气候变化领域集成服务门户(CCPortal): Research on the water use efficiency and foliar nutrient status of Populus euphratica and Tamarix ramosissima in the extreme arid region of China

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DOI	10.1007/s12665-010-0643-y
	Research on the water use efficiency and foliar nutrient status of Populus euphratica and Tamarix ramosissima in the extreme arid region of China
	Cao, Sheng Kui; Feng, Qi; Su, Yong Hong; Chang, Zong Qiang; Xi, Hai Yang
发表日期	2011
ISSN	1866-6280
EISSN	1866-6299
卷号	62 期号:8
英文摘要	Seasonal variations in foliar stable carbon composition (delta C-13) and nitrogen (N), phosphorus (P) and potassium (K) concentrations of Populus euphratica Olivier and Tamarix ramosissima Ledeb, as well as correlations between foliar delta C-13 values and N, P and K concentrations were studied in the Ejina oasis in the lower reaches of the Heihe River, northwestern China. Foliar delta C-13 values, and P and K concentrations significantly differed between species. Foliar delta C-13 signatures in T. ramosissima were significantly more enriched than those in P. euphratica, but P and K concentrations of P. euphratica were higher. The seasonal variations and patterns of these were similar. The total foliar delta C-13 values and N, P and K concentrations in both P. euphratica and T. ramosissima showed a descending trend. There were significantly positive correlations between foliar delta C-13 values and N and P concentration of both P. euphratica and T. ramosissima. For the relationship between foliar delta C-13 and K concentration, there appeared oppositely positive and negative correlations in P. euphratica and T. ramosissima, respectively, but they were not significant. The simple positive correlations of delta C-13-P% and delta C-13-N% suggested that N and P in P. euphratica and T. ramosissima behave in a similar manner. This study also showed that there were nutrient deficiencies; N and P nutriments were the co-limiting factors in P. euphratica, while it was P nutriment in T. ramosissima.
关键词	Stable carbon isotope composition (delta C-13)Correlation Foliar nutriment Populus euphratica Olivier Tamarix ramosissima Ledeb Extreme arid area
学科领域	Environmental Sciences & Ecology; Geology; Water Resources
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
来源期刊	ENVIRONMENTAL EARTH SCIENCES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111638
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Div Hydrol & Water Land Resources Cold & Arid Reg, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cao, Sheng Kui,Feng, Qi,Su, Yong Hong,et al. Research on the water use efficiency and foliar nutrient status of Populus euphratica and Tamarix ramosissima in the extreme arid region of China[J]. 中国科学院西北生态环境资源研究院,2011,62(8).
APA	Cao, Sheng Kui,Feng, Qi,Su, Yong Hong,Chang, Zong Qiang,&Xi, Hai Yang.(2011).Research on the water use efficiency and foliar nutrient status of Populus euphratica and Tamarix ramosissima in the extreme arid region of China.ENVIRONMENTAL EARTH SCIENCES,62(8).
MLA	Cao, Sheng Kui,et al."Research on the water use efficiency and foliar nutrient status of Populus euphratica and Tamarix ramosissima in the extreme arid region of China".ENVIRONMENTAL EARTH SCIENCES 62.8(2011).