[Objective] To extract information from Chinese plant species diversity description text. [Methods] Take the plant species diversity domain ontology as the foundation, and adopt the strategy of stepwise selection and annotation on paragraph, sentence and concept. [Results] A sample including 4 734 information points is used to test. The value of extraction accuracy rate, recall rate and F-measure achieves 0.86, 0.85 and 0.85 respectively. [Limitations] In order to solve the problems on extracting information from description text, the rule set should be improved in the future. [Conclusions] The research scheme can fulfill the information extraction from Chinese plant species diversity description text effectively.
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