Temporal-spatial Changes Analysis of Land Use Structure in JilinCity Based on Information Entropy

Abstract

City land use is a very complex system, and its development is influenced by many factors. The city land utilization structure will directly affect the development of the city. Information theory can reflect the order and structure of land use, which provides decision support for the city land utilization structure optimization. Based on the land use data of Jilin from 2000 to 2012, this paper selects information entropy, Equilibrium degree and Advantage degree as evaluation indexes. The land use change is done spatial-temporal analysis of recent years, and exploring the main driving factors of influencing the change of structure. The results show that, the information entropy of Jilin city land use is reduced gradually in recent years, and the land use structure tend to be ordered steadily; spatial difference of information entropy is bigger, showing obvious regional characteristics, and the larger entropy mainly concentrated in the economically more developed regions. In land use change, economic and demographic factors, land use change has the maximum effect on the information entropy, and the economic and demographic factors have different degree restricts on the information entropy.