Future nitrogen availability and its effect on carbon sequestration in Northern Eurasia
Kicklighter, David W.
Melillo, Jerry M.
Sokolov, Andrei P.
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Nitrogen (N) availability exerts strong control on carbon storage in the forests of Northern Eurasia. Here, using a process-based model, we explore how three factors that alter N availability—permafrost degradation, atmospheric N deposition, and the abandonment of agricultural land to forest regrowth (land-use legacy)—affect carbon storage in the region’s forest vegetation over the 21st century within the context of two IPCC global-change scenarios (RCPs 4.5 and 8.5). For RCP4.5, enhanced N availability results in increased tree carbon storage of 27.8 Pg C, with land-use legacy being the most important factor. For RCP8.5, enhanced N availability results in increased carbon storage in trees of 13.4 Pg C, with permafrost degradation being the most important factor. Our analysis reveals complex spatial and temporal patterns of regional carbon storage. This study underscores the importance of considering carbon-nitrogen interactions when assessing regional and sub-regional impacts of global change policies.
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Kicklighter, D. W., Melillo, J. M., Monier, E., Sokolov, A. P., & Zhuang, Q. Future nitrogen availability and its effect on carbon sequestration in Northern Eurasia. Nature Communications, 10, (2019): 3024, doi: 10.1038/s41467-019-10944-0.
Suggested CitationKicklighter, D. W., Melillo, J. M., Monier, E., Sokolov, A. P., & Zhuang, Q. (2019). Future nitrogen availability and its effect on carbon sequestration in Northern Eurasia. Nature Communications, 10, 3024.
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