@article{fdi:010091256,
  title = {{C}ontrasted effects of shade tree legumes on soil organic carbon stock and carbon balance in 20-year cacao agroforestry, {I}vory {C}oast},
  author = {{S}ilue, {B}. {K}. and {K}one, {A}. {W}. and {M}asse, {D}ominique and {M}oulin {E}smard, {P}atricia and {K}otaix, {A}. {J}. {A}. and {C}hapuis {L}ardy, {L}ydie},
  editor = {},
  language = {{ENG}},
  abstract = {{C}acao-based agroforestry systems are promoted as adaptation and mitigation solutions for cacao production and carbon sequestration. {B}ased on a 20-year experiment, we assessed the impact of associated shade tree legume ({ATL}), {A}lbizia lebbeck and {A}cacia mangium on the total carbon stock (in soil at 60 cm depth + tree biomass + litter) of cacao stands. {T}his study included cacao systems shaded with either {A}. lebbeck ({C}acao-{A}lb) or {A}. mangium ({C}acao-{A}ca) and full-sun cacao stands ({C}ontrol). {S}oil organic carbon ({SOC}) contents (up to 60 cm deep) were estimated by a calibrated near-infrared spectroscopy model. {T}otal tree biomasses were estimated using allometric equations. {L}eaf litter was sampled from 1-m2 quadrats. {C}ompared to {C}ontrol, {C}acao-{A}ca had a significant negative impact on the carbon stock in the cacao biomass (-47%) as well and in the soil at depths of 10 cm (-23%), 30 cm (-21%) and 60 cm (-12%). {I}n contrast, {C}acao-{A}lb had a nonsignificant effect on carbon storage in the cacao biomass, whereas it generally had a positive influence on the {SOC} stock regardless of depth, i.e., +6% at the 0-10 cm depth, +7% at 0-30 cm, +20% at 30-60 cm and + 11% at 0-60 cm. {C}acao-{A}ca had a significant positive impact (+71%) on the total carbon stock per hectare. {T}he increase in {C}acao-{A}lb relative to that in the {C}ontrol reached +38%, but the difference was not significant. {T}hese contrasting results between the two tree legume species could be explained by the high-quality litter, reflected by the lower {C}/{N} and {C}/{P} ratios produced by {A}. lebbeck, and the greater negative impact of {A}. mangium on cacao biomass. {T}he main finding of this study is that the impact of intercropping cacao with shade tree legumes on the stand-level total carbon stock depends on the {ATL} species.},
  keywords = {{C}acao agroforestry systems ; {A}cacia mangium ; {A}lbizia lebbeck ; {C}arbon balance ; {S}oil organic carbon ; {L}itter quality ; {A}crisols ; {COTE} {D}'{IVOIRE}},
  booktitle = {},
  journal = {{G}eoderma {R}egional},
  volume = {37},
  numero = {},
  pages = {e00807 [10 ]},
  ISSN = {2352-0094},
  year = {2024},
  DOI = {10.1016/j.geodrs.2024.e00807},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091256},
}