An outlook on the Sub-Saharan Africa carbon balance
This study gives an outlook on the carbon balance of Sub-Saharan Africa (SSA) by presenting a summary of currently available results from the project CarboAfrica (namely net ecosystem productivity and emissions from fires, deforestation and forest degradation, by field and model estimates) supplemented by bibliographic data and compared with a new synthesis of the data from national communications to UNFCCC. According to these preliminary estimates the biogenic carbon balance of SSA varies from 0.16 Pg C y-1 to a much higher sink of 1.00 Pg C y-1 (depending on the source data). Models estimates would give an unrealistic sink of 3.23 Pg C y-1, confirming their current inadequacy when applied to Africa. The carbon uptake by forests and savannas (0.34 and 1.89 Pg C y-1, respectively,) are the main contributors to the resulting sink. Fires (0.72 Pg C y-1) and deforestation (0.25 Pg C y-1) are the main contributors to the SSA carbon emissions, while the agricultural sector and forest degradation contributes only with 0.12 and 0.08 Pg C y-1, respectively. Savannas play a major role in shaping the SSA carbon balance, due to their large extension, their fire regime, and their strong interannual NEP variability, but they are also a major uncertainty in the overall budget. Even if fossil fuel emissions from SSA are relative low, they can be crucial in defining the sign of the overall SSA carbon balance by reducing the natural sink potential, especially in the future. This paper shows that Africa plays a key role in the global carbon cycle system and probably could have a potential for carbon sequestration higher than expected, even if still highly uncertain. Further investigations are needed, particularly to better address the role of savannas and tropical forests and to improve biogeochemical models. The CarboAfrica network of carbon measurements could provide future unique data sets for better estimating the African carbon balance.
Main Authors: | , , , , , , , , , , , , , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | K01 - Foresterie - Considérations générales, P01 - Conservation de la nature et ressources foncières, cycle du carbone, savane, forêt tropicale, http://aims.fao.org/aos/agrovoc/c_17299, http://aims.fao.org/aos/agrovoc/c_6825, http://aims.fao.org/aos/agrovoc/c_24904, http://aims.fao.org/aos/agrovoc/c_166, |
Online Access: | http://agritrop.cirad.fr/552657/ http://agritrop.cirad.fr/552657/1/document_552657.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-552657 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5526572024-01-28T17:52:37Z http://agritrop.cirad.fr/552657/ http://agritrop.cirad.fr/552657/ An outlook on the Sub-Saharan Africa carbon balance. Bombelli Antonio, Henry M., Castaldi S., Adu-Bredu Stephen, Arneth Almur, De Grandcourt Agnès, Grieco E., Kutsch Werner L., Lehsten V., Rasile A., Reichstein Markus, Tansey K., Weber Ulrich, Valentini Riccardo. 2009. Biogeosciences, 6 (10) : 2193-2205.https://doi.org/10.5194/bg-6-2193-2009 <https://doi.org/10.5194/bg-6-2193-2009> An outlook on the Sub-Saharan Africa carbon balance Bombelli, Antonio Henry, M. Castaldi, S. Adu-Bredu, Stephen Arneth, Almur De Grandcourt, Agnès Grieco, E. Kutsch, Werner L. Lehsten, V. Rasile, A. Reichstein, Markus Tansey, K. Weber, Ulrich Valentini, Riccardo eng 2009 Biogeosciences K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 Afrique au sud du Sahara http://aims.fao.org/aos/agrovoc/c_166 This study gives an outlook on the carbon balance of Sub-Saharan Africa (SSA) by presenting a summary of currently available results from the project CarboAfrica (namely net ecosystem productivity and emissions from fires, deforestation and forest degradation, by field and model estimates) supplemented by bibliographic data and compared with a new synthesis of the data from national communications to UNFCCC. According to these preliminary estimates the biogenic carbon balance of SSA varies from 0.16 Pg C y-1 to a much higher sink of 1.00 Pg C y-1 (depending on the source data). Models estimates would give an unrealistic sink of 3.23 Pg C y-1, confirming their current inadequacy when applied to Africa. The carbon uptake by forests and savannas (0.34 and 1.89 Pg C y-1, respectively,) are the main contributors to the resulting sink. Fires (0.72 Pg C y-1) and deforestation (0.25 Pg C y-1) are the main contributors to the SSA carbon emissions, while the agricultural sector and forest degradation contributes only with 0.12 and 0.08 Pg C y-1, respectively. Savannas play a major role in shaping the SSA carbon balance, due to their large extension, their fire regime, and their strong interannual NEP variability, but they are also a major uncertainty in the overall budget. Even if fossil fuel emissions from SSA are relative low, they can be crucial in defining the sign of the overall SSA carbon balance by reducing the natural sink potential, especially in the future. This paper shows that Africa plays a key role in the global carbon cycle system and probably could have a potential for carbon sequestration higher than expected, even if still highly uncertain. Further investigations are needed, particularly to better address the role of savannas and tropical forests and to improve biogeochemical models. The CarboAfrica network of carbon measurements could provide future unique data sets for better estimating the African carbon balance. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/552657/1/document_552657.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.5194/bg-6-2193-2009 10.5194/bg-6-2193-2009 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=205836 info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-6-2193-2009 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.5194/bg-6-2193-2009 info:eu-repo/semantics/reference/purl/http://www.biogeosciences.net/6/2193/2009/bg-6-2193-2009.html |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_166 K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_166 |
