| Autecology and conservation status of Magnolia sargentiana Rehder ＆ Wilson （Magnoliaceae） in the Dafengding region,southern Sichuan Province,China |
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| 作者姓名： | Jing WANG ;Ya TANG ;Zheng-Hua XIE ;Mian-Yue ZHANG |
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| 作者单位： | Jing WANG,Ya TANG,Zheng-Hua XIE(Laboratory for Biodiversity and Environmental Studies, Department of Environmental Sciences, Sichuan University, Chengdu 610065, China);Mian-Yue ZHANG(Administrative Division of Mamize Provincial Nature Reserve, Leibo, Sichuan 616550, China) |
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| 基金项目： | Acknowledgements The project was funded by the Foundation Franklinia of Belgium and the 111 Project of China （no. B08037）. The authors are grateful to Mr. Peter WHARTON （University of British Columbia Botanic Garden, Vancouver, Canada） for useful comments and discussions on earlier research plans. The authors thank Li-Yun ZHANG, Jun-An CHEN （Sichuan University）, and the staff of the Mamize Nature Reserve for assisting us in our research. The authors thank Professor Mark SCHWARTZ （University of California, Davis, Davis, CA, USA） and Dr. Koen CAMELBEKE （Arboretum Wespelaar vzw, Haacht, Belgium） for English language editing. |
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| 摘 要： | This paper reports the first population ecology study of the endangered Magnolia sargentiana Rehder ＆ Wilson （Magnoliaceae）. Magnolia sargentiana is a protected species in China, but little is known about its present status in the field. In 2007 and 2008, we surveyed the population and conservation status ofM. sargentiana in the Provincial Mamize Nature Reserve and the National Meigu Dafengding Nature Reserve, Sichuan Province, southwestern China. Natural regeneration is poor because of unfavorable environmental conditions and anthropogenic disturbances. Flower buds and bark ofM. sargentiana are used in traditional Chinese medicine and their collection by local people over the period 1983-1994 has led to marked population declines. The collection of flower buds and bark is now banned, but hewing branches for firewood and grazing continues to have a negative impact on the recovery of M. sargentiana populations. To protect the species, we require a ban on hewing branches, closure of primary forests to reduce the impact of humans and ungulates, better education of local people, and increased awareness of wildlife conservation.
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| 关 键 词： | 个体生态学 木兰 保护 种群生态学 |
Autecology and conservation status of Magnolia sargentiana Rehder & Wilson (Magnoliaceae) in the Dafengding region, southern Sichuan Province, China |
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| Jing WANG,;Ya TANG,;Zheng-Hua XIE,;Mian-Yue ZHANG.Autecology and conservation status of Magnolia sargentiana Rehder & Wilson (Magnoliaceae) in the Dafengding region, southern Sichuan Province, China[J].Acta Phytotaxonomica Sinica,2009,47(6):525-534. |
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| Authors: | Jing WANG Ya TANG Zheng-Hua XIE Mian-Yue ZHANG |
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| Abstract: | This paper reports the first population ecology study of the endangered Magnolia sargentiana Rehder & Wilson (Magnoliaceae). Magnolia sargentiana is a protected species in China, but little is known about its present status in the field. In 2007 and 2008, we surveyed the population and conservation status of M. sargentiana in the Provincial Mamize Nature Reserve and the National Meigu Dafengding Nature Reserve, Sichuan Province, southwestern China. Natural regeneration is poor because of unfavorable environmental conditions and anthropogenic disturbances. Flower buds and bark of M. sargentiana are used in traditional Chinese medicine and their collection by local people over the period 1983-1994 has led to marked population declines. The collection of flower buds and bark is now banned, but hewing branches for firewood and grazing continues to have a negative impact on the recovery of M. sargentiana populations. To protect the species, we require a ban on hewing branches, closure of primary forests to reduce the impact of humans and ungulates, better education of local people, and increased awareness of wildlife conservation. |
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| Keywords: | Magnolia sargentiana medicinal plant plant conservation vulnerable species |
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