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DOI | 10.1073/pnas.1807600116 |
Influences of light and humidity on carbonyl sulfide-based estimates of photosynthesis | |
Kooijmans, Linda M. J.1,7; Sun, Wu2; Aalto, Juho3,4; Erkkila, Kukka-Maaria3; Maseyk, Kadmiel5; Seibt, Ulrike2; Vesala, Timo3,6; Mammarella, Ivan3; Chen, Huilin1 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:7页码:2470-2475 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; USA; Finland; England |
英文摘要 | Understanding climate controls on gross primary productivity (GPP) is crucial for accurate projections of the future land carbon cycle. Major uncertainties exist due to the challenge in separating GPP and respiration from observations of the carbon dioxide (CO2) flux. Carbonyl sulfide (COS) has a dominant vegetative sink, and plant COS uptake is used to infer GPP through the leaf relative uptake (LRU) ratio of COS to CO2 fluxes. However, little is known about variations of LRU under changing environmental conditions and in different phenological stages. We present COS and CO2 fluxes and LRU of Scots pine branches measured in a boreal forest in Finland during the spring recovery and summer. We find that the diurnal dynamics of COS uptake is mainly controlled by stomatal conductance, but the leaf internal conductance could significantly limit the COS uptake during the daytime and early in the season. LRU varies with light due to the differential light responses of COS and CO2 uptake, and with vapor pressure deficit (VPD) in the peak growing season, indicating a humidity-induced stomatal control. Our COS-based GPP estimates show that it is essential to incorporate the variability of LRU with environmental variables for accurate estimation of GPP on ecosystem, regional, and global scales. |
英文关键词 | carbonyl sulfide photosynthesis stomatal conductance carbon cycle |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458365600017 |
WOS关键词 | STOMATAL CONDUCTANCE ; EXCHANGE ; COS ; FLUXES ; MODEL ; VEGETATION ; ANHYDRASE ; CONSUMPTION ; ATMOSPHERE ; FOREST |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/205219 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Groningen, Ctr Isotope Res, NL-9747 AG Groningen, Netherlands; 2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 3.Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Fac Sci, FIN-00014 Helsinki, Finland; 4.Univ Helsinki, Hyytiala Forestry Field Stn, Stn Measuring Forest Ecosyst Atmosphere Relat 2, Korkeakoski 35500, Finland; 5.Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England; 6.Univ Helsinki, Fac Agr & Forestry, Inst Atmospher & Earth Syst Res Forest Sci, FIN-00014 Helsinki, Finland; 7.Wageningen Univ & Res Ctr, Meteorol & Air Qual Grp, NL-6700 AA Wageningen, Netherlands |
推荐引用方式 GB/T 7714 | Kooijmans, Linda M. J.,Sun, Wu,Aalto, Juho,et al. Influences of light and humidity on carbonyl sulfide-based estimates of photosynthesis[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(7):2470-2475. |
APA | Kooijmans, Linda M. J..,Sun, Wu.,Aalto, Juho.,Erkkila, Kukka-Maaria.,Maseyk, Kadmiel.,...&Chen, Huilin.(2019).Influences of light and humidity on carbonyl sulfide-based estimates of photosynthesis.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(7),2470-2475. |
MLA | Kooijmans, Linda M. J.,et al."Influences of light and humidity on carbonyl sulfide-based estimates of photosynthesis".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.7(2019):2470-2475. |
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