干旱区生态环境知识资源中心(Arid): Adaptation of Nitraria sphaerocarpa to wind-blown sand environments at the edge of a desert oasis

Arid

DOI	10.1016/S1001-0742(07)60081-3
	Adaptation of Nitraria sphaerocarpa to wind-blown sand environments at the edge of a desert oasis
	LI Qiuyan; ZHAO Wenzhi; FANG Haiyan
来源期刊	Journal of Environmental Sciences
ISSN	1001-0742
出版年	2007
卷号	19 期号:4 页码:482-487
英文摘要	This study addresses the adaptation of Nitraria sphaerocarpa to blown sand at the edge of a desert oasis with regard to the aspects of soil seed banks, seedlings, and population. Horizontally, the total number of seeds per unit area decreased from the shrub canopy center to intershrub areas, and most seeds were found under shrub canopies. Vertically, the highest proportion of seeds was found at depths of 5-10 cm. The emergence percentage, seedling mass, and seedling height, which were significantly affected by both burial depth and seed size, were highest at the optimal burial depth of 2 cm, and decreased with increasing burial depth in each seed size-class. Although seedling mass was usually greatest for large seeds and least for small seeds at each burial depth, little difference was observed in seedling height at shallow burial depths of 0-3 cm. The population shows a patchy and discontinuous distribution pattern. Population height increases with increasing sand depth. Also the density increases with increasing depth of sand in the desert; however, there is a steady decrease when the depth of sand is more than 100 cm. This result indicates that the depth of sand that is most suitable for the growth of Nitraria sphaerocarpa is 100 cm. The size of the population is significantly correlated with the sand depth, which increases with increasing depth in the desert.
英文关键词	Nitraria sphaerocarpa soil seed bank seedling growth sand burial adaptation
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:2838971
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334940
作者单位	LI Qiuyan, Chinese Ecosystem Network Research Linze Inland River Basin Comprehensive Research Station,Laboratory of Hydrology and Applied Ecology,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; ZHAO Wenzhi, Chinese Ecosystem Network Research Linze Inland River Basin Comprehensive Research Station,Laboratory of Hydrology and Applied Ecology,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; FANG Haiyan, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
推荐引用方式 GB/T 7714	LI Qiuyan,ZHAO Wenzhi,FANG Haiyan. Adaptation of Nitraria sphaerocarpa to wind-blown sand environments at the edge of a desert oasis[J],2007,19(4):482-487.
APA	LI Qiuyan,ZHAO Wenzhi,&FANG Haiyan.(2007).Adaptation of Nitraria sphaerocarpa to wind-blown sand environments at the edge of a desert oasis.Journal of Environmental Sciences,19(4),482-487.
MLA	LI Qiuyan,et al."Adaptation of Nitraria sphaerocarpa to wind-blown sand environments at the edge of a desert oasis".Journal of Environmental Sciences 19.4(2007):482-487.