@article{fdi:010077196,
  title = {{S}oil {N}2{O}, {CH}4, and {CO}2 fluxes in forest, grassland, and tillage/no-tillage croplands in {F}rench {G}uiana ({A}mazonia)},
  author = {{P}etitjean, {C}. and {L}e {G}all, {C}. and {P}ontet, {C}. and {F}ujisaki, {K}enji and {G}arric, {B}. and {H}orth, {J}. {C}. and {H}enault, {C}. and {P}errin, {A}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he agricultural landscape of {F}rench {G}uiana ({A}mazonia) is expected to undergo substantial change as a result of rapid population growth in the region. {S}uch changes in the landscape will lead to the conversion of tropical forests into land destined for agricultural use. {L}ittle information is available on the effect of different agricultural systems on greenhouse gas ({GHG}) emissions in {F}rench {G}uiana. {F}or our experiment, two hectares of forest were cleared, without the use of fire, at the {C}ombi experimental site (sandy-clayey {F}erralsol) at the end of 2008. {A}fter one year with legume and grass cover, the site was modified to include the following three fertilized agricultural systems: (1) {G}rassland ({B}rachiaria ruziziensis, mowed), (2) cropland (maize/soybean rotation) with disc tillage, and (3) cropland (maize/soybean rotation) with no-tillage in direct seeding. {S}oil {N}2{O}, {CH}4, and {CO}2 fluxes were measured with dark chambers from {M}ay 2011 to {N}ovember 2014. {O}ur results show that grassland was a significantly lower emitter of {N}2{O} but a significantly higher emitter of {CH}4 compared to the two cropland systems studied. {W}e did not observe significant differences between the two cropland systems for {N}2{O} and {CH}4 fluxes. {M}easurements of the net ecosystem {CO}2 exchange would be useful to better compare the role of different agricultural systems as a source of {GHG}s.},
  keywords = {{A}mazonia ; soil {CO}2, {CH}4, and {N}2{O} fluxes ; {F}erralsol ; fertilized annual ; crops ; fertilized grassland ; {F}rench {G}uiana ; land-use change ; sandy-clayey soil ; tropical forest ; {GUYANE} {FRANCAISE} ; {AMAZONIE}},
  booktitle = {},
  journal = {{S}oil {S}ystems},
  volume = {3},
  numero = {2},
  pages = {art. 29 [20 p.]},
  year = {2019},
  DOI = {10.3390/soilsystems3020029},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077196},
}