Global variation in the fraction of leaf nitrogen allocated to photosynthesis

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dc.creatorLuo, Xiangzhong
dc.creatorKeenan, Trevor F.
dc.creatorChen, Jing M.
dc.creatorCroft, Holly
dc.creatorPrentice, I. Colin
dc.creatorSmith, Nicholas G. (TTU)
dc.creatorWalker, Anthony P.
dc.creatorWang, Han
dc.creatorWang, Rong
dc.creatorXu, Chonggang
dc.creatorZhang, Yao
dc.date.accessioned2022-06-16T15:34:42Z
dc.date.available2022-06-16T15:34:42Z
dc.date.issued2021
dc.descriptionThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en_US
dc.description.abstractPlants invest a considerable amount of leaf nitrogen in the photosynthetic enzyme ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCO), forming a strong coupling of nitrogen and photosynthetic capacity. Variability in the nitrogen-photosynthesis relationship indicates different nitrogen use strategies of plants (i.e., the fraction nitrogen allocated to RuBisCO; fLNR), however, the reason for this remains unclear as widely different nitrogen use strategies are adopted in photosynthesis models. Here, we use a comprehensive database of in situ observations, a remote sensing product of leaf chlorophyll and ancillary climate and soil data, to examine the global distribution in fLNR using a random forest model. We find global fLNR is 18.2 ± 6.2%, with its variation largely driven by negative dependence on leaf mass per area and positive dependence on leaf phosphorus. Some climate and soil factors (i.e., light, atmospheric dryness, soil pH, and sand) have considerable positive influences on fLNR regionally. This study provides insight into the nitrogen-photosynthesis relationship of plants globally and an improved understanding of the global distribution of photosynthetic potential.en_US
dc.identifier.citationLuo, X., Keenan, T.F., Chen, J.M. et al. Global variation in the fraction of leaf nitrogen allocated to photosynthesis. Nat Commun 12, 4866 (2021). https://doi.org/10.1038/s41467-021-25163-9en_US
dc.identifier.urihttps://doi.org/10.1038/s41467-021-25163-9
dc.identifier.urihttps://hdl.handle.net/2346/89528
dc.language.isoengen_US
dc.subjectEcological Modelingen_US
dc.subjectEcophysiologyen_US
dc.subjectRubiscoen_US
dc.titleGlobal variation in the fraction of leaf nitrogen allocated to photosynthesisen_US
dc.typeArticleen_US

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