@article{fdi:010080530,
  title = {{T}o what extent do ageing and soil properties influence {A}mynthas khami cast properties ? {E}vidence from a small watershed in northern {V}ietnam},
  author = {{B}ottinelli, {N}icolas and {M}aeght, {J}ean-{L}uc and {L}e, {V}. {N}. {T}. and {B}oonchamni, {C}. and {D}oan, {T}. {T}. and {T}ran, {T}. {M}. and {A}roui {B}oukbida, {H}anane and {S}maili, {L}otfi and {J}ouquet, {P}ascal},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the variables explaining earthworm cast properties remains a key challenge in soil ecology. this purpose, this study aimed to determine the relationships between the physical and chemical properties earthworm casts and those of their surrounding soil environment. {S}urface earthworm casts (recently emitted degraded) produced by the anecic earthworm {A}mynthas khami ({T}hai 1984) and adjacent topsoil aggregates without traces of earthworm activity were sampled in 50 different locations covering a small watershed northern {V}ietnam. {W}e determined the organic carbon content, the spectral signatures of aggregates and humic index of organic matter via mid-infrared spectroscopy and analysis of p{H}, hydrophobicity, wet aggregate stability and bulk density of soil aggregates. {W}hile the physical properties of casts were not related to those of topsoil aggregates, correlations were measured between cast and topsoil aggregate chemical properties. {T}he values of hydrophobicity, p{H}, bulk density and organic carbon were higher in casts than in topsoil aggregates, whereas the humic index values were lower in casts than in topsoil aggregates. {N}o difference was measured between recent and degraded casts, with the exception of their spectral signatures. {I}nterestingly, the effect of {A}. khami was more important in soils presenting a lower organic carbon content or higher humic index, whereas its influence on soil p{H} was constant (i.e., the same regardless of the p{H} of the topsoil). {I}n conclusion, this study suggests a discrepancy between impact of {A}. khami on soil physical and chemical properties. {T}he results also show that the spatial variability cast physical properties cannot be related with that of topsoil environment physical properties.},
  keywords = {{E}arthworm ; {A}ggregation ; {V}ietnam ; {P}hysical properties ; {C}hemical properties ; {VIET} {NAM}},
  booktitle = {},
  journal = {{A}pplied {S}oil {E}cology},
  volume = {158},
  numero = {},
  pages = {103792 [ ]},
  ISSN = {0929-1393},
  year = {2021},
  DOI = {10.1016/j.apsoil.2020.103792},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080530},
}