干旱区生态环境知识资源中心(Arid): Response of two dominant woody species to groundwater depth at the transition zone between desert and oasis

Arid

DOI	10.1016/j.ecolind.2024.112278
	Response of two dominant woody species to groundwater depth at the transition zone between desert and oasis
	Xue, Wu; Yan, Li; Gui-Qing, Xu
通讯作者	Yan, L
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2024
卷号	166
英文摘要	Haloxylon species are traditionally considered as dominant desert plants across Central Asia, but recent studies based on stable isotope showed that they are groundwater-dependent, however, their tolerance strategies and limits to groundwater decline remain unknown. Therefore, we adopted the method of spatial-for-temporal, took Haloxylon ammodendron and Haloxylon. persicum in Gurbantunggut Desert as study objects, combined field survey with model estimation exploring their density, growth, age, and biomass characteristics along a natural groundwater gradient, aiming to reveal their responses to groundwater depth changes and predict future development. The results showed that: (1) With the decline of groundwater depth, the population density, and plant height, canopy width, and basal diameter of two species all decreased significantly. (2)When the groundwater depth descended to lower than 12 m, H. persicum replaced H. ammodendron becoming the more dominant species. (3) As the groundwater depth declined, adult individual percentage increased in the population of H. ammodendron, but H. persicum was still dominated by young trees. (4) The above-ground, belowground and total biomass of two species were all going down with the lowering of groundwater table, H. ammodendron exhibited a greater reduction, while the root-to-shoot ratio of H. persicum increased significantly (p < 0.05). These findings indicated that continuous decline in groundwater depth greatly limited the survival and development of H. ammodendron, the allocation regulation of H. persicum helped to cushion the adverse effects partially. In the long run, decreased accessibility of groundwater would be not conducive to the exertion of their ecological functions. These findings could provide a scientific basis for the protection and management of these valuable species.
英文关键词	Desert plants Haloxylon Groundwater depth Acclimatization
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001287682000001
WOS关键词	POPULUS-EUPHRATICA ; HYDRAULIC ARCHITECTURE ; TAMARIX-RAMOSISSIMA ; PATTERNS ; HALOXYLON ; WOODLANDS ; VEGETATION ; CHINENSIS ; DIVERSITY ; GRADIENT
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403424
推荐引用方式 GB/T 7714	Xue, Wu,Yan, Li,Gui-Qing, Xu. Response of two dominant woody species to groundwater depth at the transition zone between desert and oasis[J],2024,166.
APA	Xue, Wu,Yan, Li,&Gui-Qing, Xu.(2024).Response of two dominant woody species to groundwater depth at the transition zone between desert and oasis.ECOLOGICAL INDICATORS,166.
MLA	Xue, Wu,et al."Response of two dominant woody species to groundwater depth at the transition zone between desert and oasis".ECOLOGICAL INDICATORS 166(2024).