%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES
%A Chevallier, Tiphaine
%A Voltz, M.
%A Blanchart, Eric
%A Chotte, Jean-Luc
%A Eschenbrenner, Vincent
%A Mahieu, M.
%A Albrecht, Alain
%T Spatial and temporal changes of soil C after establishment of a pasture on a long-term cultivated vertisol (Martinique)
%D 2000
%L fdi:010021104
%G ENG
%J Geoderma
%@ 0016-7061
%K PATURAGE ; SOL CULTIVE ; SOL DEGRADE ; STOCK ORGANIQUE ; CARBONE ORGANIQUE ; RAPPORT C/N ; VARIATION INTERANNUELLE ; GEOSTATISTIQUE
%K MARTINIQUE
%P 43-58
%R 10.1016/S0016-7061(99)00064-6
%U https://www.documentation.ird.fr/hor/fdi:010021104
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_53-54/010021104.pdf
%V 94
%W Horizon (IRD)
%X In 1991 in Martinique (F.W.I.), a #Digitaria decumbens$ pasture was established on a vertisol that had supported a market-gardening culture for more than 10 years. Organic matter stock restoration was investigated by measuring carbon contents (C contents) and carbon/nitrogen (C/N) ratios each year from 1992 to 1997. Relations between and soil properties (particle-size distribution, soil depth) and C contents were studied. Furthermore, geostatistical analyses of C contents were realised in order to characterise the C storgae in soil at plot scale. The increase of C contents from 1992 (Y0) to 1997 (Y5) was 5 g C/(kg soil) in the topsoil (0-10 cm) and 2.5 g C/kg soil, or 7.5 Mg C/ha, in the 0-30-cm layer. The intensity of organic C storage had a spatial pattern, although the C/N ratio remained homogeneous across the plot. However, there was no correlation between the C increase and the particle-size distribution or the depth of the soil. In the topsoil, the local variability of the C contents increased with time until 1995 and then there was a gradually spreading of this local variability. Plant-cover distribution and physical structure of vertisol could explain the evolution of spatial structure of the soil C content. (Résumé d'auteur)
%$ 068PEDAPP ; 076AGRO