气候变化领域集成服务门户(CCPortal): Integration of electron flow partitioning improves estimation of photosynthetic rate under various environmental conditions based on chlorophyll fluorescence

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DOI	10.1016/j.rse.2020.112273
	Integration of electron flow partitioning improves estimation of photosynthetic rate under various environmental conditions based on chlorophyll fluorescence
	Kitao M.; Yasuda Y.; Kodani E.; Harayama H.; Awaya Y.; Komatsu M.; Yazaki K.; Tobita H.; Agathokleous E.
发表日期	2021
ISSN	00344257
卷号	254
英文摘要	Electron transport rate (ETR), estimated from chlorophyll fluorescence, is a widely-used indicator of photosynthetic activity. However, net photosynthetic CO2 assimilation rate (A) does not linearly correlate with ETR when the fraction of electron partitioning into photosynthesis and photorespiration changes under fluctuating environmental conditions (CO2, light, temperature and soil moisture). Here, we propose a practical approach to estimate A based on ETR with integration of stomatal conductance (gs) and leaf temperature, taking intercellular CO2 concentration (Ci)- and temperature-dependent electron partitioning into account. A estimated with the present approach was in good agreement with A measured under i) various CO2 concentrations and light intensities in seedlings of Japanese beech and Japanese white birch, and ii) under 400 and 800 μmol mol−1 CO2 and temperatures of 15–40 °C, and iii) in progress of drought stress after a water withholding in seedlings of Japanese white birch. Furthermore, canopy-level CO2 uptake could be estimated based on the spectroscopic and flux observations over a Japanese beech stand, under a wide range of environmental conditions. The present approach is advantageous because it does not require biochemical information, such as the maximum rates of Rubisco carboxylation and electron transport, providing a more forward approach to estimate terrestrial carbon flux through remote sensing approaches. © 2020 The Author(s)
英文关键词	Drought; Electron transport; Leaf temperature; Photosynthetic gas exchange; Remote sensing; Stomatal closure
语种	英语
scopus关键词	Carboxylation; Chlorophyll; Electron transport properties; Fluorescence; Forestry; Remote sensing; Soil moisture; Biochemical information; Chlorophyll fluorescence; Electron transport rate; Environmental conditions; Photosynthetic activity; Remote sensing approaches; Stomatal conductance; Temperature dependent; Carbon dioxide; carbon dioxide; carbon flux; concentration (composition); deciduous tree; drought stress; environmental conditions; photosynthesis; remote sensing; stomatal conductance; Betula platyphylla var. japonica; Fagus crenata; Indicator indicator
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178985
作者单位	Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo, 062-8516, Japan; Department of Disaster Prevention, Meteorology and Hydrology, Forestry and Forest Products Research Institute, Tsukuba, 305-8687, Japan; Tohoku Research Center, Forestry and Forest Products Research Institute, Morioka, 020-0123, Japan; River Basin Research Center, Gifu University, Gifu, 501-1193, Japan; Department of Mushroom Science and Forest Microbiology, Forestry and Forest Products Research Institute, Tsukuba, 305-8687, Japan; Department of Plant Ecology, Forestry and Forest Products Research Institute, Tsukuba, 305-8687, Japan; Key Laboratory of Agrometeorology of Jiangsu Province, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China
推荐引用方式 GB/T 7714	Kitao M.,Yasuda Y.,Kodani E.,et al. Integration of electron flow partitioning improves estimation of photosynthetic rate under various environmental conditions based on chlorophyll fluorescence[J],2021,254.
APA	Kitao M..,Yasuda Y..,Kodani E..,Harayama H..,Awaya Y..,...&Agathokleous E..(2021).Integration of electron flow partitioning improves estimation of photosynthetic rate under various environmental conditions based on chlorophyll fluorescence.Remote Sensing of Environment,254.
MLA	Kitao M.,et al."Integration of electron flow partitioning improves estimation of photosynthetic rate under various environmental conditions based on chlorophyll fluorescence".Remote Sensing of Environment 254(2021).