%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Zhang, C.
%A Langlest, R.
%A Velasquez, E.
%A Pando, Anne
%A Brunet, Didier
%A Dai, J.
%A Lavelle, Patrick
%T Cast production and NIR spectral signatures of Aporrectodea caliginosa fed soil with different amounts of half-decomposed Populus nigra litter
%D 2009
%L fdi:010046334
%G ENG
%J Biology and Fertility of Soils
%@ 0178-2762
%K Earthworm casts ; NIR spectral signature ; Soil macroaggregates ; Aporrectodea caliginosa
%M ISI:000269418000006
%N 8
%P 839-844
%R 10.1007/s00374-009-0395-6
%U https://www.documentation.ird.fr/hor/fdi:010046334
%> https://www.documentation.ird.fr/intranet/publi/2009/09/010046334.pdf
%V 45
%W Horizon (IRD)
%X Sub-adult individuals of Aporrectodea caliginosa were incubated for 16 weeks under laboratory cultures in a soil treated with 0%, 10% or 50% of a Populus nigra half-decomposed leaves, respectively. Growth was maximum in the 50% organic matter treatment and cocoon production occurred. Average soil ingestion rates decreased from 1.56 g/g(-1) fresh weight of worm per day(-1) in control soil to 1.17 and 0.5 g, respectively, in treatments with 10% and 50% half-decomposed litter. Surface casts never comprised more than 10% of total cast production. Near-infrared spectrometry (NIRS)signatures of digested and non-ingested soil significantly differed and showed a rather constant effect of digestion, independent of the organic matter content (p < 0.01). These results confirm the value of NIRS spectral signatures as indicators of the origin of soil aggregates and biological processes involved in soil aggregation.
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