Role of carbonate burial in Blue Carbon budgets

V. Saderne; N. R. Geraldi; P. I. Macreadie; D. T. Maher; J. J. Middelburg; O. Serrano; H. Almahasheer; A. Arias-Ortiz; M. Cusack; B. D. Eyre; J. W. Fourqurean; H. Kennedy; D. Krause-Jensen; T. Kuwae; P. S. Lavery; C. E. Lovelock; N. Marba; P. Masqué; M. A. Mateo; I. Mazarrasa; K. J. McGlathery; M. P.J. Oreska; C. J. Sanders; I. R. Santos; J. M. Smoak; T. Tanaya; K. Watanabe; C. M. Duarte

doi:10.1038/s41467-019-08842-6

Role of carbonate burial in Blue Carbon budgets

V. Saderne^*, N. R. Geraldi, P. I. Macreadie, D. T. Maher, J. J. Middelburg, O. Serrano, H. Almahasheer, A. Arias-Ortiz, M. Cusack, B. D. Eyre, J. W. Fourqurean, H. Kennedy, D. Krause-Jensen, T. Kuwae, P. S. Lavery, C. E. Lovelock, N. Marba, P. Masqué, M. A. Mateo, I. MazarrasaK. J. McGlathery, M. P.J. Oreska, C. J. Sanders, I. R. Santos, J. M. Smoak, T. Tanaya, K. Watanabe, C. M. Duarte

^*Corresponding author for this work

Arctic Research Centre - Arctic Research Center, ECOS Water

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

110 Citations (Scopus)

Abstract

Calcium carbonates (CaCO ₃ ) often accumulate in mangrove and seagrass sediments. As CaCO ₃ production emits CO ₂ , there is concern that this may partially offset the role of Blue Carbon ecosystems as CO ₂ sinks through the burial of organic carbon (C _org ). A global collection of data on inorganic carbon burial rates (C _inorg , 12% of CaCO ₃ mass) revealed global rates of 0.8 TgC _inorg yr ⁻¹ and 15–62 TgC _inorg yr ⁻¹ in mangrove and seagrass ecosystems, respectively. In seagrass, CaCO ₃ burial may correspond to an offset of 30% of the net CO ₂ sequestration. However, a mass balance assessment highlights that the C _inorg burial is mainly supported by inputs from adjacent ecosystems rather than by local calcification, and that Blue Carbon ecosystems are sites of net CaCO ₃ dissolution. Hence, CaCO ₃ burial in Blue Carbon ecosystems contribute to seabed elevation and therefore buffers sea-level rise, without undermining their role as CO ₂ sinks.

Original language	English
Article number	1106
Journal	Nature Communications
Volume	10
Issue	1
Number of pages	9
ISSN	2041-1723
DOIs	https://doi.org/10.1038/s41467-019-08842-6
Publication status	Published - 2019

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Saderne, V., Geraldi, N. R., Macreadie, P. I., Maher, D. T., Middelburg, J. J., Serrano, O., Almahasheer, H., Arias-Ortiz, A., Cusack, M., Eyre, B. D., Fourqurean, J. W., Kennedy, H., Krause-Jensen, D., Kuwae, T., Lavery, P. S., Lovelock, C. E., Marba, N., Masqué, P., Mateo, M. A., ... Duarte, C. M. (2019). Role of carbonate burial in Blue Carbon budgets. Nature Communications, 10(1), Article 1106. https://doi.org/10.1038/s41467-019-08842-6

@article{53fe618efdd449c796a58aa59a635c1e,

title = "Role of carbonate burial in Blue Carbon budgets",

abstract = " Calcium carbonates (CaCO 3 ) often accumulate in mangrove and seagrass sediments. As CaCO 3 production emits CO 2 , there is concern that this may partially offset the role of Blue Carbon ecosystems as CO 2 sinks through the burial of organic carbon (C org ). A global collection of data on inorganic carbon burial rates (C inorg , 12% of CaCO 3 mass) revealed global rates of 0.8 TgC inorg yr −1 and 15–62 TgC inorg yr −1 in mangrove and seagrass ecosystems, respectively. In seagrass, CaCO 3 burial may correspond to an offset of 30% of the net CO 2 sequestration. However, a mass balance assessment highlights that the C inorg burial is mainly supported by inputs from adjacent ecosystems rather than by local calcification, and that Blue Carbon ecosystems are sites of net CaCO 3 dissolution. Hence, CaCO 3 burial in Blue Carbon ecosystems contribute to seabed elevation and therefore buffers sea-level rise, without undermining their role as CO 2 sinks. ",

