Characteristic Analysis Of Spatial Pattern Evolution Of Urban Land Use

As urban basic and essential component factor,the urban land is the carrier of urban society and economy activity.The development of urban relies on the land utilization of space in the fixed region scope, and its fixed economic structure, social structure and the ecological structure is bound to reflect by way of the corresponding land-use structure, and a series of change of urban-land self function and expression form reflect the veins of urban development. At present in our country majority of urban construction process, the land utilization space pattern is unreasonable, Therefore, follows the historical path which the city grows, carries on the exploration to the city spatial structure evolution mechanism,attempts to explore the city spatial structure to evolve the intrinsic movement rule, provides the effective reference for the city land utilization spatial structure optimization, obtains the city land resource use best economic efficiency, the social efficiency, the ecology benefit, regarding safeguards city sustainable development watershed.This article take Liuzhou as an example,and by the aid of supermap, GIS software, first carries on "vertical" "horizontal" the correlationdata excavation, use quantitative and qualitative methods to analyze Liuzhou's present land-use space pattern situation, again selects the analysis target,utilizes the city land utilization space analysis correlation model, Separately uses two basic aspects(exterior expansion and internal reorganization) from the city which the space expands to launch the evolved research, Promulgates the evolution characteristic and tendency of Liuzhou land-use structure; In this foundation, proposes the proper attention to both economy, social and ecology benefit multi-goals optimized suggestion.Thus for the next Liuzhou city land development use, the management and the urban planning and so on will provide the science the basis, also will provide the beneficial model for the domestic other cities similar research. Also provides the beneficial model for the similar research of other cities. Full text chiefly includes following several aspects:At first part, the meaning and the purpose of thesis are firstly made clear, and then briefly review and sum up the present study theory and practice at home and abroad, and the study thought and thesis structure frame well as research methods, possible innovations of full text. At second part, from the urban land's definition of connotation and signature analysis, evolutionand optimization theory, study thought and factors three aspects to spread out, providingtheory foundation and the implementation basis for full text study.The third part from the natural environment, Liuzhou administrative area delimited, the social economy situation, land utilization structure characteristic and so on to analyze the status quo of research object.The 4th,5th part spreads out evolution study on macroscopic and microcosmic layer; in the 4th part, separately selects the expansion direction index, the expansion speed index and the economical index to analysis the exterior expansion characteristic of the city from the macroscopic aspect, thoroughly data excavating, indicating the exterior expansion characters; part five analyse the microcosmic aspects of the structural adjustment of urban land utilization, through this chapter analysis, obtain the internal adjustment characters;The 6th part, based upon the analysis of the evolution tendency and characteristic, several pieces of advice about the urban land structure optimization are proposed;Finally, Part 7 author briefly sums up the major conclusions of this thesis, gives some advise and assume in future.