Seed banks of a river-reservoir wetland system and their implications for vegetation development

doi:10.1016/j.aquabot.2008.04.014

CORC > 武汉植物园 > 中国科学院武汉植物园

	Seed banks of a river-reservoir wetland system and their implications for vegetation development
	Liu, Wenzhi 1,2; Zhang, Quanfa 2; Liu, Guihua 2
刊名	AQUATIC BOTANY
	2009
卷号	90 期号:1 页码:7-12
关键词	Danjiangkou Reservoir Hydrochory Interbasin water transfer Seed dispersal Vegetation restoration
ISSN号	0304-3770
DOI	10.1016/j.aquabot.2008.04.014
英文摘要	The Danjiangkou Reservoir, constructed in 1970s, is the water source area of the middle route of China's interbasin South-to-North Water Transfer Project. To serve such purpose, the Danjiangkou Reservoir Dam will be increased from its present 162.0 m to 176.6 m, and its regular water level from 157 m to 170 m above mean sea level. Vegetation development in the new reservoir margins is therefore one of great environmental concerns. To explore the potential origin of species in the present reservoir margin vegetation, we investigated and quantified the composition in the soil seed banks and established vegetations of the reservoir margins and its upstream- and downstream-wetlands. In both existent vegetation and seed banks, most species and seedlings were found in upstream wetlands, followed by reservoir margins and downstream wetlands. Seedling density of downstream wetlands was reduced by 75-80% compared to upstream wetlands and reservoir margins. This suggests that presence of the dam reduced the diversity and abundance of downstream propagules. Sorensen's coefficient and the comparisons of rare species indicated that the seed bank composition of reservoir margins was evidently associated with upstream wetlands. It implies that hydrochorous transport of seeds from the upstream catchment is critical for plant colonization of the reservoir margins. (c) 2008 Elsevier B.V. All rights reserved.
资助项目	National Science Foundation of China[30670352] ; Chinese Academy of Sciences[0629221 C01] ; National Key Technology R&D Program of China[2006BAC10B020]
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000261964500002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1061]
专题	中国科学院武汉植物园
通讯作者	Liu, Guihua
作者单位	1.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wenzhi,Zhang, Quanfa,Liu, Guihua. Seed banks of a river-reservoir wetland system and their implications for vegetation development[J]. AQUATIC BOTANY,2009,90(1):7-12.
APA	Liu, Wenzhi,Zhang, Quanfa,&Liu, Guihua.(2009).Seed banks of a river-reservoir wetland system and their implications for vegetation development.AQUATIC BOTANY,90(1),7-12.
MLA	Liu, Wenzhi,et al."Seed banks of a river-reservoir wetland system and their implications for vegetation development".AQUATIC BOTANY 90.1(2009):7-12.