Objective To study population structure and regeneration law of Lamiophlomis rotata, a medicinal plant in Tibet. Methods Using methods of plant population ecology. Investigated the density of plant, expanding distance of leaves, weight and number of rhizome buds. Analyzed the size structure and growth pattern of rhizome buds. Results The population of L. Rotata could adapt the ecological environment of degraded grassland. The regeneration of L. Rotata depends on the germination of rhizome buds every new year. The number of rhizome buds has a positive correlation with the size of plant. The weight of aerial part also has a positive correlation with the underground part. The population of L. Rotata could recover its density and yield after proper harvest interval. Conclusion L. Rotata has the biology base of sustainable harvest.%目的 研究藏药独一味种群结构及更新规律.方法 采用植物种群生态学研究方法,调查独一味密度、叶展距、重量、根茎芽数目,计算样方内独一味大小结构、根茎芽生长规律.结果 独一味种群能适应退化草场生态环境.单株独一味每年更新依靠根茎芽萌发,根茎芽数目与独一味植株大小呈正相关;独一味地上部分重量与地下部分重量呈正相关.独一味种群能通过合理轮采恢复密度与产量.结论 独一味具备实现可持续采收的生物学基础.
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