GIS METHODOLOGY AND ITS APPLICATION TO EVALUATION OF COORDINATION BETWEEN URBAN LAND USE AND GEO-ENVIRONMENTAL POTENTIAL
-
摘要: 城市地质环境评价是城市规划和场地选址的基础.以兰州市为例, 以地理信息系统软件ARC/INFO为开发平台, 建立了城市地质环境基础数据库, 将城市用地类型分为高层建筑用地、多层建筑用地、低层建筑用地、垃圾填埋用地及自然保护用地, 系统分析了各类用地与地质环境协调性评价的指标体系, 采用层次分析法建立了评价模型, 对不同的用地类型进行了评价.结果表明GIS与评价模型的结合可以快捷、准确地进行城市建设用地与地质环境的协调性评价Abstract: The urban geo-environmental assessment is a basic prerequisite for the urban planning and site selection. In this paper, the urban geo-environmental basic database including topography, surface and bedrock geology, depth to groundwater table and corrosion potential, lithology of bearing layer, and historic geo-hazards is established, with the Lanzhou city in northwestern China as an example, on the GIS-based ARC/ INFO development platform. The urban land use is categorized as high-rise building, multi-story building, low-rise building, solid waste disposal, and natural conservation. The index system is systematically analyzed for the assessment of the coordination between various land uses and geo-environmental potential. Then the analytic hierarchy process method isemployed to establish the evaluation model for different land uses, and geo-environment potential foreach urban land use category isevaluated. The analytical resultsindicate that the combination of the GIS technology with the quantitative evaluation model can be applied to the fast and accurate assessment of the coordination between land uses for urban construction and geo-environment potential.
-
图 1 研究区地形及建成区概况
Fig. 1. Sketch map showing topography and built-up area in the study area
图 2 高层建筑用地与地质环境的协调性评价
1.水体; 2.主要道路; 3.等高线(间距为100 m)
Fig. 2. Geo-environmental potential for different high-rise building categories
图 3 不同建设用地与地质环境协调性评价结果统计
Fig. 3. Histogram showing the distribution of geo-environ-mental potential for different land use categories
表 1 城市建设用地与地质环境协调性评价指标体系
Table 1. Selection of criteria for evaluating geo-environmental potential
-
[1] Hiscock K M, Lovett A A, Brainard D G, et al. Groundwater vulnerability assessment: two case studies using GIS methodology[J]. Quarterly Journal of Engineering Geology, 1995, 28: 179~194. doi: 10.1144/GSL.QJEGH.1995.028.P2.09 [2] Carrara A, Cardinali M, Detti R, et al. GIS techniques and statistical modelsin evaluating landslide hazard[J]. Earth Surface Processes and Landforms, 1991, 16: 427~445. doi: 10.1002/esp.3290160505 [3] Mejia-Navarro M, Garcia L A. Natural hazard and risk assessment using decision support systems, application: Glenwood Springs, Colorado[J]. Environmental & Engineering Geoscience, 1996, 2(3): 299~324. [4] 王思敬, 戴福初. 环境工程地质评价、预测与对策分析[J]. 地质灾害与环境保护, 1997, 8(1): 27~34. https://www.cnki.com.cn/Article/CJFDTOTAL-DZHB701.002.htm [5] 石有维. 城市建设用地适宜性评价——以鞍山市为例[J]. 中国土地科学, 1993, 7(5): 28~32. https://www.cnki.com.cn/Article/CJFDTOTAL-ZTKX199305008.htm [6] Dai F C, Liu Y H, Wang S J. Urban geology: a case study of Tongchuan city, Shaanxi Province, China[J]. Engineering Geology, 1994, 38: 165~175. [7] 王莲芬, 许树柏. 层次分析法引论[M]. 北京: 中国人民大学出版社, 1989. -
下载:
点击查看大图
计量
- 文章访问数: 3949
- HTML全文浏览量: 721
- PDF下载量: 13
- 被引次数: 0