author = "V. Saderne and Geraldi, {N. R.} and Macreadie, {P. I.} and Maher, {D. T.} and Middelburg, {J. J.} and O. Serrano and H. Almahasheer and A. Arias-Ortiz and M. Cusack and Eyre, {B. D.} and Fourqurean, {J. W.} and H. Kennedy and D. Krause-Jensen and T. Kuwae and Lavery, {P. S.} and Lovelock, {C. E.} and N. Marba and P. Masqu{\'e} and Mateo, {M. A.} and I. Mazarrasa and McGlathery, {K. J.} and Oreska, {M. P.J.} and Sanders, {C. J.} and Santos, {I. R.} and Smoak, {J. M.} and T. Tanaya and K. Watanabe and Duarte, {C. M.}",

year = "2019",

doi = "10.1038/s41467-019-08842-6",

language = "English",

volume = "10",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Research",

number = "1",

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Saderne, V, Geraldi, NR, Macreadie, PI, Maher, DT, Middelburg, JJ, Serrano, O, Almahasheer, H, Arias-Ortiz, A, Cusack, M, Eyre, BD, Fourqurean, JW, Kennedy, H, Krause-Jensen, D, Kuwae, T, Lavery, PS, Lovelock, CE, Marba, N, Masqué, P, Mateo, MA, Mazarrasa, I, McGlathery, KJ, Oreska, MPJ, Sanders, CJ, Santos, IR, Smoak, JM, Tanaya, T, Watanabe, K & Duarte, CM 2019, 'Role of carbonate burial in Blue Carbon budgets', Nature Communications, vol. 10, no. 1, 1106. https://doi.org/10.1038/s41467-019-08842-6

TY - JOUR

T1 - Role of carbonate burial in Blue Carbon budgets

AU - Saderne, V.

AU - Geraldi, N. R.

AU - Macreadie, P. I.

AU - Maher, D. T.

AU - Middelburg, J. J.

AU - Serrano, O.

AU - Almahasheer, H.

AU - Arias-Ortiz, A.

AU - Cusack, M.

AU - Eyre, B. D.

AU - Fourqurean, J. W.

AU - Kennedy, H.

AU - Krause-Jensen, D.

AU - Kuwae, T.

AU - Lavery, P. S.

AU - Lovelock, C. E.

AU - Marba, N.

AU - Masqué, P.

AU - Mateo, M. A.

AU - Mazarrasa, I.

AU - McGlathery, K. J.

AU - Oreska, M. P.J.

AU - Sanders, C. J.

AU - Santos, I. R.

AU - Smoak, J. M.

AU - Tanaya, T.

AU - Watanabe, K.

AU - Duarte, C. M.

PY - 2019

Y1 - 2019

N2 - Calcium carbonates (CaCO 3 ) often accumulate in mangrove and seagrass sediments. As CaCO 3 production emits CO 2 , there is concern that this may partially offset the role of Blue Carbon ecosystems as CO 2 sinks through the burial of organic carbon (C org ). A global collection of data on inorganic carbon burial rates (C inorg , 12% of CaCO 3 mass) revealed global rates of 0.8 TgC inorg yr −1 and 15–62 TgC inorg yr −1 in mangrove and seagrass ecosystems, respectively. In seagrass, CaCO 3 burial may correspond to an offset of 30% of the net CO 2 sequestration. However, a mass balance assessment highlights that the C inorg burial is mainly supported by inputs from adjacent ecosystems rather than by local calcification, and that Blue Carbon ecosystems are sites of net CaCO 3 dissolution. Hence, CaCO 3 burial in Blue Carbon ecosystems contribute to seabed elevation and therefore buffers sea-level rise, without undermining their role as CO 2 sinks.

AB - Calcium carbonates (CaCO 3 ) often accumulate in mangrove and seagrass sediments. As CaCO 3 production emits CO 2 , there is concern that this may partially offset the role of Blue Carbon ecosystems as CO 2 sinks through the burial of organic carbon (C org ). A global collection of data on inorganic carbon burial rates (C inorg , 12% of CaCO 3 mass) revealed global rates of 0.8 TgC inorg yr −1 and 15–62 TgC inorg yr −1 in mangrove and seagrass ecosystems, respectively. In seagrass, CaCO 3 burial may correspond to an offset of 30% of the net CO 2 sequestration. However, a mass balance assessment highlights that the C inorg burial is mainly supported by inputs from adjacent ecosystems rather than by local calcification, and that Blue Carbon ecosystems are sites of net CaCO 3 dissolution. Hence, CaCO 3 burial in Blue Carbon ecosystems contribute to seabed elevation and therefore buffers sea-level rise, without undermining their role as CO 2 sinks.

UR - http://www.scopus.com/inward/record.url?scp=85062586683&partnerID=8YFLogxK

U2 - 10.1038/s41467-019-08842-6

DO - 10.1038/s41467-019-08842-6

M3 - Journal article

C2 - 30846688

AN - SCOPUS:85062586683

SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 1106

ER -

Role of carbonate burial in Blue Carbon budgets

Abstract

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