气候变化领域集成服务门户(CCPortal): Elevated temperature and CO2 interactively modulate sexual competition and ecophysiological responses of dioecious Populus cathayana

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DOI	10.1016/j.foreco.2020.118747
	Elevated temperature and CO2 interactively modulate sexual competition and ecophysiological responses of dioecious Populus cathayana
	Chen J.; Liu Q.; Yu L.; Korpelainen H.; Niinemets Ü.; Li C.
发表日期	2021
ISSN	0378-1127
卷号	481
英文摘要	It remains unclear how global climate change affects dioecious plants that may be especially vulnerable to climate drivers, because they often exhibit skewed sex ratios and eco-physiological specialization in certain microhabitats. In this study, female and male saplings of Populus cathayana were employed to explore sex-specific responses and the effects of sexual competition under elevated temperature (ET), elevated CO2 (EC) and combination of elevated temperature and CO2 (ETC). The results demonstrated that elevated temperature and CO2 interactively modulated sexual competition and responses of P. cathayana. Moreover, competition patterns affected the eco-physiological responses of P. cathayana to climate change treatments. Under both intra- and inter-sexual competition, biomass components, photosynthetic parameters and carbon-related metabolites of females were most strongly affected by ET, while males exhibited a higher photosynthesis and resource use efficiency, and a better biomass accumulation and carbon balance mechanism when compared to females when experiencing intra-sexual competition under EC. The competitive pressure of females on males in inter-sexual competition was intensified by ET, while it was alleviated by ETC. We conclude that climate change drivers and competition patterns differently regulate the sex-specific responses and competitive intensity of males and females, which may have a crucial effect on sex ratios, spatial sexual segregation, biomass production and carbon sequestration in dioecious species in the future. © 2020 Elsevier B.V.
英文关键词	Climate change; Nitrogen use efficiency; Non-structural carbohydrates; Photosynthetic capacity; Sexual competition; Structural carbohydrates
语种	英语
scopus关键词	Biomass; Carbon; Carbon dioxide; Forestry; Metabolites; Physiological models; Physiology; Biomass accumulation; Biomass productions; Carbon sequestration; Competitive pressure; Elevated temperature; Global climate changes; Photosynthetic parameters; Physiological response; Climate change; bioaccumulation; biomass; carbon dioxide; carbon sequestration; climate change; competition (ecology); deciduous tree; dioecy; ecophysiology; female; sapling; sex ratio; Biomass; Carbon Dioxide; Competition; Forestry; Physiology; Sex; Temperature; Populus cathayana
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154788
作者单位	Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang, 621000, China; College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China; Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, P.O. Box 27FI-00014, Finland; Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu, 51006, Estonia; Estonian Academy of Sciences, Kohtu 6, Tallinn, 10130, Estonia
推荐引用方式 GB/T 7714	Chen J.,Liu Q.,Yu L.,et al. Elevated temperature and CO2 interactively modulate sexual competition and ecophysiological responses of dioecious Populus cathayana[J],2021,481.
APA	Chen J.,Liu Q.,Yu L.,Korpelainen H.,Niinemets Ü.,&Li C..(2021).Elevated temperature and CO2 interactively modulate sexual competition and ecophysiological responses of dioecious Populus cathayana.Forest Ecology and Management,481.
MLA	Chen J.,et al."Elevated temperature and CO2 interactively modulate sexual competition and ecophysiological responses of dioecious Populus cathayana".Forest Ecology and Management 481(2021).