摘要
作为一个多准则评价的相对较新概念,基于GIS的OWA方法可以通过权重计算产生多种决策策略。分析了OWA方法与布尔决策和权重线性叠加(WLC)等多准则评价方法在决策策略上的区别,介绍了依据次序重要性来计算次序权重和应用层次分析程序(AHP)构建比较矩阵来计算准则权重的方法,并应用于唐山市防灾规划,计算了唐山市地质灾害影响下的土地利用适宜度。在分析计算结果的基础上,为唐山市土地资源的合理开发提出了建议。
As a multi-criteria evaluation procedure, ordered weighted averaging （OWA） is a relatively new concept, which can generate a wide range of decision strategies through weights calculating. The difference in decision strategy between OWA and other GIS-based MCE methods, such as Boolean overlay and weighted linear combination （WLC）, is analyzed. The calculation method of order weight based on rank-order approximation, and the construction method of comparison matrix for criterion weight based on analytical hierarchy program （AHP）, are introduced. GIS-based OWA method is applied to Tangshan City as an example application, and land-use suitability affected by geological disaster factors in Tangshan City is calculated. Finally, the calculating results are analyzed, and some advice is proposed for rational development of land resource.
出处
《地理空间信息》
2008年第5期22-24,共3页
Geospatial Information
基金
国家自然科学基金资助项目(50678059)
