序状态发展;均衡度逐年递增,优势度逐年递减,说明徐州市土地利用结构正在向平衡状态不断演化。

Based on entropy theory, this paper studies the variation of land use structure information entropy, the equilibrium degree and the dominance degree in Xuzhou City from 2005 to 2009, discusses the types of land use affecting the values of information entropy, and predicts the information entropy, equilibrium degree and dominance degree from 2010 to 2015 using the GM （1,1） model of Grey System Theory. The results show that information entropy has been increasing year by year and the land use structure in Xuzhou City gradually developed from an ordered state to a relatively disordered state, and that the equilibrium degree has increased every year and dominance degree decreased year by year, proving that land use structure in Xuzhou City has been evolving to equilibrium.