@article{fdi:010078945,
  title = {{C}rops for increasing soil organic carbon stocks : a global meta analysis},
  author = {{M}athew, {I}. and {S}himelis, {H}. and {M}utema, {M}. and {M}inasny, {B}. and {C}haplot, {V}incent},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uantifying the ability of plants to store atmospheric inorganic carbon ({C}) in their biomass and ultimately in the soil as organic {C} for long duration is crucial for climate change mitigation and soil fertility improvement. {W}hile many independent studies have been performed on the transfer of atmospheric {C} to soils for single crop types, the objective of this study was to compare the ability of crops, which are most commonly found worldwide, to transfer {C} to soils, and the associated controlling factors. {W}e performed a meta-analysis of 227 research trials, which had reported {C} fluxes from plant to soil for different crops. {O}n average, crops assimilated 4.5 {M}g {C} ha(-1) yr(-1) from the atmosphere with values between 1.7 {M}g {C} ha(-1) yr(-1), for barley ({H}ordeum vulgare) and 5.2 {M}g {C} ha(-1) yr(-1) for maize ({Z}ea mays). {S}ixty-one percent (61%) of the assimilated {C} was allocated to shoots, 20% to roots, 7% to soils while 12% was respired back into the atmosphere as autotrophic respiration by plants. {M}aize and ryegrass ({L}olium perenne) had the greatest allocation to the soil (1.0 {M}g {C} ha(-1) yr(-1) or 19% total assimilation), followed by wheat ({T}riticum aestivum). 0.8 {M}g {C} ha(-1) yr(-1) , 23%) and rice ({O}ryza {S}ativa, 0.7 {M}g {C} ha(-1) yr(-1) , 20%). {C}arbon allocation to the soil positively correlated to {C} allocation to roots (r = 0.33, {P} < 0.05), while correlations between shoot and root biomass on the one hand and {C} allocation to shoots on the other hand were not significant. {T}he question on the long-term stability of the {C} transferred to soils remains unanswered.},
  keywords = {{C}arbon transfer ; {C} assimilation ; {P}lant {C} ; {C} labeling ; {C} flux ; {MONDE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {367},
  numero = {},
  pages = {art. 114230 [12p.]},
  ISSN = {0016-7061},
  year = {2020},
  DOI = {10.1016/j.geoderma.2020.114230},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078945},
}