Zhang-Zheng H., Adu-Bredu S., Duah-Gyamfi A., Moore S., Addo-Danso S.D., Amissah L., Valentini R., Djagbletey G., Anim-Adjei K., Quansah J., Sarpong B., Owusu-Afriyie K., Gvozdevaite A., Tang M., Ruiz-Jaen M.C., Ibrahim F., Girardin C.A. J., Rifai S., Dahlsjö C.A. L., Riutta T., Deng X., Sun Y., Prentice I.C., Oliveras Menor Imma, Malhi Y. (2024). Contrasting carbon cycle along tropical forest aridity gradients in West Africa and Amazonia. Nature Communications, 15 (1), 3158 [9 p.]. ISSN 2041-1723.
Titre du document
Contrasting carbon cycle along tropical forest aridity gradients in West Africa and Amazonia
Année de publication
2024
Auteurs
Zhang-Zheng H., Adu-Bredu S., Duah-Gyamfi A., Moore S., Addo-Danso S.D., Amissah L., Valentini R., Djagbletey G., Anim-Adjei K., Quansah J., Sarpong B., Owusu-Afriyie K., Gvozdevaite A., Tang M., Ruiz-Jaen M.C., Ibrahim F., Girardin C.A. J., Rifai S., Dahlsjö C.A. L., Riutta T., Deng X., Sun Y., Prentice I.C., Oliveras Menor Imma, Malhi Y.
Source
Nature Communications, 2024,
15 (1), 3158 [9 p.] ISSN 2041-1723
Tropical forests cover large areas of equatorial Africa and play a substantial role in the global carbon cycle. However, there has been a
lack of biometric measurements to understand the forests' gross and net primary productivity (GPP, NPP) and their allocation. Here we present
a detailed field assessment of the carbon budget of multiple forest sites in Africa, by monitoring 14 one-hectare plots along an aridity gradient
in Ghana, West Africa. When compared with an equivalent aridity gradient in Amazonia, the studied West African forests generally had higher productivity
and lower carbon use efficiency (CUE). The West African aridity gradient consistently shows the highest NPP, CUE, GPP, and autotrophic respiration at
a medium-aridity site, Bobiri. Notably, NPP and GPP of the site are the highest yet reported anywhere for intact forests. Widely used data products
substantially underestimate productivity when compared to biometric measurements in Amazonia and Africa. Our analysis suggests that the high
productivity of the African forests is linked to their large GPP allocation to canopy and semi-deciduous characteristics.
Plan de classement
Sciences du milieu [021]
;
Etudes, transformation, conservation du milieu naturel [082]
Localisation
Fonds IRD [F B010092544]
Identifiant IRD
fdi:010092544
