Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period
Freeze-thaw (FT) events in soils can cause a burst of nitrous oxide (N2O) and enhance N leaching during the spring-thaw event. We studied whether a soil amended with wood-derived (spruce chips) biochar (10 tonnes ha-1), produced at rather low temperatures (400-450°C), could reduce the burst of N2O a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Scientific Agricultural Society of Finland
2013-12-01
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| Series: | Agricultural and Food Science |
| Online Access: | https://journal.fi/afs/article/view/7887 |
| _version_ | 1828273090537193472 |
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| author | Riitta Kettunen Sanna Saarnio |
| author_facet | Riitta Kettunen Sanna Saarnio |
| author_sort | Riitta Kettunen |
| collection | DOAJ |
| description | Freeze-thaw (FT) events in soils can cause a burst of nitrous oxide (N2O) and enhance N leaching during the spring-thaw event. We studied whether a soil amended with wood-derived (spruce chips) biochar (10 tonnes ha-1), produced at rather low temperatures (400-450°C), could reduce the burst of N2O and the risk of N leaching from an agricultural soil after a FT event. A short-term laboratory experiment (4 weeks) was conducted with 24 vegetated (Phleum pratense) mesocosms (12 controls, 12 biochar-treated) that had spent a dormant season in the dark at 15°C for two months after the growing season. N2O efflux to the atmosphere and ammonium (NH4+-N) and nitrate (NO3-N) in the percolated soil water were monitored before and after the FT event. N2O was monitored with the dark chamber method and analyzed using a gas chromatograph. We found that soil amended biochar can significantly diminish the burst of N2O after the soil FT event (by 61% just after FT event) and substantially reduce the risk of NO3-N and NH4+-N leaching from the agricultural soil. Compared to the control, the decrement in concentrations of NO3-N and NH4+-N in water percolated through the biochar amended soil in the mesocosms was 58% and 22%, respectively. |
| first_indexed | 2024-04-13T06:16:46Z |
| format | Article |
| id | doaj.art-f0611a46cdcb4caa8a1d059ff1dada7d |
| institution | Directory Open Access Journal |
| issn | 1459-6067 1795-1895 |
| language | English |
| last_indexed | 2024-04-13T06:16:46Z |
| publishDate | 2013-12-01 |
| publisher | Scientific Agricultural Society of Finland |
| record_format | Article |
| series | Agricultural and Food Science |
| spelling | doaj.art-f0611a46cdcb4caa8a1d059ff1dada7d2022-12-22T02:58:49ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18952013-12-01224Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw periodRiitta KettunenSanna SaarnioFreeze-thaw (FT) events in soils can cause a burst of nitrous oxide (N2O) and enhance N leaching during the spring-thaw event. We studied whether a soil amended with wood-derived (spruce chips) biochar (10 tonnes ha-1), produced at rather low temperatures (400-450°C), could reduce the burst of N2O and the risk of N leaching from an agricultural soil after a FT event. A short-term laboratory experiment (4 weeks) was conducted with 24 vegetated (Phleum pratense) mesocosms (12 controls, 12 biochar-treated) that had spent a dormant season in the dark at 15°C for two months after the growing season. N2O efflux to the atmosphere and ammonium (NH4+-N) and nitrate (NO3-N) in the percolated soil water were monitored before and after the FT event. N2O was monitored with the dark chamber method and analyzed using a gas chromatograph. We found that soil amended biochar can significantly diminish the burst of N2O after the soil FT event (by 61% just after FT event) and substantially reduce the risk of NO3-N and NH4+-N leaching from the agricultural soil. Compared to the control, the decrement in concentrations of NO3-N and NH4+-N in water percolated through the biochar amended soil in the mesocosms was 58% and 22%, respectively.https://journal.fi/afs/article/view/7887 |
| spellingShingle | Riitta Kettunen Sanna Saarnio Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period Agricultural and Food Science |
| title | Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period |
| title_full | Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period |
| title_fullStr | Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period |
| title_full_unstemmed | Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period |
| title_short | Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period |
| title_sort | biochar can restrict n2o emissions and the risk of nitrogen leaching from an agricultural soil during the freeze thaw period |
| url | https://journal.fi/afs/article/view/7887 |
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