干旱区生态环境知识资源中心(Arid): Seasonal dynamics of N:P ratio stoichiometry and Ca fraction for four dominant plants in the Alxa Desert

Arid

DOI	10.3724/SP.J.1226.2018.00326
	Seasonal dynamics of N:P ratio stoichiometry and Ca fraction for four dominant plants in the Alxa Desert
	Guo, JianTan; He, XingDong; Jing, HongJuan; Liang, YuTing
通讯作者	He, XD
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2018
卷号	10 期号:4 页码:326-332
英文摘要	Desert plants take on unique physiologically adaptive mechanisms in response to an adverse environment. In this study, we determined the concentrations of leaf nitrogen (N), phosphorus (P), and calcium (Ca) fraction for dominant species of Artemisia ordosica, A. frigida, Calligonum mongolicum, and Oxytropis aciphylla in the Alxa Desert and discussed seasonal changes of their leaf N:P ratio and Ca fraction. The results showed that, from May to September, the N:P ratios of A. ordosica and C. mongolicum gradually and significantly increased, while those of A. frigida, and O. aciphylla had an increase trend that was not significant; the physiologically active Ca of A. ordosica and A. frigida increased significantly, while that of C. mongolicum and O. aciphylla decreased significantly. The physiologically inert calcium of C. mongolicum increased extremely significantly, while that of others was not significant. There was a significantly positive correlation between the N:P ratio and physiologically active Ca for A. ordosica, and the N:P ratio was significantly and negatively correlated with physiologically active Ca for O. aciphylla. These findings revealed that the physiological regulation mechanism was different for the plants either in earlier stage or later stage of plant-community succession.
英文关键词	the Alxa Desert N:P ratio Ca fraction seasonal dynamic
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000457528000006
WOS关键词	PHOSPHORUS STOICHIOMETRY ; LEAF NITROGEN ; P RATIOS ; CALCIUM FRACTIONS ; GROWTH ; FOREST ; LAND
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333271
作者单位	[Guo, JianTan; He, XingDong; Jing, HongJuan; Liang, YuTing] Nankai Univ, Coll Life Sci, 4th Teaching Bldg, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Guo, JianTan,He, XingDong,Jing, HongJuan,et al. Seasonal dynamics of N:P ratio stoichiometry and Ca fraction for four dominant plants in the Alxa Desert[J],2018,10(4):326-332.
APA	Guo, JianTan,He, XingDong,Jing, HongJuan,&Liang, YuTing.(2018).Seasonal dynamics of N:P ratio stoichiometry and Ca fraction for four dominant plants in the Alxa Desert.SCIENCES IN COLD AND ARID REGIONS,10(4),326-332.
MLA	Guo, JianTan,et al."Seasonal dynamics of N:P ratio stoichiometry and Ca fraction for four dominant plants in the Alxa Desert".SCIENCES IN COLD AND ARID REGIONS 10.4(2018):326-332.