Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China (SCI)
	Si J. H.; Feng Q.; Yu T. F.; Zhao C. Y.; Li W.
刊名	Environmental Monitoring and Assessment
	2015
卷号	187 期号:11 页码:15
英文摘要	Water use efficiency (WUE) is an important trait associated with plant acclimation caused by water deficits, and delta C-13 is a good surrogate of WUE under conditions of water deficits. Water deficiency also enhances the accumulation of compatible solutes in the leaves. In this study, variations in foliar delta C-13 values and main osmotic solutes were investigated. Those included total soluble sugar (TSS), sucrose, free proline, glycine betaine (GB), and inorganic ionic (K+, Ca2+, and Cl-) content of Populus euphratica for different groundwater depths in a Ejina desert riparian forest, China. Results indicated that foliar delta C-13 values in the P. euphratica for different groundwater depths ranged from -29.14 +/- 0.06 to -25.84 +/- 0.04%. Foliar delta C-13 signatures became richer as groundwater levels declined. TSS, sucrose, free proline, GB, and K+ were accumulated in P. euphratica foliage with developing plant growth and increasing groundwater depth. Ca2+ and Cl- content increased under stronger P. euphratica transpiration rates for shallower groundwater depths (1-2.5 m) and decreased for deeper groundwater depths (greater than 3.0 m). Moreover, correlations between delta C-13, osmotic solutes, and groundwater depths showed that the primary osmotic solutes were TSS, sucrose, proline, GB, and K+. Correlations also showed that delta C-13 was not only a useful measure for P. euphratica-integrated WUE but also could be used as an indicator reflecting some physiological osmotic indexes.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/27246]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Si J. H.,Feng Q.,Yu T. F.,et al. Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China (SCI)[J]. Environmental Monitoring and Assessment,2015,187(11):15.
APA	Si J. H.,Feng Q.,Yu T. F.,Zhao C. Y.,&Li W..(2015).Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China (SCI).Environmental Monitoring and Assessment,187(11),15.
MLA	Si J. H.,et al."Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China (SCI)".Environmental Monitoring and Assessment 187.11(2015):15.