气候变化领域集成服务门户(CCPortal): Relationships between foliar carbon isotope discrimination with potassium concentration and ash content of the riparian plants in the extreme arid region of China

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DOI	10.1007/s11099-009-0075-7
	Relationships between foliar carbon isotope discrimination with potassium concentration and ash content of the riparian plants in the extreme arid region of China
	Cao, S. K.; Feng, Q.; Si, J. H.; Su, Y. H.; Chang, Z. Q.; Xi, H. Y.
发表日期	2009
ISSN	0300-3604
EISSN	1573-9058
起始页码	499
结束页码	509
卷号	47 期号:4
英文摘要	Carbon isotope discrimination (Delta) has been proposed as an indirect estimation criterion for water use efficiency in C-3 plants. Because of the higher cost for Delta analysis, ash content or K concentration has been proposed as an alternative criterion for Delta in many species. In five typical habitats of the extreme arid Ejina desert oasis in northwest of China, the seasonal variations of foliar delta, ash content, and potassium (K) concentration were researched in two constructive desert riparian plants (Populus euphratica Olivier, Tamarix ramosissima Ledeb). The correlations of foliar Delta with ash content and K concentration in both species were also examined to evaluate the feasibility of the foliar ash content and K concentration as surrogates of Delta in P. euphratica and T. ramosissima. Results showed that there were significant effects of plant species, habitats and growth season on foliar Delta, ash content, and K concentration. Foliar Delta and K concentration in P. euphratica were significantly higher than those in T. ramosissima, whereas, the ash content was reverse. Among habitats, the trends of delta signatures in both P. euphratica and T. ramosissima were similar, delta values and ash content in both species were the lowest in the dune. Both in the Gobi and dune sites, K concentration in P. euphratica and T. ramosissima was different. In the whole growth period, foliar Delta values and ash content in both species were gradually increased, but K concentration was decreased. Ash content was significantly and positively related to delta in both P. euphratica and T. ramosissima. However, significantly negative correlations between foliar delta and K concentration as well as between ash content and K in P. euphratica were found. In T. ramosissima, the relationship was positive but very weak.
英文关键词	ash; carbon isotope discrimination; desert riparian forest; extreme arid area; Populus euphratica Olivier; potassium concentration; Tamarix ramosissima Ledeb
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS关键词	WATER-USE EFFICIENCY ; TAMARIX-RAMOSISSIMA STANDS ; POPULUS-EUPHRATICA ; GRAIN-YIELD ; LOWER REACHES ; MINERAL-CONTENT ; GAS-EXCHANGE ; HEIHE RIVER ; DURUM-WHEAT ; DESERT
WOS记录号	WOS:000275416900003
来源期刊	PHOTOSYNTHETICA
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/239387
作者单位	[Cao, S. K.; Feng, Q.; Si, J. H.; Su, Y. H.; Chang, Z. Q.; Xi, H. Y.] Chinese Acad Sci, Div Hydrol & Water Land Resources, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China; [Cao, S. K.] Qinghai Normal Univ, Biol & Geog Sci Coll, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Cao, S. K.,Feng, Q.,Si, J. H.,et al. Relationships between foliar carbon isotope discrimination with potassium concentration and ash content of the riparian plants in the extreme arid region of China[J]. 中国科学院西北生态环境资源研究院,2009,47(4).
APA	Cao, S. K.,Feng, Q.,Si, J. H.,Su, Y. H.,Chang, Z. Q.,&Xi, H. Y..(2009).Relationships between foliar carbon isotope discrimination with potassium concentration and ash content of the riparian plants in the extreme arid region of China.PHOTOSYNTHETICA,47(4).
MLA	Cao, S. K.,et al."Relationships between foliar carbon isotope discrimination with potassium concentration and ash content of the riparian plants in the extreme arid region of China".PHOTOSYNTHETICA 47.4(2009).