The Design And Establishment Of Shanxi Spermatophyte Ecological Information System

Shanxi province is located in the eastern of Loess plateau. The landscape is complicated within the territory and its natural ecology conditions are various. Shanxi is both the transition belt from subtropical climate to temperate climate and stagger area between warm temperate zone broad-leaved deciduous forest zone of vegetation and temperate zone grasslands zone of vegetation. Therefore, the plant groups are abundant and the vegetation types are complicated. Building the Shanxi spermatophyte ecological information system is of important theory significances and practical application values for protecting biological diversity and developing and using resources. This thesis discusses the design and establishment of Shanxi spermatophyte ecological information system on the basis of investigation and analysis of the status quo of biodiversity information system.Shanxi spermatophyte ecological information system based on three-tier browser-server architecture, which is advanced technology. In this architecture, presentation, functionality, and data are completely separate. Users could access database through dynamic and alternant search interface. Through adopts three-tier architecture, it has openness, extensibility, easy maintenance, and unified client interface, low cost, cross-platform and many other advantages.Large amount of literature and photographs information has been collected on the basis of consulting all kinds of documents broadly. And Shanxi spermatophyte ecological information system has been built using Visual Studio 2003 C# and Microsoft Sq / Server 2000. The whole procedure has been divided into 4 transverse modules: plant information manage module, the user information and purview manage module, and plant ecology information inquiry module and backstage user log on module. The system initially realizes the basic functions of the data management, such as quickly adding, deleting, revising, inquiring, summing up and outputting etc. The basic information database of species includes wild spermatophytes in Shanxi, common and cultivated species. The information of every plant species includes several parts, such as serial number, species name, Latin name, classification, cytology and genetics, morphological characters, chemical components usages and its development and utilization, the rare endangered and protective rank, distributions and habitats, geographic flora distribution eco-zones, geographical distribution and ecological type, etc.This system sufficiently takes the advantages of computers' integration ability to the information. It can serve for production needs in a refined way. And it is conveniently revisable to the databases, and the system can be transplanted and applied to other area.In the process of systematic building-up, the now available norm is followed. For example, the catalog database establishes plant species codes according to the "classification and codes of Chinese plants" drafted by Chinese Academy of Sciences. While building up the system, metadata for compilation and information sharing. According to the metadata, the database can be searched and visited, the system resources can be used more effectively and the data can be managed and good for secondary development.The design and use of this system were detail in this thesis. In addition, the problems in the construction of described in ecological information system were farther discussed.