气候变化领域集成服务门户(CCPortal): Thermal sensitivity across forest vertical profiles: patterns, mechanisms, and ecological implications

CCPortal

DOI	10.1111/nph.18539
	Thermal sensitivity across forest vertical profiles: patterns, mechanisms, and ecological implications
	Vinod, Nidhi; Slot, Martijn; McGregor, Ian R.; Ordway, Elsa M.; Smith, Marielle N.; Taylor, Tyeen C.; Sack, Lawren; Buckley, Thomas N.; Anderson-Teixeira, Kristina J.
发表日期	2023
ISSN	0028-646X
EISSN	1469-8137
起始页码	22
结束页码	47
卷号	237 期号:1
英文摘要	Rising temperatures are influencing forests on many scales, with potentially strong variation vertically across forest strata. Using published research and new analyses, we evaluate how microclimate and leaf temperatures, traits, and gas exchange vary vertically in forests, shaping tree, and ecosystem ecology. In closed-canopy forests, upper canopy leaves are exposed to the highest solar radiation and evaporative demand, which can elevate leaf temperature (T-leaf), particularly when transpirational cooling is curtailed by limited stomatal conductance. However, foliar traits also vary across height or light gradients, partially mitigating and protecting against the elevation of upper canopy T-leaf. Leaf metabolism generally increases with height across the vertical gradient, yet differences in thermal sensitivity across the gradient appear modest. Scaling from leaves to trees, canopy trees have higher absolute metabolic capacity and growth, yet are more vulnerable to drought and damaging T-leaf than their smaller counterparts, particularly under climate change. By contrast, understory trees experience fewer extreme high T-leaf's but have fewer cooling mechanisms and thus may be strongly impacted by warming under some conditions, particularly when exposed to a harsher microenvironment through canopy disturbance. As the climate changes, integrating the patterns and mechanisms reviewed here into models will be critical to forecasting forest-climate feedback.
英文关键词	climate change; ecosystem; forest; gas exchange; leaf temperature; leaf traits; microclimate; vertical gradients
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000900765300006
来源期刊	NEW PHYTOLOGIST
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281173
作者单位	Smithsonian Institution; Smithsonian National Zoological Park & Conservation Biology Institute; University of California System; University of California Los Angeles; Smithsonian Institution; Smithsonian Tropical Research Institute; North Carolina State University; Harvard University; Michigan State University; Bangor University; University of Michigan System; University of Michigan; University of California System; University of California Davis
推荐引用方式 GB/T 7714	Vinod, Nidhi,Slot, Martijn,McGregor, Ian R.,et al. Thermal sensitivity across forest vertical profiles: patterns, mechanisms, and ecological implications[J],2023,237(1).
APA	Vinod, Nidhi.,Slot, Martijn.,McGregor, Ian R..,Ordway, Elsa M..,Smith, Marielle N..,...&Anderson-Teixeira, Kristina J..(2023).Thermal sensitivity across forest vertical profiles: patterns, mechanisms, and ecological implications.NEW PHYTOLOGIST,237(1).
MLA	Vinod, Nidhi,et al."Thermal sensitivity across forest vertical profiles: patterns, mechanisms, and ecological implications".NEW PHYTOLOGIST 237.1(2023).