GIS辅助城市用地结构分析与用地调整的应用初探

面对复杂的城市问题,单一学科的理论和方法往往束手无策,交叉学科的研究是近年来城市问题研究的主要趋势之一,特别是随着GIS的发展,借助GIS及相关学科的研究方法和手段进行城市现状分析和预测将是城市学领域发展的重要方向之一。本文以湖北省崇阳县白霓镇为例,借用经济学供需基本概蓬和分析方法,结合社会学的调查研究方法,利用系统工程方法和GIS技术,在深入调查的基础上,开创性地提出城市用地供需度的概念,并从它们与区位之间关系的角度出发分析用地结构,探讨了GIS在城市用地结构分析与辅助用地调整方面的应用,旨在抛砖引玉,引起同行们对新技术条件下传统研究方法革新的重视。

AN APPROACH TO URBAN LAND-USE ANALYSIS BASED ON GIS

Facing with more and more complicated urban problems, one single theory or method is not competent for resolving them. People are now paying more attention to the relationship among urban social structure, economic structure and land use structure in urban studies and the study methodology is heading for synthesis. With the development of GIS technic, the development of interdisciplinarity with GIS and some other subjects is one of the main trends for urban studies. In this paper, the author tried to use a new approach to urban land use analysis based on GIS and some other economic and sociological methods. Doing a case study in Baini town, Chongyang County, Hubei province in China, the author tried to set up a new method for the study of urban structure. In this study, the author used the concept of demand and supply mostly used in economic field, and did a little modification. The author changed them into the concepts of the degree of demand and supply, which means: the total amount of land use demand and land use supply is one, and the degree of both demand and supply means the percent of this one unit in different location. At the same time, the author modified traditional social questionnaire, and used certain graph for demand's position when doing questionnaire. After gathering both the material of social demand, and land use possible supply, the author used GIS for analysis. By setting up certain model, the author analyzed some most important land uses. After analyzing the relationship between each land use' demand and supply in different locations, the author checked out the hidden problems, and gave some suggestion both for urban structure renewal and land use management. The result shows that the demand of both residential land use and commercial land use is much smaller than supply in the periphery, which means that concentrated development will be more suitable for Bini town. Secondly, as to residential land use in Bini town, the distribution is quite disorder, and the demand supply analysis shows that when people select their residential area, they pay more attention to both the location and the environment. Thirdly, as to commercial land use, the trend of concentration is more obvious than others. Lastly, the author did the concept plan for the town, and gave some possible suggestion for the management.