@article{fdi:010075707,
  title = {{S}oil organic carbon fractions and humic substances are affected by land uses of {C}aatinga forest in {B}razil},
  author = {dos {S}antos, {U}. {J}. and {D}uda, {G}. {P}. and {M}arques, {M}. {C}. and de {M}edeiros, {E}. {V}. and {L}ima, {J}. {R}. {D}. and de {S}ouza, {E}. {S}. and {B}rossard, {M}ichel and {H}ammecker, {C}laude},
  editor = {},
  language = {{ENG}},
  abstract = {{C}aatinga is a {B}razilian dry ecosystem that occupies around 1 million km(2) and is one of the largest tropical dry forests of the world. {A}bout 46% of the area that was originally covered has been deforested. {L}and use can cause pronounced reduction in soil carbon stocks that play a major role in the global carbon cycle. {T}he objective of this study was to improve our understanding of the effect of land use on oxidizable carbon fractions, total carbon stocks and humic substances in different layers of soil in a {B}razilian semi-arid region. {W}e analyzed soils from tropical dry forest ({TDF}), forest succession with {A}nadenanthera falcata ({ANA}), with {T}abebuia alba ({TAB}), secondary scrubby regeneration ({SCR}), and non-irrigated maize ({MS}). {F}orests showed larger fractions of more labile carbon, except for {TDF}. {T}he most recalcitrant fraction of carbon stock, humin fraction stock, with the different land use decreased by 38-53% compared to {TDF}. {O}xidizable carbon fractions, carbon stocks, and humic fraction stocks were able to differentiate the successional land uses and agricultural cover from {TDF}, mainly in the 0-5 cm layer. {O}ur results show that changes in land use, especially with {ANA} forest succession, showed a larger labile carbon fraction, indicating easy decomposition and loss. {O}ur results provide an alternative tool for the management of deforested areas in tropical dry caatinga ecosystems. {T}his would contribute to the conservation of dry forest systems and could serve as guideline for sustainable management of agriculturally impacted caatinga areas.},
  keywords = {{C}arbon cycle ; labile carbon ; semi-arid ; total carbon stock ; tropical dry forest ; {BRESIL} ; {ZONE} {SEMIARIDE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{A}rid {L}and {R}esearch and {M}anagement},
  volume = {33},
  numero = {3},
  pages = {255--273},
  ISSN = {1532-4982},
  year = {2019},
  DOI = {10.1080/15324982.2018.1555871},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075707},
}