Spatiotemporal pattern of seed bank in the annual psammophyte Agriophyllum squarrosum Moq. (Chenopodiaceae) on the active sand dunes of northeastern Inner Mongolia, China

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	Spatiotemporal pattern of seed bank in the annual psammophyte Agriophyllum squarrosum Moq. (Chenopodiaceae) on the active sand dunes of northeastern Inner Mongolia, China
	Ma, JL; Liu, ZM; Liu, ZM, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China
刊名	PLANT AND SOIL
	2008
卷号	311 期号:1-2 页码:97-107
关键词	Canopy-stored Seeds Depth Dune Position Sand Burial Wind Erosion Windy Season
ISSN号	0032-079X
英文摘要	The seed banks of active sand dunes are critical for the adaptation of psammophytes to unstable habitats. However, existing reports have failed to effectively elucidate the spatiotemporal structure of these seed banks and the factors regulating them. The seed bank pattern of the annual psammophyte Agriophyllum squarrosum Moq. in active sand dunes was studied by taking into consideration the time, the depth of the soil profile, dune positions, and seed bank type (released seed bank, belowground and aboveground canopy seed banks). Most canopy-stored seeds were unburied before the following March of the maturation year; however, they were buried from March to May. The seed bank mainly comprised the aboveground canopy-stored seeds from September of the year of seed maturation to the following March. The seed bank was concentrated in the surface soil layers (0-10 cm) from March of the year following seed maturation to June and was concentrated in the deep soil layers (10-50 cm) after June. The seed bank in the lower leeward slope tended to be larger than those in the other dune positions. The canopy-stored seed:released seed ratio differed between dune positions. The findings of this study are: (1) sand burial and wind erosion play key roles in shaping the spatiotemporal pattern of the seed banks of active sand dunes, and (2) delayed seed release may be a major factor regulating the spatiotemporal pattern of the seed banks of certain psammophytes.
学科主题	Agronomy ; Plant Sciences ; Soil Science
语种	英语
WOS记录号	WOS:000259042800009
资助机构	National Nature Science Foundation of China [40671119]; National Key Technologies Research and Development Program [2006BAC01A12]; Initiative Project of Shenyang Institute of Applied Ecology in Chinese Academy of Sciences [06LYQY4001]
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54391]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Liu, ZM, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, JL,Liu, ZM,Liu, ZM, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China. Spatiotemporal pattern of seed bank in the annual psammophyte Agriophyllum squarrosum Moq. (Chenopodiaceae) on the active sand dunes of northeastern Inner Mongolia, China[J]. PLANT AND SOIL,2008,311(1-2):97-107.
APA	Ma, JL,Liu, ZM,&Liu, ZM, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China.(2008).Spatiotemporal pattern of seed bank in the annual psammophyte Agriophyllum squarrosum Moq. (Chenopodiaceae) on the active sand dunes of northeastern Inner Mongolia, China.PLANT AND SOIL,311(1-2),97-107.
MLA	Ma, JL,et al."Spatiotemporal pattern of seed bank in the annual psammophyte Agriophyllum squarrosum Moq. (Chenopodiaceae) on the active sand dunes of northeastern Inner Mongolia, China".PLANT AND SOIL 311.1-2(2008):97-107.