@article{fdi:010078105,
  title = {{T}he distribution of {S}ilicon in soil is influenced by termite bioturbation in {S}outh {I}ndian forest soils},
  author = {{J}ouquet, {P}ascal and {J}amoteau, {F}. and {M}ajumdar, {S}. and {P}odwojewski, {P}ascal and {N}agabovanalli, {P}. and {C}aner, {L}. and {B}arboni, {D}. and {M}eunier, {J}. {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}i is one of the most abundant element on earth and an abundant literature shows its beneficial effects on plant growth and resistance. {W}e here question the influence of termites, as key soil bioturbators, on the distribution of {S}i in a tropical soil. {T}he abundance and forms of {S}i in termite mounds build by {O}dontotermes obelus ({TM}) or in the soil eroded from {TM} but redistributed on the ground surface ({EROD}) were compared to those measured in the 0-5 ({C}trl(0-5)) and 70-120 cm soil layers ({C}trl(70-120)). {A}lthough termites use the soil from {C}trl(70)-(1)(20) for building their mounds, we found that {TM} and {EROD} had intermediate soil physical, chemical and mineralogical properties between {C}trl(0-5) and {C}trl(70)(-1)(20). {C}lay content was not significantly different between soil materials. {H}owever, the lower variability measured in {TM} than in the soil suggested that termites used soil layers with higher amounts of clay fraction and with a preference especially for layers enriched in 2:1 clay minerals (smectite) most likely because they provide better physical properties in terms of plasticity and water retention than kaolinite. {F}inally, phytoliths and bioavailable {S}i ({S}i-{CC}) contents were increased in {TM} in comparison with {C}trl(70)(-1)(20), suggesting an incorporation of phytoliths in termite construction through their saliva and/or an increasing availability of {S}i-{CC} from the minerals. {I}n conclusion, this study highlights how termites, through their feeding and building activities, impact {S}i distribution in tropical soils.},
  keywords = {{S}i ; {C}lay ; {M}ineralogy ; {P}hytoliths ; {B}ioturbation ; {S}oil profile ; {INDE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {372},
  numero = {},
  pages = {114362 [8]},
  ISSN = {0016-7061},
  year = {2020},
  DOI = {10.1016/j.geoderma.2020.114362},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078105},
}