Leaf thermal regulation strategies of canopy species across four vegetation types along a temperature and precipitation gradient

doi:10.1016/j.agrformet.2023.109766

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	Leaf thermal regulation strategies of canopy species across four vegetation types along a temperature and precipitation gradient
	Zhou,Yingying; Kitudom,Nawatbhrist; Fauset,Sophie; Slot,Martijn; Fan,Zexin; Wang,Jianping; Liu,Weiwei; Lin,Hua
	2023
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	1873-2240
卷号	343 页码:109766
摘要	The ecophysiological processes of leaves are more related to leaf temperature (Tl) than air temperature (Ta). Transpiration and leaf physical traits enable plants to maintain Tl within a thermal range. However, it is challenging to quantitatively study leaf thermal regulation strategies, due to the complex interaction between thermal effects of transpiration and leaf physical traits. We utilized a 3-T method that compares Tl, Ta, and Tn (the temperature of non-transpiring leaves) investigate thermal regulation strategies of dominant canopy species in four vegetation types, including a savanna woodland, a tropical rain forest, a subtropical evergreen broadleaved forest, and a temperate mixed forest. Our results indicate that the difference between Tl and Ta decreased as the site mean temperature increased. Transpirational cooling was strongest in savanna woodland, and decreased from the hottest site to the coldest site. Without transpiration, sun-exposed leaves were consistently hotter under sunshine than air. This physical warming effect increased from the hottest site to the coldest site. We observed leaf area, water content and leaf angle played a significant role in physical thermal regulation. The present research quantitatively measured leaf thermal regulation strategies across a temperature and precipitation gradient, which advances our understanding of how plants adapt to their thermal environments.
关键词	Leaf temperature Leaf traits Physical thermal effect Transpirational cooling Thermal regulation Thermal response PHOTOSYNTHETIC THERMOTOLERANCE STOMATAL CONDUCTANCE TRANSPIRATION TRAITS INCREASE MODELS PLANTS
DOI	10.1016/j.agrformet.2023.109766
收录类别	SCI
WOS记录号	WOS:001092600000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75578
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Zhou,Yingying,Kitudom,Nawatbhrist,Fauset,Sophie,et al. Leaf thermal regulation strategies of canopy species across four vegetation types along a temperature and precipitation gradient[J]. AGRICULTURAL AND FOREST METEOROLOGY,2023,343:109766.
APA	Zhou,Yingying.,Kitudom,Nawatbhrist.,Fauset,Sophie.,Slot,Martijn.,Fan,Zexin.,...&Lin,Hua.(2023).Leaf thermal regulation strategies of canopy species across four vegetation types along a temperature and precipitation gradient.AGRICULTURAL AND FOREST METEOROLOGY,343,109766.
MLA	Zhou,Yingying,et al."Leaf thermal regulation strategies of canopy species across four vegetation types along a temperature and precipitation gradient".AGRICULTURAL AND FOREST METEOROLOGY 343(2023):109766.

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