@article{fdi:010053790,
  title = {{B}lack carbon estimation in {F}rench calcareous soils using chemo-thermal oxidation method},
  author = {{C}aria, {G}. and {A}rrouays, {D}. and {D}ubromel, {E}. and {J}olivet, {C}. and {R}ati{\'e}, {C}. and {B}ernoux, {M}artial and {B}arth{\`e}s, {B}ernard and {B}runet, {D}idier and {G}rinand, {C}lovis},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e studied the black carbon ({BC}) content of ca. 405 samples from {F}rench topsoil and artificial soil and carbonate mixtures. {O}ur protocol involved three main steps: (i) decarbonation by {HC}l, (ii) elimination of non-pyrogenic organic carbon in a furnace at 375 degrees {C}, and (iii) quantification of residual carbon by {CHN} analysis. {BC} content increased for calcareous soils according to their carbonates content. {S}ubsequent analyses confirmed the existence of a methodological artefact for {BC} determination only in calcareous soils. {D}ecarbonation changes the thermal properties of organic matter, creating more recalcitrant carbon than in the initial sample. {H}igher {C}a{CO}3 and organic carbon content results in a more pronounced artefact. {T}he reversal of the first two steps of the chemo-thermal oxidation method (i. e. thermal oxidation before soil decarbonation) eliminates this artefact. {O}verall, our results suggest that {BC} content may have been overestimated in a large number of studies on calcareous soils.},
  keywords = {{B}lack carbon ; calcareous soils ; {CTO} methods ; decarbonation ; thermal oxidation ; artefact},
  booktitle = {},
  journal = {{S}oil {U}se and {M}anagement},
  volume = {27},
  numero = {3},
  pages = {333--339},
  ISSN = {0266-0032},
  year = {2011},
  DOI = {10.1111/j.1475-2743.2011.00349.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053790},
}