@article{fdi:010067701,
  title = {{N}o-tillage lessens soil {CO}2 emissions the most under arid and sandy soil conditions : results from a meta-analysis},
  author = {{A}bdalla, {K}. and {C}hivenge, {P}. and {C}iais, {P}. and {C}haplot, {V}incent},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he management of agroecosystems plays a crucial role in the global carbon cycle with soil tillage leading to known organic carbon redistributions within soils and changes in soil {CO}2 emissions. {Y}et, discrepancies exist on the impact of tillage on soil {CO}2 emissions and on the main soil and environmental controls. {A} meta-analysis was conducted using 46 peer-reviewed publications totaling 174 paired observations comparing {CO}2 emissions over entire seasons or years from tilled and untilled soils across different climates, crop types and soil conditions with the objective of quantifying tillage impact on {CO}2 emissions and assessing the main controls. {O}n average, tilled soils emitted 21 % more {CO}2 than untilled soils, which corresponded to a significant difference at {P} < 0.05. {T}he difference increased to 29 % in sandy soils from arid climates with low soil organic carbon content ({SOC}({C}) < 1 %) and low soil moisture, but tillage had no impact on {CO}2 fluxes in clayey soils with high background {SOCC} (> 3 %). {F}inally, nitrogen fertilization and crop residue management had little effect on the {CO}2 responses of soils to no-tillage. {T}hese results suggest no-tillage is an effective mitigation measure of carbon dioxide losses from dry land soils. {T}hey emphasize the importance of including information on soil factors such as texture, aggregate stability and organic carbon content in global models of the carbon cycle.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {13},
  numero = {12},
  pages = {3619--3633},
  ISSN = {1726-4170},
  year = {2016},
  DOI = {10.5194/bg-13-3619-2016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067701},
}