@article{fdi:010049525,
  title = {{U}tilization of near infrared reflectance spectroscopy ({NIRS}) to quantify the impact of earthworms on soil and carbon erosion in steep slope ecosystem : a study case in {N}orthern {V}ietnam},
  author = {{J}ouquet, {P}ascal and {H}enry-des-{T}ureaux, {T}. and {M}athieu, {J}. and {T}huy, {D}. {T}. and {T}oan, {T}. {D}. and {O}range, {D}idier},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his work focuses on a new approach to quantify the effects of above-ground earthworm's activity on soil erosion in steep slope ecosystems such as in {N}orthern {V}ietnam. {I}n these areas and in many others in the world, soil erosion becomes a major issue while the factors that determine it are still misunderstood. {E}arthworm's activity is believed to influence soil erosion rate, but we are still unable to precisely quantify their contribution to soil erosion. {I}n this study, we used {N}ear {I}nfrared {R}eflectance {S}pectroscopy ({NIRS}) to quantify the proportion of soil aggregate in eroded soil coming from earthworm activity. {T}his was done by generating {NIRS} signatures corresponding to different soil surface aggregates (above-ground soil casts produced by earthworms vs. surrounding topsoil). {I}n order to test the proposed approach, we compared the {NIRS}-signature of eroded soil sediments to those of earthworms' casts and of the surrounding soils. {O}ur results strongly supported that {NIRS} spectra might be used as "fingerprints" to identify the origin of soil aggregates. {A}lthough earthworms are generally assumed to play a favorable role in promoting soil fertility and ecosystem services, this method shows that cast aggregates constitute about 36 and 77% of sediments in two tropical plantations, {P}aspalum atratum and {P}anicum maximum plantations, respectively. {I}n light with these results, we estimated that earthworms led to an annual loss of 3.3 and 15.8 kg of carbon ha(-1) yr(-1), respectively in {P}. atratum and {P}. maximum agroecosystems.},
  keywords = {{S}oil erosion ; {C}arbon loss ; {E}arthworm activity ; {N}ear {I}nfrared ; {R}eflectance {S}pectroscopy ; {V}ietnam ; {A}mynthas khami},
  booktitle = {},
  journal = {{C}atena},
  volume = {81},
  numero = {2},
  pages = {113--116},
  ISSN = {0341-8162},
  year = {2010},
  DOI = {10.1016/j.catena.2010.01.010},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049525},
}