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Global and regional tree species diversity

Journal of plant Ecology 2019年第2期12卷 210-215页

作者： Hong Qian Tao Deng Hang Sun Research and Collections Center Illinois State Museum1011 East Ash StreetSpringfieldIL 62703USA Key Laboratory for plant Biodiversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China

Aims Understanding tree species richness at a global scale and the ori-gin and maintenance of patterns of tree species richness across the world is crucial to preserving tree species *** recently published global tree database(***)is the only source with tree lists at both global and national ***,our review and assessment show that many species included in GlobalTreeSearch are not tree *** addition,several thou-sands of tree species in the botanical literature have not been included in *** exact number of tree species in the world remains *** study aims to correct errors with GlobalTreeSearch and to estimate the number of tree species in the world based on a large number of regional *** We standardized nomenclature and spellings of the species names according to The plant *** used 62 floristic sources,along with plant growth form and height,to assess the GlobalTreeSearch species checklist and to determine the degree to which GlobalTreeSearch incorrectly treated non-tree species as tree *** Findings Based on our review on 60.8%of the species in the GlobalTreeSearch database and the number of additional tree species that we have found from 62 continental,national,regional and local floris-tic sources,we found that about 8.7%of the species included in GlobalTreeSearch are not tree species(they are herbs,shrubs or vines).We estimate that there would be about 61000 tree species(including approximately 5500 species that are primarily shrubs but occasionally trees)in the world.

关键词： GlobalTreeSearch global tree species richness plant checklist national tree lists

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