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Title: | Mycorrhizal Distributions Impact Global Patterns of Carbon and Nutrient Cycling | Authors: | Braghiere, R. K. Fisher, J. B. Fisher, R. A. Shi, M. Steidinger, B. S. Sulman, B. N. SOUDZILOVSKAIA, Nadia Yang, X. Liang, J. Peay, K. G. Crowther, T. W. Phillips, R. P. |
Issue Date: | 2021 | Publisher: | AMER GEOPHYSICAL UNION | Source: | GEOPHYSICAL RESEARCH LETTERS, 48 (19) (Art N° e2021GL094514) | Abstract: | Most tree species predominantly associate with a single type of mycorrhizal fungi, which can differentially affect plant nutrient acquisition and biogeochemical cycling. Uncertainties in mycorrhizal distributions are non-trivial, and current estimates disagree in up to 50% over 40% of the land area, including tropical forests. Remote sensing capabilities for mycorrhizal detection show promise for refining these estimates further. Here, we address for the first time the impact of mycorrhizal distributions on global carbon and nutrient cycling. Using the state-of-the-art carbon-nitrogen economics within the Community Land Model version 5, we found Net Primary Productivity (NPP) increased throughout the 21st century by 20%; however, as soil nitrogen has progressively become limiting, the costs to NPP for nitrogen acquisition-that is, to mycorrhizae-have increased at a faster rate by 60%. This suggests that nutrient acquisition will increasingly demand a higher portion of assimilated carbon to support the same productivity. | Notes: | Braghiere, RK (corresponding author), CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.; Braghiere, RK; Fisher, JB (corresponding author), Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA. renato.k.braghiere@jpl.nasa.gov; josh.fisher@gmail.com |
Keywords: | biogeochemistry; carbon cycling; climate change; Earth system modeling;;mycorrhizae; nitrogen cycling | Document URI: | http://hdl.handle.net/1942/35919 | ISSN: | 0094-8276 | e-ISSN: | 1944-8007 | DOI: | 10.1029/2021GL094514 | ISI #: | WOS:000706306000012 | Rights: | © 2021. The Authors.This is an open access article under the terms of the Creative Commons Attribution License, | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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2021GL094514.pdf | Published version | 2.21 MB | Adobe PDF | View/Open |
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