干旱区生态环境知识资源中心(Arid): Stable isotopic analysis of water utilization characteristics of four xerophytic shrubs in the Hobq Desert, Northern China

Arid

DOI	10.3389/fpls.2023.1103789
	Stable isotopic analysis of water utilization characteristics of four xerophytic shrubs in the Hobq Desert, Northern China
	Wu, Yongsheng; Liao, Zilong; Yu, Xiangqian; Qiang, Yin; Hui, Wang; Li, Gao
通讯作者	Liao, ZL
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2023
卷号	14
英文摘要	Quantitative identification of water utilization characteristics of xerophytic shrubs is an important prerequisite for the selection and optimization of a regional artificial sand-fixing vegetation system. In this study, a hydrogen (delta D) stable isotope technique was used to study the changes in water use characteristics of four typical xerophytic shrubs, Caragana korshinskii, Salix psammophila, Artemisia ordosica, and Sabina vulgaris in the Hobq Desert under light (4.8 mm after 1 and 5 days) and heavy (22.4 mm after 1 and 8 days) rainfall events. Under light rainfall, C. korshinskii and S. psammophila primarily used the 80-140 cm layer of soil water (37-70%) and groundwater (13-29%), and the water use characteristics did not change significantly after the light rainfall event. However, the utilization ratio of A. ordosica to soil water in the 040 cm layer increased from less than 10% on the first day after rain to more than 97% on the fifth day after rain, whereas the utilization ratio of S. vulgaris to soil water in the 0-40 cm layer also increased from 43% to nearly 60%. Under heavy rainfall, C. korshinskii and S. psammophila still used the 60-140 cm layer (56-99%) and groundwater (similar to 15%), while the main water utilization depth of A. ordosica and S. vulgaris expanded to 0-100 cm. Based on the above results, C. korshinskii and S. psammophila primarily use the soil moisture of the 80-140 cm layer and groundwater, while A. ordosica and S. vulgaris use the soil moisture of the 0-100 cm layer. Therefore, the co-existence of A. ordosica and S. vulgaris will increase the competition between artificial sand-fixing plants, while the combination of the two plants with C. korshinskii and S. psammophila will avoid competition between artificial sand-fixing plants to some extent. This study provides important guidance for regional vegetation construction and sustainable management of an artificial vegetation system.
英文关键词	stable isotope water utilization water source xerophytic shrubs Hobq desert
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001013091400001
WOS关键词	PLANTS ; PRECIPITATION ; DESERTIFICATION ; ECOSYSTEMS ; VEGETATION ; PULSES ; OXYGEN ; TREES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396632
推荐引用方式 GB/T 7714	Wu, Yongsheng,Liao, Zilong,Yu, Xiangqian,et al. Stable isotopic analysis of water utilization characteristics of four xerophytic shrubs in the Hobq Desert, Northern China[J],2023,14.
APA	Wu, Yongsheng,Liao, Zilong,Yu, Xiangqian,Qiang, Yin,Hui, Wang,&Li, Gao.(2023).Stable isotopic analysis of water utilization characteristics of four xerophytic shrubs in the Hobq Desert, Northern China.FRONTIERS IN PLANT SCIENCE,14.
MLA	Wu, Yongsheng,et al."Stable isotopic analysis of water utilization characteristics of four xerophytic shrubs in the Hobq Desert, Northern China".FRONTIERS IN PLANT SCIENCE 14(2023).