spellingShingle |
K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_166 K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_166 Bombelli, Antonio Henry, M. Castaldi, S. Adu-Bredu, Stephen Arneth, Almur De Grandcourt, Agnès Grieco, E. Kutsch, Werner L. Lehsten, V. Rasile, A. Reichstein, Markus Tansey, K. Weber, Ulrich Valentini, Riccardo An outlook on the Sub-Saharan Africa carbon balance |
description |
This study gives an outlook on the carbon balance of Sub-Saharan Africa (SSA) by presenting a summary of currently available results from the project CarboAfrica (namely net ecosystem productivity and emissions from fires, deforestation and forest degradation, by field and model estimates) supplemented by bibliographic data and compared with a new synthesis of the data from national communications to UNFCCC. According to these preliminary estimates the biogenic carbon balance of SSA varies from 0.16 Pg C y-1 to a much higher sink of 1.00 Pg C y-1 (depending on the source data). Models estimates would give an unrealistic sink of 3.23 Pg C y-1, confirming their current inadequacy when applied to Africa. The carbon uptake by forests and savannas (0.34 and 1.89 Pg C y-1, respectively,) are the main contributors to the resulting sink. Fires (0.72 Pg C y-1) and deforestation (0.25 Pg C y-1) are the main contributors to the SSA carbon emissions, while the agricultural sector and forest degradation contributes only with 0.12 and 0.08 Pg C y-1, respectively. Savannas play a major role in shaping the SSA carbon balance, due to their large extension, their fire regime, and their strong interannual NEP variability, but they are also a major uncertainty in the overall budget. Even if fossil fuel emissions from SSA are relative low, they can be crucial in defining the sign of the overall SSA carbon balance by reducing the natural sink potential, especially in the future. This paper shows that Africa plays a key role in the global carbon cycle system and probably could have a potential for carbon sequestration higher than expected, even if still highly uncertain. Further investigations are needed, particularly to better address the role of savannas and tropical forests and to improve biogeochemical models. The CarboAfrica network of carbon measurements could provide future unique data sets for better estimating the African carbon balance. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales P01 - Conservation de la nature et ressources foncières cycle du carbone savane forêt tropicale http://aims.fao.org/aos/agrovoc/c_17299 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_166 |
author |
Bombelli, Antonio Henry, M. Castaldi, S. Adu-Bredu, Stephen Arneth, Almur De Grandcourt, Agnès Grieco, E. Kutsch, Werner L. Lehsten, V. Rasile, A. Reichstein, Markus Tansey, K. Weber, Ulrich Valentini, Riccardo |
author_facet |
Bombelli, Antonio Henry, M. Castaldi, S. Adu-Bredu, Stephen Arneth, Almur De Grandcourt, Agnès Grieco, E. Kutsch, Werner L. Lehsten, V. Rasile, A. Reichstein, Markus Tansey, K. Weber, Ulrich Valentini, Riccardo |
author_sort |
Bombelli, Antonio |
title |
An outlook on the Sub-Saharan Africa carbon balance |
title_short |
An outlook on the Sub-Saharan Africa carbon balance |
title_full |
An outlook on the Sub-Saharan Africa carbon balance |
title_fullStr |
An outlook on the Sub-Saharan Africa carbon balance |
title_full_unstemmed |
An outlook on the Sub-Saharan Africa carbon balance |
title_sort |
outlook on the sub-saharan africa carbon balance |
url |
http://agritrop.cirad.fr/552657/ http://agritrop.cirad.fr/552657/1/document_552657.pdf |
work_keys_str_mv |
AT bombelliantonio anoutlookonthesubsaharanafricacarbonbalance AT henrym anoutlookonthesubsaharanafricacarbonbalance AT castaldis anoutlookonthesubsaharanafricacarbonbalance AT adubredustephen anoutlookonthesubsaharanafricacarbonbalance AT arnethalmur anoutlookonthesubsaharanafricacarbonbalance AT degrandcourtagnes anoutlookonthesubsaharanafricacarbonbalance AT griecoe anoutlookonthesubsaharanafricacarbonbalance AT kutschwernerl anoutlookonthesubsaharanafricacarbonbalance AT lehstenv anoutlookonthesubsaharanafricacarbonbalance AT rasilea anoutlookonthesubsaharanafricacarbonbalance AT reichsteinmarkus anoutlookonthesubsaharanafricacarbonbalance AT tanseyk anoutlookonthesubsaharanafricacarbonbalance AT weberulrich anoutlookonthesubsaharanafricacarbonbalance AT valentiniriccardo anoutlookonthesubsaharanafricacarbonbalance AT bombelliantonio outlookonthesubsaharanafricacarbonbalance AT henrym outlookonthesubsaharanafricacarbonbalance AT castaldis outlookonthesubsaharanafricacarbonbalance AT adubredustephen outlookonthesubsaharanafricacarbonbalance AT arnethalmur outlookonthesubsaharanafricacarbonbalance AT degrandcourtagnes outlookonthesubsaharanafricacarbonbalance AT griecoe outlookonthesubsaharanafricacarbonbalance AT kutschwernerl outlookonthesubsaharanafricacarbonbalance AT lehstenv outlookonthesubsaharanafricacarbonbalance AT rasilea outlookonthesubsaharanafricacarbonbalance AT reichsteinmarkus outlookonthesubsaharanafricacarbonbalance AT tanseyk outlookonthesubsaharanafricacarbonbalance AT weberulrich outlookonthesubsaharanafricacarbonbalance AT valentiniriccardo outlookonthesubsaharanafricacarbonbalance |
_version_ |
1792497439213617152 |