The "Double Rings" spatial data warehouse structure based on the ecology landscape and the knowledge extracting and forecasting methods research

Firstly, in view of the fact that this article research area involves the ecology and the spatial data warehouse domain, the research content is the "San Jiang Bing Liu" area geographical distribution of representative plants, in order to effectively organize spatial & non-spatial data and express ecology knowledge, this article combines the computer science with the corresponding principle of landscape ecology (LE), designs the "double rings" spatial data warehouse structure based on level principle spatial combination theory on landscape ecology. And then, for gaining association between research target and Ecosystem, in this article, a group of extracting and forecasting methods are proposed and implemented to foretell whether some kind of plant exists in unknown region. Finally, these methods gave the experimental result by using real data. Therefore, we hold that we provided an effective approach to support knowledge discovering of our project.