@article{fdi:010054213,
  title = {{S}oil cover and landscape evolution in the {S}enegal floodplain : a review and synthesis of processes and interactions during the late {H}olocene},
  author = {{F}urian, {S}. and {M}ohamedou, {A}. {O}. and {H}ammecker, {C}laude and {M}aeght, {J}ean-{L}uc and {B}arbi{\'e}ro, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this paper is to summarize the successive biological, pedological, hydrodynamic, geomorphological and geochemical processes that have occurred in the {S}enegal valley, and to describe how their interactions during the late {H}olocene conditioned soil cover formation and landscape evolution. {P}otential acidity accumulated as pyrite in the floodplain sediment during the last marine transgressions, and was expressed during the following regressions because of oxidation. {S}oil acidification was mitigated by the soil buffer capacity and by the interaction with the slightly alkaline continental freshwater of the river. {T}wo pedogenetic transformation processes that resulted from the succession of acidic and neutral conditions, transformed unripe muds with pyrite (potential {A}cid {S}ulphate soil) to actual {A}cid {S}ulphate soils, and then to {V}ertisols. {G}eochemical modelling with {PHREEQC} quantitatively confirmed the feasibility of the processes involved. {T}hese two pedogenetic processes also controlled two independent salt accumulation processes: (i) the transformation of shell accumulation beds into gypsum layers and (ii) aeolian deflation and formation of clay dunes. {T}he study shows that pedogenetic effects on alluvial material can lead to contrasting horizons that cannot be explained stratigraphically. {I}t also shows that the presence of saline areas in the {S}enegal middle valley results from much more complex processes than a simple salt deposition during transgressions.},
  keywords = {{SENEGAL} ; {SENEGAL} {FLEUVE}},
  booktitle = {},
  journal = {{E}uropean {J}ournal of {S}oil {S}cience},
  volume = {62},
  numero = {6},
  pages = {902--912},
  ISSN = {1351-0754},
  year = {2011},
  DOI = {10.1111/j.1365-2389.2011.01398.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010054213},
}