| [population characteristics of coptis chinensis var. brevisepala in anhui province and its endangering mechanism]. | the study on the distribution pattern, population size, and age structure of c. chinensis var. brevisepala in anhui province showed that c. chinensis var. brevisepala mainly distributed in the southern mountain areas such as mts. jiuhuashan, guniujiang, huangshan and qingliang peak. the habitats had two kinds, i.e., under woods and beside water ditches, both of which were shady and humid, with loose and acidic soils containing abundant organic matter. the shading degree surpassed 70%, air humidi ... | 2005 | 16262047 |