干旱区生态环境知识资源中心(Arid): Water use characteristics of different pioneer shrubs at different ages in western Chinese Loess Plateau: Evidence from δ2H offset correction

Arid

DOI	10.1007/s40333-022-0018-8
	Water use characteristics of different pioneer shrubs at different ages in western Chinese Loess Plateau: Evidence from δ2H offset correction
	Zhang, Yu; Zhang, Mingjun; Qu, Deye; Wang, Shengjie; Argiriou, Athanassios A.; Wang, Jiaxin; Yang, Ye
通讯作者	Zhang, MJ
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2022
卷号	14 期号:6 页码:653-672
英文摘要	Caragana korshinskii Kom. and Tamarix ramosissima Ledeb. are pioneer shrubs for water and soil conservation, and for windbreak and sand fixation in arid and semi-arid areas. Understanding the water use characteristics of different pioneer shrubs at different ages is of great importance for their survival when extreme rainfall occurs. In recent years, the stable isotope tracing technique has been used in exploring the water use strategies of plants. However, the widespread delta 2H offsets of stem water from its potential sources result in conflicting interpretations of water utilization of plants in arid and semi-arid areas. In this study, we used three sets of hydrogen and oxygen stable isotope data (delta H-2 and delta O-18, corrected delta H-2(_c1) based on SW-excess and delta O-18, and corrected delta H-2(_c2) based on -8.1 parts per thousand and delta O-18) as inputs for the MixSIAR model to explore the water use characteristics of C. korshinskii and T. ramosissima at different ages and in response to rainfall. The results showed that delta H-2(_c1) and delta O-18 have the best performance, and the contribution rate of deep soil water was underestimated because of delta H-2 offset. During the dry periods, C. korshinskii and T. ramosissima at different ages both obtained mostly water from deeper soil layers. After rainfall, the proportions of surface (0-10 cm) and shallow (10-40 cm) soil water for C. korshinskii and T. ramosissima at different ages both increased. Nevertheless, there were different response mechanisms of these two plants for rainfall. In addition, C. korshinskii absorbed various potential water sources, while T. ramosissima only used deep water. These flexible water use characteristics of C. korshinskii and T. ramosissima might facilitate the coexistence of plants once extreme rainfall occurs. Thus, reasonable allocation of different plants may be a good vegetation restoration program in western Chinese Loess Plateau.
英文关键词	stable isotope Caragana korshinskii Tamarix ramosissima water uptake pattern isotope depletion
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:000819409800005
WOS关键词	CARAGANA-KORSHINSKII ; FUNCTIONAL TYPES ; STABLE-ISOTOPES ; IN-DEPTH ; PLANTS ; PATTERNS ; PRECIPITATION ; TREES ; IDENTIFICATION ; TRANSPIRATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393323
推荐引用方式 GB/T 7714	Zhang, Yu,Zhang, Mingjun,Qu, Deye,et al. Water use characteristics of different pioneer shrubs at different ages in western Chinese Loess Plateau: Evidence from δ2H offset correction[J],2022,14(6):653-672.
APA	Zhang, Yu.,Zhang, Mingjun.,Qu, Deye.,Wang, Shengjie.,Argiriou, Athanassios A..,...&Yang, Ye.(2022).Water use characteristics of different pioneer shrubs at different ages in western Chinese Loess Plateau: Evidence from δ2H offset correction.JOURNAL OF ARID LAND,14(6),653-672.
MLA	Zhang, Yu,et al."Water use characteristics of different pioneer shrubs at different ages in western Chinese Loess Plateau: Evidence from δ2H offset correction".JOURNAL OF ARID LAND 14.6(2022):653-672.