干旱区生态环境知识资源中心(Arid): Plant water resource partitioning and xylem-to-leaf deuterium enrichment in Lanzhou, northwest China

Arid

DOI	10.2166/ws.2020.045
	Plant water resource partitioning and xylem-to-leaf deuterium enrichment in Lanzhou, northwest China
	Du, Qinqin; Zhang, Mingjun; Wang, Shengjie; Argiriou, Athanassios A.; Che, Cunwei; Zhao, Peipei; Ma, Zhuanzhuan; Su, Pengyan
通讯作者	Zhang, MJ
来源期刊	WATER SUPPLY
ISSN	1606-9749
EISSN	1607-0798
出版年	2020
卷号	20 期号:3 页码:1127-1140
英文摘要	Lanzhou lies at the western Loess Plateau, China, and has a typical semi-arid temperate continental climate. Plants in this area are exposed to a prolonged dry season. In this study, we measured the stable isotopes of hydrogen (delta D) and oxygen (delta O-18) of the local precipitation, river water, soil water, plant xylem water, and leaf water at four sampling sites during the 2016 growing season. Our results showed that plants relied mostly on wet season precipitation at sites N1, N2, and N3 because this recharged the soil after the long dry season. Leaf phenology had a significant effect on evaporation distance (ED) value, and evergreen plants have adapted to water tapping from deep soil water sources during the dry season. The ED values of trees and shrubs were quite different in the dry season, indicating water competition among different plant species was mitigated due to water resource partitioning. Moreover, plants at site N4 relied on a water source admixed with river water throughout the whole growing season. The mean value of xylem-to-leaf water deuterium enrichment (e(l/x)) was -0.91 +/- 0.36 parts per thousand over all plant species, seasons, and sampling sites. Plant species, leaf phenology, and seasons were found to be the primary factors influencing the e(l/x), while growth form and elevation had negligible effects.
英文关键词	deuterium enrichment Lanzhou plant stable isotope water resource partitioning
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000537271000034
WOS关键词	STABLE-ISOTOPES ; SOIL-WATER ; TREES ; HYPOTHESIS ; PATTERNS
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324594
作者单位	[Du, Qinqin; Zhang, Mingjun; Wang, Shengjie; Che, Cunwei; Zhao, Peipei; Ma, Zhuanzhuan; Su, Pengyan] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Argiriou, Athanassios A.] Univ Patras, Phys Dept, Lab Atmospher Phys, GR-26500 Patras, Greece
推荐引用方式 GB/T 7714	Du, Qinqin,Zhang, Mingjun,Wang, Shengjie,et al. Plant water resource partitioning and xylem-to-leaf deuterium enrichment in Lanzhou, northwest China[J],2020,20(3):1127-1140.
APA	Du, Qinqin.,Zhang, Mingjun.,Wang, Shengjie.,Argiriou, Athanassios A..,Che, Cunwei.,...&Su, Pengyan.(2020).Plant water resource partitioning and xylem-to-leaf deuterium enrichment in Lanzhou, northwest China.WATER SUPPLY,20(3),1127-1140.
MLA	Du, Qinqin,et al."Plant water resource partitioning and xylem-to-leaf deuterium enrichment in Lanzhou, northwest China".WATER SUPPLY 20.3(2020):1127-1140.