| Land is the unsubstitution material base and special carrier which the humanity and socio-economic development cannot leave. Human activities will eventually reflect in the structure changes of land use. Different land use structure will have different economic, social and ecological benefits. Rational land use structure will promote sustainable use of land resources; those on the contrary will hinder the sustainable use of land resources.Based on the land use classification data of Xi'an city from 1996 to 2007, this paper analyses the dynamic change of information entropy of the land use structure of Xi'an using calculative model of information entropy of the land use structure. Then the information entropy of land use structure in Xi'an and Chongqing are compared. And then the spatial difference information entropy of the land use structure in Xi'an of the district (county) is analyzed. Finally application of mathematical statistics and related analyses the driving factors of land use structural changes in Xi'an. Analysis result show that: in overall, the land use structure information entropy in Xi'an in 12 years rose firstly, and then went in a stabilization trend; the proportions of traffic space, farmland, industrial land, settlements and mining land and woodland are the main factors which influence the land use structure in Xi'an information entropy value; the balanced land-use degree of Xi'an is slightly lower than that in Chongqing, relatively speaking, the structure of land use in Xi'an is less balanced; the information entropy of land use structure of Xi'an district (county) has obvious regional differences. The information entropy of the 13 districts (counties) can be divided into three ranges: high-value, medium-value, and low-value; The main driving forces which impacted the land use structure change can conclude into 4 kinds—population growth, urbanization, economic development and agricultural technology development. |
PDF Full Text Request