@article{fdi:010072794,
  title = {{B}iocontrolled soil nutrient distribution under the influence of an oxalogenic-oxalotrophic ecosystem},
  author = {{P}ons, {S}. and {B}indschedler, {S}. and {S}ebag, {D}avid and {J}unier, {P}. and {V}errecchia, {E}. and {C}ailleau, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground and {A}ims {T}he oxalate-carbonate pathway ({OCP}) has been observed in acidic tropical soils with low alkaline cation content where compartments are transient and fed by the rapid turnover of organic matter. {B}y acting on edaphic parameters, the {OCP} may influence soil nutrient distribution. {T}his study aims at assessing the influence of the {OCP} on soil nutrients within an agroforestry system associated to oxalogenic iroko trees. {M}ethods {S}oil nutrient distribution was studied in a 30 m long and 1 m deep transect starting at the iroko tree towards the vegetation surrounding it. {R}esults {P}rocesses controlling nutrient distributions varied with both distance and depth. {T}he tree drastically impacted edaphic variables, in the first instance p{H}. {C}hanges in p{H} generated gradients of calcium and magnesium, both of the exchangeable and the total fraction. {I}n contrast, total phosphorus and potassium distribution were mostly influenced by depth. {C}onclusions {T}his downward gradient fits the "plant cycling model" that explains the effect of vegetation on the recharge of soil nutrients. {T}his is the first example of the effect of the {OCP} on soil nutrient distribution. {C}onsidering that the {OCP} is not restricted to the iroko tree, this study highlights a more general pattern of forest dynamics developed on highly weathered tropical soils.},
  keywords = {{G}radient ; {N}utrient dynamics ; {O}xalate ; {S}oil p{H} ; {T}ropical ecosystem ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{P}lant and {S}oil},
  volume = {425},
  numero = {1-2},
  pages = {145--160},
  ISSN = {0032-079{X}},
  year = {2018},
  DOI = {10.1007/s11104-018-3573-1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072794},
}