Structure, pattern and mechanisms of formation of seed banks in sand dune systems in northeastern Inner Mongolia, China

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	Structure, pattern and mechanisms of formation of seed banks in sand dune systems in northeastern Inner Mongolia, China
	Yan, QL ; Liu, ZM ; Zhu, JJ ; Luo, YM ; Wang, HM ; Jiang, DM
刊名	PLANT AND SOIL
	2005
卷号	277 期号:1-2 页码:175-184
关键词	active sand dune ecotone restoration seed bank stabilized sand dune wind action
ISSN号	0032-079X
通讯作者	Liu, ZM, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
中文摘要	A comparison of structure and pattern of the soil seed bank was made between active and stabilized sand dunes in northeastern Inner Mongolia, China. The objective of this paper was to determine the significance of seed bank in vegetation restoration of sand dunes. The results showed that (1) average seed density decreased from stabilized sand dune to interdune lowland of stabilized sand dune, to interdune lowland of active sand dune, and to active sand dune; (2) horizontally, along the transect from interdune lowland to ecotone and to sand dune top, a 'V' shaped pattern was presented in the active dune system, and a reverse 'V' shaped pattern in the stabilized sand dune system; (3) vertically, the proportion (accounting for the total seeds) of seeds found in 0-20 mm soil profile decreased from stabilized sand dune to interdune lowland of stabilized sand dune, to interdune lowland of active sand dune, and to active sand dune. The same order was also found in 20-50 mm and 50-100 mm soil profiles; (4) the Sokal and Sneath similarity indices in the species-composition between soil seed bank and above-ground vegetation were ranked as: the stabilized sand dune (24%) > the interdune lowland of active sand dune (21%) > the interdune lowland of stabilized sand dune (18%) > the active sand dune (5%); and (5) vegetation restoration of active sand dunes depends on the dispersal of seeds from nearby plant communities on the interdune lowlands. Much effort must be made to preserve the lowlands, as lowlands are the most important seed reservoir in the active sand dune field.
学科主题	Agronomy; Plant Sciences; Soil Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000233527700016
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55031]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Yan, QL,Liu, ZM,Zhu, JJ,et al. Structure, pattern and mechanisms of formation of seed banks in sand dune systems in northeastern Inner Mongolia, China[J]. PLANT AND SOIL,2005,277(1-2):175-184.
APA	Yan, QL,Liu, ZM,Zhu, JJ,Luo, YM,Wang, HM,&Jiang, DM.(2005).Structure, pattern and mechanisms of formation of seed banks in sand dune systems in northeastern Inner Mongolia, China.PLANT AND SOIL,277(1-2),175-184.
MLA	Yan, QL,et al."Structure, pattern and mechanisms of formation of seed banks in sand dune systems in northeastern Inner Mongolia, China".PLANT AND SOIL 277.1-2(2005):175-184.