IB-CAS  > 植被与环境变化国家重点实验室
Dynamic biotic controls of leaf thermoregulation across the diel timescale
Guo, Zhengfei; Yan, Zhengbing; Majcher, Bartosz Marek; Lee, Calvin K. F.; Zhao, Yingyi; Song, Guangqin; Wang, Bin1,2; Wang, Xin1,2; Deng, Yun2,3,4; Michaletz, Sean T.; Ryu, Youngryel6; Ashton, Louise Amy; Lam, Hon-Ming; Wong, Man Sing8; Liu, Lingli1,2; Wu, Jin9
2022
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
Volume315
AbstractLeaf thermoregulation and consequent leaf-to-air temperature difference (Delta T) are tightly linked to plant metabolic rates and health. Current knowledge mainly focus on the regulation of environmental conditions on Delta T, while an accurate assessment of biotic regulations with field data remains lacking. Here, we used a trait-based model that integrates a coupled photosynthesis-stomatal conductance model with a leaf energy balance model to explore how six leaf traits (i.e. leaf width, emissivity, visible and near-infrared light absorptance, photosynthetic capacity-Vc,max25, and stomatal slope-g1) regulate Delta T variability across the diel timescale. We evaluated the model with field observations collected from temperate to tropical forests. Our results show that: (1) leaf traits mediate large Delta T variability, with the noon-time trait-mediated Delta T variability reaching c. 15.0 degrees C; (2) leaf width, Vc,max25, and g1 are the three most important traits and their relative importance in Delta T regulation varies strongly across the diel timescale; and (3) model-derived trait-Delta T relationships match field observations that were collected close to either midday or midnight. These findings advance our understanding of biotic controls of leaf-level Delta T variability, highlighting a trait-based representation of leaf energy balance that can improve simulations of diverse leaf thermoregulation strategies across species and physiological responses to climate change.
KeywordLeaf-to-air temperature difference Plant functional traits Leaf energy balance Coupled photosynthesis-stomatal conductance model Trait-based modeling Global sensitivity analysis
Subject AreaAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
DOI10.1016/j.agrformet.2022.108827
Indexed BySCI
Language英语
WOS KeywordSTOMATAL CONDUCTANCE ; PHOTOSYNTHETIC CAPACITY ; FOREST PHOTOSYNTHESIS ; CO2 ASSIMILATION ; AIR-TEMPERATURE ; ENERGY-BALANCE ; VEGETATION ; MODEL ; WATER ; CANOPY
WOS Research AreaScience Citation Index Expanded (SCI-EXPANDED)
WOS IDWOS:000798576700006
PublisherELSEVIER
SubtypeArticle
Publication PlaceAMSTERDAM
EISSN1873-2240
Funding OrganizationNational Natural Science Foundation of China [31922090] ; Hong Kong Research Grants Council Early Career Scheme [27306020] ; Innovation and Technology Fund - State Key Laboratories in Hong Kong of Agrobiotechnology) of the HKSAR, China ; State Key Laboratories in Hong Kong of Agrobiotechnology of the HKSAR, China [202011159154] ; HKU seed fund for basic research [AOE/M-403/16] ; HKU 45th round PDF scheme ; Hong Kong Research Grants Council Area of Excellence Scheme [202011159154] ; General Research Fund [AOE/M-403/16] ; Research Institute for Sustainable Urban Development [15603920] ; Hong Kong Polytechnic University ; [1-BBWD]
Corresponding Author Emailjinwu@hku.hk
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/28899
Collection植被与环境变化国家重点实验室
Affiliation1.Univ Hong Kong, Sch Biol Sci, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Yuquan Rd, Beijing, Peoples R China
4.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China
5.Chinese Acad Sci, Natl Forest Ecosyst Res Stn Xishuangbanna, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China
6.Michaletz, Sean T.] Univ British Columbia, Biodivers Res Ctr, Dept Bot, Vancouver, BC, Canada
7.Seoul Natl Univ, Dept Landscape Architecture & Rural Syst Engn, Seoul, South Korea
8.Chinese Univ Hong Kong, Ctr Soybean Res, State Key Lab Agrobiotechnol, Shatin, Hong Kong, Peoples R China
9.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hung Hom, Hong Kong, Peoples R China
10.Chinese Univ Hong Kong, State Key Lab Agrobiotechnol, Shatin, Hong Kong, Peoples R China; Chinese Univ Hong Kong, Sch Life Sci, Shatin, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Guo, Zhengfei,Yan, Zhengbing,Majcher, Bartosz Marek,et al. Dynamic biotic controls of leaf thermoregulation across the diel timescale[J]. AGRICULTURAL AND FOREST METEOROLOGY,2022,315.
APA Guo, Zhengfei.,Yan, Zhengbing.,Majcher, Bartosz Marek.,Lee, Calvin K. F..,Zhao, Yingyi.,...&Wu, Jin.(2022).Dynamic biotic controls of leaf thermoregulation across the diel timescale.AGRICULTURAL AND FOREST METEOROLOGY,315.
MLA Guo, Zhengfei,et al."Dynamic biotic controls of leaf thermoregulation across the diel timescale".AGRICULTURAL AND FOREST METEOROLOGY 315(2022).
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