J Syst Evol ›› 2009, Vol. 47 ›› Issue (6): 525-534.DOI: 10.1111/j.1759-6831.2009.00051.x

• Research Articles • Previous Articles     Next Articles

Autecology and conservation status of Magnolia sargentiana Rehder & Wilson (Magnoliaceae) in Dafengding region, southern Sichuan Province, China

1Jing WANG 1Ya TANG* 1Zheng-Hua XIE 2Mian-Yue ZHANG   

  1. 1 (Laboratory for Biodiversity and Environmental Studies, Department of Environmental Sciences, Sichuan University, Chengdu 610065, China)
    2 (Administrative Division of Mamize Provincial Nature Reserve, Leibo, Sichuan 616550, China) * Author for correspondence. Postal address: Laboratory for Biodiversity and Environmental Studies, Department of Environmental Sciences, School of Architecture and Environment, Sichuan University, Moziqiao, Chengdu, Sichuan 610065, China Tel.: +86 28 8541 5108. Fax: +86 28 8540 5613 E-mail address: .
  • Received:2009-03-23 Published:2009-10-14

Abstract: The first population ecology study of the endangered Magnolia sargentiana Rehder & Wilson (Magnoliaceae) is reported in the paper. It 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 from 1983 to 1994 has led to dramatic 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 forest to reduce humans and ungulates, better education of local people, and increased awareness of wildlife conservation.

Key words: Magnolia sargentiana, medicinal plant, plant conservation, vulnerable species.