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Predicting soil carbon loss with warming
journal contribution
posted on 2023-05-22, 03:25 authored by van Gestel, N, Shi, Z, van Groenigen, KJ, Osenberg, CW, Andresen, LC, Dukes, JS, Mark HovendenMark Hovenden, Luo, Y, Michelsen, A, Pendall, E, Reich, PB, Schuur, EAG, Hungate, BACrowther et al. reported that the best predictor of surface soil carbon (top 10 cm) losses in response to warming is the size of the surface carbon stock in the soil (that is, carbon stocks in plots that have not been warmed), finding that soils that are high in soil carbon also lose more carbon under warming conditions. This relationship was based on a linear regression of soil carbon losses and soil carbon stocks in field warming studies, which was then used to project carbon losses over time and to generate a map of soil carbon vulnerability. However, a few extreme data points (high-leverage points) can strongly influence the slope of a regression line. Only 5 of the 49 sites analysed by Crowther et al.1 are in the upper half of the carbon stock range, which raises the possibility that the relationship they observed could be substantially altered by introducing data from sites with relatively high surface soil carbon stocks. There is a Reply to this Comment by Crowther, T. W. et al. Nature 554, 10.1038/nature25746 (2018).
Funding
Australian Research Council
History
Publication title
NatureVolume
554Pagination
104-108ISSN
0028-0836Department/School
School of Natural SciencesPublisher
Nature Publishing GroupPlace of publication
Macmillan Building, 4 Crinan St, London, England, N1 9XwRights statement
Copyright 2018 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.Repository Status
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