@article{fdi:23303,
  title = {13{C}/12{C} ratios of soil organic matter as indicators of vegetation changes in the {C}ongo},
  author = {{S}chwartz, {D}ominique and {M}ariotti, {A}. and {L}anfranchi, {R}. and {G}uillet, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he 13{C}/12{C} ratios were determined for the organic matter of all horizons of a podzol profile and of the {A}1 horizons of some ferrallitic soils, in some grass shoots and in a fossil root fragment from the {B}2h horizon of the podzol. {T}he isotope ratio in the organic matter of the {A}1 horizon of the podzol matches those in grass shoots from the present savanna vegetation. {T}he ratios in the lower horizons match those of organic matter in the {A}1 horizons of soils under forest and that of the fossil root fragment in the {B}2h horizon. {T}he ratios thus demonstrate that the humus enrichment of the {B}2h horizon of the podzol occurred while it was under forest vegetation and that the present grass vegetation did not take part in the podzolization process. {T}he differences also indicate that savanna replaced forest vegetation after the profile had been formed.},
  keywords = {{QUATERNAIRE} ; {DATATION} ; {PODZOLISATION} ; {C} 12 ; {C} 13 ; {CONGO} ; {CONGO} {BASSIN}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {39},
  numero = {2},
  pages = {97--103},
  ISSN = {0016-7061},
  year = {1986},
  DOI = {10.1016/0016-7061(86)90069-8},
  URL = {https://www.documentation.ird.fr/hor/fdi:23303},
}