Application of biochar to soil and N2O emissions: Potential effects of blending fast-pyrolysis biochar with anaerobically digested slurry
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Application of biochar to soil and N2O emissions : Potential effects of blending fast-pyrolysis biochar with anaerobically digested slurry. / Bruun, E. W.; Müller-Stöver, D.; Ambus, Per Lennart; Hauggaard-Nielsen, H.
In: European Journal of Soil Science, Vol. 62, No. 4, 08.2011, p. 581-589.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Application of biochar to soil and N2O emissions
T2 - Potential effects of blending fast-pyrolysis biochar with anaerobically digested slurry
AU - Bruun, E. W.
AU - Müller-Stöver, D.
AU - Ambus, Per Lennart
AU - Hauggaard-Nielsen, H.
PY - 2011/8
Y1 - 2011/8
N2 - Soil applications of recalcitrant biochar offer the possibility of mitigating climate change effects through long-term carbon sequestration and potentially also by reducing emissions of the potent greenhouse gas nitrous oxide (N2O). This laboratory study examined the effect of combining a fast-pyrolysis biochar at small (1% by mass) and large (3%) concentrations with anaerobically digested slurry on soil N2O and carbon dioxide (CO2) emissions over a period of 55 days. The results showed that fast-pyrolysis biochar applied on its own increased N2O emissions from soil. However, when biochar was applied together with slurry, the larger biochar concentration decreased N2O emissions by 47%, relative to those from the slurry treatment with the smaller biochar concentration. Reduced N2O emissions coincided with enhanced soil microbial activity and immobilization of nitrogen. A combined application of biochar and anaerobic digested slurry could therefore be beneficial for cropping systems in terms of soil nitrogen retention while concurrently mitigating N2O fluxes and sequestering carbon in soil.
AB - Soil applications of recalcitrant biochar offer the possibility of mitigating climate change effects through long-term carbon sequestration and potentially also by reducing emissions of the potent greenhouse gas nitrous oxide (N2O). This laboratory study examined the effect of combining a fast-pyrolysis biochar at small (1% by mass) and large (3%) concentrations with anaerobically digested slurry on soil N2O and carbon dioxide (CO2) emissions over a period of 55 days. The results showed that fast-pyrolysis biochar applied on its own increased N2O emissions from soil. However, when biochar was applied together with slurry, the larger biochar concentration decreased N2O emissions by 47%, relative to those from the slurry treatment with the smaller biochar concentration. Reduced N2O emissions coincided with enhanced soil microbial activity and immobilization of nitrogen. A combined application of biochar and anaerobic digested slurry could therefore be beneficial for cropping systems in terms of soil nitrogen retention while concurrently mitigating N2O fluxes and sequestering carbon in soil.
UR - http://www.scopus.com/inward/record.url?scp=79960442258&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2389.2011.01377.x
DO - 10.1111/j.1365-2389.2011.01377.x
M3 - Journal article
AN - SCOPUS:79960442258
VL - 62
SP - 581
EP - 589
JO - Journal of Soil Sciences
JF - Journal of Soil Sciences
SN - 1351-0754
IS - 4
ER -
ID: 162182176