@article{fdi:010097489,
  title = {{A} systematic and critical review of long-term diachronic experiments on soil organic carbon dynamics in the {G}lobal {S}outh},
  author = {{K}pemoua, {T}. {P}. {I}. and {H}oussoukpevi, {I}. {A}. and {F}ujisaki, {K}. and {V}ersini, {A}. and {C}ardinael, {R}. and {B}arre, {P}. and {C}hevallier, {T}iphaine and {L}e {N}o{\¨e}, {J}ulia},
  editor = {},
  language = {{ENG}},
  abstract = {{S}oil organic carbon ({SOC}) sequestration is increasingly recognized as a key lever for mitigating greenhouse gas emissions. {H}owever, knowledge about {SOC} dynamics under various land management practices remains limited in the {G}lobal {S}outh. {L}ong-term experiments ({LTE}s), combined with a diachronic soil sampling approach, i.e., based on repeated measurements over time, offer robust insights into how land use and management practices affect {SOC} sequestration and provide indispensable observations for reliable model calibration. {T}his systematic review compiles 155 peer-reviewed diachronic studies conducted in the {G}lobal {S}outh, excluding {C}hina, corresponding to 174 {LTE}s lasting at least 5 years. {M}ost {LTE}s are conducted on cropland (92%), while agroforestry, forest, and savannah are underrepresented. {T}he most frequently studied practices are mineral fertilization (52%), mixed mineral and organic fertilization (37%) and tillage management (30%). {T}he effects of these practices on {SOC} dynamics show trends similar to those observed in the {G}lobal {N}orth, i.e., positive effects of both mineral and organic fertilization and conservation tillage. {H}owever, these findings may be biased by limited geographical, pedoclimatic, and agricultural practices representativeness. {A}rid soils and dry climates are underrepresented in favor of subhumid and humid areas. {I}ndia and {B}razil alone account for two-thirds of {LTE}s studies, despite their contrasting farming systems, smallholder agriculture in {I}ndia versus large-scale mechanized systems in {B}razil. {T}his hides the variability of farming systems in the {G}lobal {S}outh. {I}n many {A}frican and {S}outheast {A}sian countries, mineral fertilizer rates applied in {LTE}s exceed national averages by 100 to 1000%, while low-input traditional systems, such as agroforestry or slash-and-burn are absent. {T}hese imbalances reflect a funding and publication dynamic that favors agricultural systems and practices that are already well documented. {T}hese biases also present major blind spots for {SOC} modeling and limit the applicability of current knowledge to diverse farming systems in the {G}lobal {S}outh. {I}t is therefore essential to intensify and diversify {LTE}s research to better reflect local practices and underrepresented pedoclimatic conditions.},
  keywords = {{S}oil organic carbon ; {L}ong-term experiments ; {D}iachronic ; {A}gricultural practices ; {C}arbon sequestration ; {G}lobal south ; {AFRIQUE} {SUBSAHARIENNE} ; {AMERIQUE} {CENTRALE} ; {AMERIQUE} {DU} {SUD} ; {ASIE} {DU} {SUD} ; {ASIE} {DU} {SUD} {EST}},
  booktitle = {},
  journal = {{G}eoderma {R}egional},
  volume = {46},
  numero = {},
  pages = {e01101 [16 p.]},
  ISSN = {2352-0094},
  year = {2026},
  DOI = {10.1016/j.geodrs.2026.e01101},
  URL = {https://www.documentation.ird.fr/hor/fdi:010097489},
}