@article{fdi:010065261,
  title = {{I}mpact of alley cropping agroforestry on stocks, forms and spatial distribution of soil organic carbon : a case study in a {M}editerranean context},
  author = {{C}ardinael, {R}. and {C}hevallier, {T}iphaine and {B}arth{\`e}s, {B}ernard and {S}aby, {N}. {P}. {A}. and {P}arent, {T}. and {D}upraz, {C}. and {B}ernoux, {M}artial and {C}henu, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}groforestry systems, i.e., agroecosystems combining trees with farming practices, are of particular interest as they combine the potential to increase biomass and soil carbon ({C}) storage while maintaining an agricultural production. {H}owever, most present knowledge on the impact of agroforestry systems on soil organic carbon ({SOC}) storage comes from tropical systems. {T}his study was conducted in southern {F}rance, in an 18-year-old agroforestry plot, where hybrid walnuts ({J}uglans regia x nigra {L}) are intercropped with durum wheat ({T}riticum turgidum {L} subsp. durum), and in an adjacent agricultural control plot, where durum wheat is the sole crop. {W}e quantified {SOC} stocks to 2.0 m depth and their spatial variability in relation to the distance to the trees and to the tree rows. {T}he distribution of additional {SOC} storage in different soil particle-size fractions was also characterized. {SOC} accumulation rates between the agroforestry and the agricultural plots were 248 +/- 31 kg {C} ha(-1) yr(-1) for an equivalent soil mass ({ESM}) of 4000 {M}g ha(-1) (to 26-29 cm depth) and 350 +/- 41 kg {C} ha(-1) yr(-1) for an {ESM} of 15,700 {M}g ha(-1) (to 93-98 cm depth). {SOC} stocks were higher in the tree rows where herbaceous vegetation grew and where the soil was not tilled, but no effect of the distance to the trees (0 to 10 m) on {SOC} stocks was observed. {M}ost of the additional {SOC} storage was found in coarse organic fractions (50-200 and 200-2000 mu m), which may be rather labile fractions. {A}ll together our study demonstrated the potential of alley cropping agroforestry systems under {M}editerranean conditions to store {SOC}, and questioned the stability of this storage.},
  keywords = {{S}oil mapping ; {S}oil organic carbon storage ; {S}oil organic carbon saturation ; {D}eep soil organic carbon stocks ; {V}isible and near infrared spectroscopy ; {P}article-size fractionation ; {FRANCE} ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {259},
  numero = {},
  pages = {288--299},
  ISSN = {0016-7061},
  year = {2015},
  DOI = {10.1016/j.geoderma.2015.06.015},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065261},
}