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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论