珠穆朗玛峰自然保护区生态环境数据集成方案  

Multi-Source Ecological Environment Data Organization and Integration for the Qomolangma Nature Reserve

作　　者：阚瑷珂[1] 王绪本[2] 吴旭[2,3] 李国庆[2] 余年[4] 高志勇[5] 汪刘艳[5] 

机构地区：[1]西华师范大学国土资源学院,南充637002 [2]成都理工大学信息工程学院,成都610059 [3]成都东软信息技术职业学院,成都611844 [4]铁道第二勘察设计院,成都6100314 [5]西藏自治区科技信息研究所,拉萨850001

出　　处：《地球信息科学》2009年第4期505-512,共8页Geo-information Science

基　　金："中国-比利时"国际科技合作项目(2008DFA11020);西藏自治区重大科技计划项目(2008KJAG18);国家科技支撑计划项目(2007BAC06B00)

摘　　要：多源生态环境数据的科学组织与集成方法,对开展区域生态环境研究意义重大。本文以西藏珠穆朗玛峰国家级自然保护区为例,研究典型高原生态环境系统的数据特征和组织分类、数据模型构建、编码和元数据等有关数据集成的关键问题。设计了生态环境数据集成概念模型框架,从数据集分层组织、属性编码和元数据标准制定等多层面描述其基本语义结构,建立了珠峰自然保护区多源生态环境数据库。通过CASE工具Microsoft Visio2003建模和数据预处理,无缝集成FGDB(File Geodatabase)数据库中的生态环境专题信息;结合空间认知规则,并叠加要素类所表现的语义特征,实现面向数据集成分析的基本信息提取,乃至产生新的知识和规律。本文提出的珠峰自然保护区生态环境数据组织和集成方案,形成了一套初步可行的"数据集成-信息提取-知识发现"生态信息流映射机制,为区域生态环境研究提供了实用、可靠的数据基础保障。It is of eco-environmental in Tibet as a case great significance to study on the scientific organization and integrated method of multi-source data in regional ecological environmental research. Taking Qomolangma National Nature Reserve study, this paper discusses the key issues related to data integration, such as data characteristics of typical plateau ecosystem, data classification and organization, data modeling, as well as data encoding and meta- data, etc. We design a conceptual modeling framework of eco-environmental data integration firstly, then, provide a multi-dimensional description of the basic semantic structure,which concludes datasets hierarchy and organization, attributes encoding and metadata standards. Lastly, we construct the multi-source ecological environment database of Qomolangma Nature Reserve. Through CASE tool Microsoft Visio 2003 modeling and data pre-processing, we seamless integrate eco-environmental thematic information that stored in FGDB database. Combined with spatial cognition rules and stacking the semantic characteristics demonstrated by feature class, basic information extraction orientated data integration analysis can be completed, and new knowledge and laws can even be generated. Based on eco-environmental data organization and integration, the solution we designed for Qomolangma Nature Reserve can establish a preliminary suit of ecological information flow mapping mechanism of ＂data integration-information extraction-knowledge discovery＂ ,which provides the practical and reliable data infrastructure for regional eco-envi- ronmental research.

关 键 词：数据集成 珠穆朗玛峰自然保护区 生态环境专题信息 元数据 

分 类 号：S759.9[农业科学—森林经理学]