| Groundwater data is the original witness of the development of groundwater specialty,it is extremely valuable wealth and important information resources,which plays an important role in the economic,social harmonious,stable development,ecological security and the sustainable utilization of groundwater.Groundwater data has the characteristics of multi-source,heterogeneous and difficult to share etc.In order to fully share and utilize the data of groundwater data,it must be integrated and built efficiently.However,the traditional database construction method lacks the deep cognition and the accurate description of entity concepts,attributes,and constraints semantic information,so it is difficult to integrate multi-source and heterogeneous groundwater data.Ontology is a communication tool that provides the common knowledge of the field and A specification,clear,formalized specification of a domain sharing conceptual model.Because of its formal description of entity concepts,relationships and attributes,ontology can provide semantic support for standardized integration and database construction of groundwater data.In the above background,this paper taked Guizhou karst groundwater database construction as an example.Trying to build groundwater domain ontology framework model for formalizing description of common knowledge in the field of groundwater.Then study research on integration and database construction method of groundwater data and practicing the method.In specific,this dissertation:(1)Through summarizing existing ontology construction theory and method,combining with the subject and object and its interaction,in the process of the groundwater activity,this paper put forword the framework model of groundwater domain ontology.(2)analysed the types and contents of groundwater data.In order to address problems of traditional data integration methods,combined with the functions of ontology in data integration,such as semantic disambiguation,table recognition and semantic mapping,put forword a integration method of groundwater date based on ontology to guide the integration of groundwater data.(3)By analyzing the main process of traditional data base construction,and combining with the role of ontology in data base construction,such as guiding the construction of database E-R model and database semantic description,put forword a database construction method of groundwater date based on ontology to guide the construction of groundwater database.(4)According to the proposed integration method of groundwater date based on ontology and database construction method of groundwater date based on ontology,Combined with the characteristics of groundwater data in Guizhou Province,built Guizhou Karst groundwater database and its management system.At the same time,the database for management and maintenance of karst groundwater data management system in Guizhou province is made.. |
