Contrasting floristic richness of alpine plant communities on the Eastern Qinghai-Tibetan plateau

Onipchenko, V.G.; Shulakov, A.A.; Zernov, A.S.; Elumeeva, T.G.; Wu, Y.; Wang, Q.; Werger, M.J.

Авторы: Onipchenko V.G., Shulakov A.A., Zernov A.S., Elumeeva T.G., Wu Y., Wang Q., Werger M.J.A
Журнал: BOTANICA PACIFICA: A JOURNAL OF PLANT SCIENCE AND CONSERVATION
Том: 3
Номер: 1
Год издания: 2014
Издательство: Учреждение Российской академии наук Ботанический сад-институт Дальневосточного отделения РАН
Местоположение издательства: Владивосток
Первая страница: 33
Последняя страница: 37
DOI: 10.17581/bp.2014.03103
Аннотация: We expected that local plant species richness is high in relatively old and large territories that harbor specific conditions with characteristic communities.Furthermore,herbivory can promote the coexistence of different species and support high floristic richness. We tested the hypothesis that large alpine areas with a long history of grazing in the Tibetian Mountains support high local floristic richness in comparison with other regions. Number of vascular plant taxa was recorded in series of nested quadrates with sides from 5 to 1000 cm in four alpine communities with different grazing regimes in the eastern part of the Qinghai-Tibetan plateau at Mount Kaka, Minshan Mountains, Sichuan province, China. We obtained high values for vascular species numbers for moderately grazed Tibetan meadows and Spiraea thickets (75.4 and 81.0 species/100m2, respectively). This supports our hypothesis. On the other hand, alpine fens and Rhododendron thickets scored relatively poor on floristic richness values, and this may result mainly from the marginal ecological environment and also from the competitive advantage of Rhododendron in the absence of grazing.
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Contrasting floristic richness of alpine plant communities on the Eastern Qinghai-Tibetan plateauстатья

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