城市土地结构熵值变化和持续利用--以广西北流市为例

Entropy Value Changes of Urban Land Structure and Sustainable Use——A Case Study of Beiliu City in Guangxi

城市土地利用是一个复杂系统,系统的稳定与否直接关系到城市各项活动的正常进行。从信息论的信息熵原理可知,信息熵的大小可反映出土地利用系统的有序程度及土地利用方式的不同。借助系统论中的信息论思想,运用信息熵方法,计算分析1995—2007年广西北流市城市土地利用结构的信息熵和均衡度,揭示出北流市土地利用结构的熵值特征和演化规律,并提出了广西北流市城市土地可持续利用的对策。

As a complex system, the stability of urban land use was directly relevant to a city＇s development. According to the principle of informarion entropy based on systematic theory and information theory, the information entropy and the ordinal degrees of urban land - use structure were different from each other in different ways of land use. With the help of the concept of information theory on system, using the information entropy method, through the calculation and analysis of the information entropy and equilibrium degree of land - use structure of Beiliu City in Guangxi from 1995 to 2007, it revealed the information entropy values characteristics and law of evolution to the land use structure of Beiliu City in Guangxi. In the same time, the authors put forward the strategies of urban land sustainable use of Beiliu City in Guangxi.