摘要
基于地理本体应用模型,从干旱河谷自然本底特点及其形成机制入手,利用本体建模软件protege 4.1构建岷江上游干旱河谷领域本体模型,利用该区域基础地理数据分类提取出DEM、坡度、相对高程、土壤、裸地分布数据,在ArcGIS平台下实现基于地理本体的干旱河谷特征数字化表达,并利用栅格计算器定量界定出岷江上游干旱河谷区面积为118 515hm2。研究表明,利用地理本体深入剖析干旱河谷概念特征,在GIS技术支持下定量界定干旱河谷区域范围的方法具有一定的可行性,为相关领域边界范围的科学界定和形象化概念分类表达提供了一种全新的解决思路。
Based on geographic ontology application model,starting from the arid valley characteristics and formative mechanism of natural background,this paper uses ontology modeling software protege 4.1for constructing ontology model of arid valley in the upper reaches of Minjiang River and extracts slope,DEM,relative elevation,soil,the bare land distribution data by using the basic geographic data.The research realizes digitization of the characteristics of the arid valley based on geographic ontology in ArcGIS and quantificationally defines the area of arid valley in the upper reaches of Minjiang River is 118 515hm2 by raster calculator.The result indicates that the method to quantificationally define the scope of arid valley by geographic ontology and GIS is feasible and operational,it provides a new solution to define scope and classify concepts visually for relevant field.
出处
《地理与地理信息科学》
CSCD
北大核心
2015年第2期65-69,F0003,共6页
Geography and Geo-Information Science
基金
国家自然科学基金项目"岷江上游干旱河谷区梯级水电开发对生态环境波动效应研究"(41201541)
关键词
GIS
地理本体
干旱河谷
范围界定
岷江上游
GIS
geographic ontology
the arid valley
scope definition
the upper reaches of Minjiang River
