气候变化领域集成服务门户(CCPortal): Solar-induced chlorophyll fluorescence is non-linearly related to canopy photosynthesis in a temperate evergreen needleleaf forest during the fall transition

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DOI	10.1016/j.rse.2021.112362
	Solar-induced chlorophyll fluorescence is non-linearly related to canopy photosynthesis in a temperate evergreen needleleaf forest during the fall transition
	Kim J.; Ryu Y.; Dechant B.; Lee H.; Kim H.S.; Kornfeld A.; Berry J.A.
发表日期	2021
ISSN	00344257
卷号	258
英文摘要	Solar-induced chlorophyll fluorescence (SIF) provides us with new opportunities to understand the physiological and structural dynamics of vegetation from leaf to global scales. However, the relationships between SIF and gross primary productivity (GPP) are not fully understood, which is mainly due to the challenges of decoupling structural and physiological factors that control the relationships. Here, we report the results of continuous observations of canopy-level SIF, GPP, absorbed photosynthetically active radiation (APAR), and chlorophyll: carotenoid index (CCI) in a temperate evergreen needleleaf forest. To understand the mechanisms underlying the relationship between GPP and SIF, we investigated the relationships of light use efficiency (LUEp), chlorophyll fluorescence yield (ΦF), and the fraction of emitted SIF photons escaping from the canopy (fesc) separately. We found a strongly non-linear relationship between GPP and SIF at diurnal and seasonal time scales (R2 = 0.91 with a hyperbolic regression function, daily). GPP saturated with APAR, while SIF did not. Also, there were differential responses of LUEp and ΦF to air temperature. While LUEp reached saturation at high air temperatures, ΦF did not saturate. We found that the canopy-level chlorophyll: carotenoid index was strongly correlated to canopy-level ΦF (R2 = 0.84) implying that ΦF could be more closely related to pigment pool changes rather than LUEp. In addition, we found that the fesc contributed to a stronger SIF-GPP relationship by partially capturing the response of LUEp to diffuse light. These findings can help refine physiological and structural links between canopy-level SIF and GPP in evergreen needleleaf forest. © 2021 Elsevier Inc.
英文关键词	Evergreen needleleaf forest; Gross primary productivity; Light use efficiency; Non-photochemical quenching; Photosynthesis; Solar-induced chlorophyll fluorescence
语种	英语
scopus关键词	Atmospheric temperature; Chlorophyll; Efficiency; Fluorescence; Forestry; Light; Photosynthesis; Physiological models; Physiology; Structural dynamics; Air temperature; Canopy level; Canopy photosynthesis; Chlorophyll fluorescence; Evergreen needleleaf forest; Gross primary productivity; Light use efficiency; Non-photochemical quenching; Photosynthetically active radiation; Solar-induced chlorophyll fluorescence; Phytoplankton; chlorophyll; evergreen forest; evergreen tree; fluorescence; forest ecosystem; light use efficiency; net primary production; photosynthesis; photosynthetically active radiation; seasonal variation
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/178890
作者单位	Interdisciplinary Program in Landscape Architecture, Seoul National University, Seoul, South Korea; Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, South Korea; Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South Korea; Interdisciplinary Program in Agricultural and Forest Meteorology, Seoul National University, Seoul, South Korea; National Center for Agro Meteorology, Seoul, South Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul, South Korea; Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, United States
推荐引用方式 GB/T 7714	Kim J.,Ryu Y.,Dechant B.,et al. Solar-induced chlorophyll fluorescence is non-linearly related to canopy photosynthesis in a temperate evergreen needleleaf forest during the fall transition[J],2021,258.
APA	Kim J..,Ryu Y..,Dechant B..,Lee H..,Kim H.S..,...&Berry J.A..(2021).Solar-induced chlorophyll fluorescence is non-linearly related to canopy photosynthesis in a temperate evergreen needleleaf forest during the fall transition.Remote Sensing of Environment,258.
MLA	Kim J.,et al."Solar-induced chlorophyll fluorescence is non-linearly related to canopy photosynthesis in a temperate evergreen needleleaf forest during the fall transition".Remote Sensing of Environment 258(2021).