The DOI matches its Crossref record; 57 of the 59 references it cites were found in a registry or an index.
Biochar suppresses N2O emissions while maintaining N availability in a sandy loam soil
Open accessAbstract
Nitrous oxide (N2O) from agricultural soil is a significant source of greenhouse gas emissions. Biochar amendment can contribute to climate change mitigation by suppressing emissions of N2O from soil, although the mechanisms underlying this effect are poorly understood. We investigated the effect of biochar on soil N2O emissions and N cycling processes by quantifying soil N immobilisation, denitrification, nitrification and mineralisation rates using 15N pool dilution techniques and the FLUAZ numerical calculation model. We then examined whether biochar amendment affected N2O emissions and the availability and transformations of N in soils.Our results show that biochar suppressed cumulative soil N2O production by 91% in near-saturated, fertilised soils. Cumulative denitrification was reduced by 37%, which accounted for 85–95 % of soil N2O emissions. We also found that physical/chemical and biological ammonium (NH4+) immobilisation increased with biochar amendment but that nitrate (NO3−) immobilisation decreased. We concluded that this immobilisation was insignificant compared to total soil inorganic N content. In contrast, soil N mineralisation significantly increased by 269% and nitrification by 34% in biochar-amended soil.These findings demonstrate that biochar amendment did not limit inorganic N availability to nitrifiers and denitrifiers, therefore limitations in soil NH4+ and NO3− supply cannot explain the suppression of N2O emissions. These results support the concept that biochar application to soil could significantly mitigate agricultural N2O emissions through altering N transformations, and underpin efforts to develop climate-friendly agricultural management techniques.
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“Besides, N 2 O emission is not necessarily associated with limited N bioavailability in biochar amended soil, suggesting that chemical fertility can be remained apart from a reduction of GHG emissions (Case et al. 2015).”
From Role of biochar toward carbon neutrality (2023) · cites this paper as Case et al. 2015
In the citing paper
“Besides, N 2 O emission is not necessarily associated with limited N bioavailability in biochar amended soil, suggesting that chemical fertility can be remained apart from a reduction of GHG emissions (Case et al. 2015).”
From Role of biochar toward carbon neutrality (2023) · cites this paper as Case et al. 2015
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Preparation, modification and environmental application of biochar: A review
Wang, J., & Wang, S. (2019) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2019.04.282 · Cited by 2,345
Biochar for crop production: potential benefits and risks
Hussain, M., Farooq, M., Nawaz, A., Al-Sadi, A. M., Solaiman, Z. M., Alghamdi, S. S., Ammara, U., Ok, Y. S., & Siddique, K. H. M. (2017) · Journal of Soils and Sediments · doi:10.1007/s11368-016-1360-2 · Cited by 532
Shakoor, A., Shakoor, S., Rehman, A., Ashraf, F., Abdullah, M., Shahzad, S. M., Farooq, T. H., Ashraf, M., Manzoor, M. A., Altaf, M. M., et al. (2020) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2020.124019 · Cited by 337
Gabhane, J., Bhange, V. P., Patil, P. D., Bankar, S. T., & Kumar, S. (2020) · SN Applied Sciences · doi:10.1007/s42452-020-3121-5 · Cited by 306
Role of biochar toward carbon neutrality
Wang, L., Deng, J., Yang, X., Hou, R., & Hou, D. (2023) · Carbon Research · doi:10.1007/s44246-023-00035-7 · Cited by 195
Metadata
- Authors
- Case, S. D. C., McNamara, N. P., Reay, D. S., Stott, A. W., Grant, H. K., & Whitaker, J.
- Affiliations
- UK Centre for Ecology & Hydrology (GB)
- University of Edinburgh (GB)
- Corresponding author
- Whitaker, Jeanette
- Venue
- Soil Biology and Biochemistry
- Publisher
- Elsevier BV
- Published
- 2015-02
- Volume
- 81
- Pages
- 178-185
- ISSN
- 0038-0717 (ISSN-L)
- OpenAlex
- W1964046491
- Cited by
- 229
- References
- 59
- Citations by year
- 2026: 16 · 2025: 9 · 2024: 34 · 2023: 16 · 2022: 30 · 2021: 28 · 2020: 19 · 2019: 21 · 2018: 22 · 2017: 14 · 2016: 14 · 2015: 5
- FWCI
- 15.57
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- Soil Biology and Biochemistry (publishedVersion)
- NERC Open Research Archive (Natural Environment Research Council) (acceptedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
- Funders
- Natural Environment Research Council (NEC03487)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
- Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
- Keywords
- biochar, nitrous oxide emissions, soil nitrogen cycling, denitrification, nitrification, nitrogen mineralization, soil nitrogen availability, sandy loam soil, greenhouse gas emissions reduction, 15N pool dilution
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