干旱区生态环境知识资源中心(Arid): Drought Stress Might Induce Sexual Spatial Segregation in Dioecious Populus euphratica-Insights from Long-Term Water Use Efficiency and Growth Rates

Arid

DOI	10.3390/biology13050318
	Drought Stress Might Induce Sexual Spatial Segregation in Dioecious Populus euphratica-Insights from Long-Term Water Use Efficiency and Growth Rates
	Zhou, Honghua; Ye, Zhaoxia; Yang, Yuhai; Zhu, Chenggang
通讯作者	Zhu, CG
来源期刊	BIOLOGY-BASEL
EISSN	2079-7737
出版年	2024
卷号	13 期号:5
英文摘要	P. euphratica stands as the pioneering and dominant tree within desert riparian forests in arid and semi-arid regions. The aim of our work was to reveal why dioecious P. euphratica in natural desert riparian forests in the lower Tarim River exhibits sexual spatial distribution differences combined with field investigation, tree ring techniques, isotope analysis techniques, and statistical analyses. The results showed that P. euphratica was a male-biased population, with the operational sex ratio (OSR) exhibiting spatial distribution differences to variations in drought stress resulting from groundwater depth change. The highest OSR was observed under mild drought stress (groundwater depth of 6-7 m), and it was reduced under non-drought stress (groundwater depth below 6 m) or severe drought stress (groundwater depth exceeding 7 m). As drought stress escalated, the degradation and aging of the P. euphratica forest became more pronounced. Males exhibited significantly higher growth rates and WUEi than females under mild drought stress. However, under severe drought stress, males' growth rates significantly slowed down, accompanied by significantly lower WUEi than in females. This divergence determined the sexual spatial segregation of P. euphratica in the natural desert riparian forests of the lower Tarim River. Furthermore, the current ecological water conveyance project (EWCP) in the lower Tarim River was hard to fundamentally reverse the degradation and aging of the P. euphratica forest due to inadequate population regeneration. Consequently, we advocated for an optimized ecological water conveyance mode to restore, conserve, and rejuvenate natural P. euphratica forests.
英文关键词	ecological water conveyance groundwater depth change annual growth rate intrinsic water use efficiency lower Tarim River
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:001233552100001
WOS关键词	DESERT RIPARIAN FORESTS ; LOWER REACHES ; TARIM RIVER ; PLANTS ; RESPONSES ; PARAMETERS ; VEGETATION ; DELTOIDES ; SALINITY ; CLONES
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403028
推荐引用方式 GB/T 7714	Zhou, Honghua,Ye, Zhaoxia,Yang, Yuhai,et al. Drought Stress Might Induce Sexual Spatial Segregation in Dioecious Populus euphratica-Insights from Long-Term Water Use Efficiency and Growth Rates[J],2024,13(5).
APA	Zhou, Honghua,Ye, Zhaoxia,Yang, Yuhai,&Zhu, Chenggang.(2024).Drought Stress Might Induce Sexual Spatial Segregation in Dioecious Populus euphratica-Insights from Long-Term Water Use Efficiency and Growth Rates.BIOLOGY-BASEL,13(5).
MLA	Zhou, Honghua,et al."Drought Stress Might Induce Sexual Spatial Segregation in Dioecious Populus euphratica-Insights from Long-Term Water Use Efficiency and Growth Rates".BIOLOGY-BASEL 13.5(2024).