@article{fdi:010084668, title = {{S}pecific effects of tree species on soil carbon sequestration in a rice-tree association mesocosm experiment : evidence from natural {C}-13 abundance}, author = {{R}asoarinaivo, {A}. {R}. and {R}azafimbelo, {T}. {M}. and {B}lanchart, {E}ric and {C}hapuis {L}ardy, {L}ydie and {C}hevallier, {T}iphaine and {B}ouillet, {J}. {P}. and {T}rap, {J}ean}, editor = {}, language = {{ENG}}, abstract = {{W}ithin agroforestry systems, trees greatly contribute to soil carbon ({C}) sequestration. {W}e still know little about how this contribution varies according to tree species. {H}ere, we quantified the soil {C} content derived from three main tree species, {E}ucalyptus robusta, {C}offea arabica and {C}itrus clementina, used in rainfed rice-based agroforestry in the {H}ighlands of {M}adagascar. {A} fully factorial controlled mesocosm experiment was performed, with seedlings of the tree species planted with or without rice in a {F}erralsol. {T}he natural {C}-13 abundance in the soil was measured to assess tree-and rice-derived {C}. {O}ne year after planting, {E}ucalyptus robusta was the species exhibiting the highest tree-derived {C} values, with 148 g {C} m(-2) on average. {I}n contrast, {C}itrus clementina transferred only 12 g {C} m(-2) to the soil. {N}o significant contribution of {C}offea arabica to the soil {C} stock was found. {T}he presence of rice affected neither the growth of tree seedlings nor their abilities to provide {C} to the soil. {T}he difference in soil {C} sequestration among tree species was significantly correlated with differential root biomass. {T}ree root biomass was significantly correlated with soil delta {C}-13. {T}his experimental assay highlighted the contrasting contributions of tree species to ecological processes such as soil {C} sequestration at the early stage of agroforestry establishment. {F}urther studies considering tree density and spatial arrangement should be conducted under field conditions to gain further insights into tree contributions to soil {C} sequestration in agroforestry systems.}, keywords = {{A}groforestry ; {E}ucalyptus robusta ; {C}offea arabica ; {C}itrus clementina ; {C}arbon dynamics ; {T}ropical regions ; {MADAGASCAR}}, booktitle = {}, journal = {{R}hizosphere}, volume = {21}, numero = {}, pages = {100485 [9 p.]}, year = {2022}, DOI = {10.1016/j.rhisph.2022.100485}, URL = {https://www.documentation.ird.fr/hor/fdi:010084668}, }