Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Minasny B., Malone B. P., McBratney A. B., Angers D. A., Arrouays D., Chambers A., Chaplot Vincent, Chen Z. S., Cheng K., Das B. S., Field D. J., Gimona A., Hedley C. B., Hong S. Y., Mandal B., Marchant B. P., Martin M., McConkey B. G., Mulder V. L., O'Rourke S., Richer-de-Forges A. C., Odeh I., Padarian J., Paustian K., Pan G. X., Poggio L., Savin I., Stolbovoy V., Stockmann U., Sulaeman Y., Tsui C. C., Vagen T. G., van Wesemael B., Winowiecki L. (2017). Soil carbon 4 per mille. Geoderma, 292, 59-86. ISSN 0016-7061

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1016/j.geoderma2017.01.002

Titre
Soil carbon 4 per mille
Année de publication2017
Type de documentArticle référencé dans le Web of Science WOS:000401878600007
AuteursMinasny B., Malone B. P., McBratney A. B., Angers D. A., Arrouays D., Chambers A., Chaplot Vincent, Chen Z. S., Cheng K., Das B. S., Field D. J., Gimona A., Hedley C. B., Hong S. Y., Mandal B., Marchant B. P., Martin M., McConkey B. G., Mulder V. L., O'Rourke S., Richer-de-Forges A. C., Odeh I., Padarian J., Paustian K., Pan G. X., Poggio L., Savin I., Stolbovoy V., Stockmann U., Sulaeman Y., Tsui C. C., Vagen T. G., van Wesemael B., Winowiecki L.
SourceGeoderma, 2017, 292, p. 59-86. ISSN 0016-7061
RésuméThe '4 per mille Soils for Food Security and Climate' was launched at the COP21 with an aspiration to increase global soil organic matter stocks by 4 per 1000 (or 0.4 %) per year as a compensation for the global emissions of greenhouse gases by anthropogenic sources. This paper surveyed the soil organic carbon (SOC) stock estimates and sequestration potentials from 20 regions in the world (New Zealand, Chile, South Africa, Australia, Tanzania, Indonesia, Kenya, Nigeria, India, China Taiwan, South Korea, China Mainland, United States of America, France, Canada, Belgium, England & Wales, Ireland, Scotland, and Russia). We asked whether the 4 per mille initiative is feasible for the region. The outcomes highlight region specific efforts and scopes for soil carbon sequestration. Reported soil C sequestration rates globally show that under best management practices, 4 per mille or even higher sequestration rates can be accomplished. High C sequestration rates (up to 10 per mille) can be achieved for soils with low initial SOC stock (topsoil less than 30 t C ha(-1)), and at the first twenty years after implementation of best management practices. In addition, areas which have reached equilibrium will not be able to further increase their sequestration. We found that most studies on SOC sequestration only consider topsoil (up to 0.3 m depth), as it is considered to be most affected by management techniques. The 4 per mille number was based on a blanket calculation of the whole global soil profile C stock, however the potential to increase SOC is mostly on managed agricultural lands. If we consider 4 per mille in the top 1m of global agricultural soils, SOC sequestration is between 2-3 Gt C year(-1) which effectively offset 20-35% of global anthropogenic greenhouse gas emissions. As a strategy for climate change mitigation, soil carbon sequestration buys time over the next ten to twenty years while other effective sequestration and low carbon technologies become viable. The challenge for croppihg farmers is to find disruptive technologies that will further improve soil condition and deliver increased soil carbon. Progress in 4 per mille requires collaboration and communication between scientists, farmers, policy makers, and marketeers.
Plan de classementPédologie [068] ; Sciences du milieu [021]
Descr. géo.MONDE
LocalisationFonds IRD [F B010070068]
Identifiant IRDfdi:010070068
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010070068

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito