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地学信息共享是地学研究的重要内容 ,也是地学 (数字地球 )发展的趋势之一。促使或完成地学信息共享的核心技术主要为技术标准化规范、空间数据库、互操作 (元数据 )以及传输信道技术等。知识发现是建立在共享的地学信息基础之上 ,能有效地实现知识的增值以及知识的再生。知识发现与信息共享二者共同促进 ,相互发展。
Geo-information sharing is an important part of geo-science research and one of the trends in the development of geo-science (digital earth). The key technologies that promote or complete geo-information sharing are technology standardization, spatial database, interoperation (metadata) and transmission channel technology. Knowledge discovery is based on shared geo-information, which can effectively realize the value-added of knowledge and the regeneration of knowledge. Both knowledge discovery and information sharing promote and develop each other.