Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors
There has been much debate about the uncertainties associated with the estimation of direct and indirect agricultural nitrous oxide (N2O) emissions in developing countries and in particular from tropical regions. In this study, we report an up-to-date review of the information published in peer-revi...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/80763 |
| _version_ | 1855526907032895488 |
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| author | Albanito, Fabrizio Lebender, Ulrike Cornulier, Thomas Sapkota, Tek Bahadur Brentrup, Frank Stirling, Clare M. Hillier, Jon |
| author_browse | Albanito, Fabrizio Brentrup, Frank Cornulier, Thomas Hillier, Jon Lebender, Ulrike Sapkota, Tek Bahadur Stirling, Clare M. |
| author_facet | Albanito, Fabrizio Lebender, Ulrike Cornulier, Thomas Sapkota, Tek Bahadur Brentrup, Frank Stirling, Clare M. Hillier, Jon |
| author_sort | Albanito, Fabrizio |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | There has been much debate about the uncertainties associated with the estimation of direct and indirect agricultural nitrous oxide (N2O) emissions in developing countries and in particular from tropical regions. In this study, we report an up-to-date review of the information published in peer-review journals on direct N2O emissions from agricultural systems in tropical and sub-tropical regions. We statistically analyze net-N2O-N emissions to estimate tropic-specific annual N2O emission factors (N2O-EFs) using a Generalized Additive Mixed Model (GAMM) which allowed the effects of multiple covariates to be modelled as linear or smooth non-linear continuous functions. Overall the mean N2O-EF was 1.2% for the tropics and sub-tropics, thus within the uncertainty range of IPCC-EF. On a regional basis, mean N2O-EFs were 1.4% for Africa, 1.1%, for Asia, 0.9% for Australia and 1.3% for Central & South America. Our annual N2O-EFs, estimated for a range of fertiliser rates using the available data, do not support recent studies hypothesising non-linear increase N2O-EFs as a function of applied N. Our findings highlight that in reporting annual N2O emissions and estimating N2O-EFs, particular attention should be paid in modelling the effect of study length on response of N2O. |
| format | Journal Article |
| id | CGSpace80763 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace807632025-12-08T09:54:28Z Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors Albanito, Fabrizio Lebender, Ulrike Cornulier, Thomas Sapkota, Tek Bahadur Brentrup, Frank Stirling, Clare M. Hillier, Jon food security climate change agriculture environmental monitoring environmental impact nitrous oxide environmental modelling There has been much debate about the uncertainties associated with the estimation of direct and indirect agricultural nitrous oxide (N2O) emissions in developing countries and in particular from tropical regions. In this study, we report an up-to-date review of the information published in peer-review journals on direct N2O emissions from agricultural systems in tropical and sub-tropical regions. We statistically analyze net-N2O-N emissions to estimate tropic-specific annual N2O emission factors (N2O-EFs) using a Generalized Additive Mixed Model (GAMM) which allowed the effects of multiple covariates to be modelled as linear or smooth non-linear continuous functions. Overall the mean N2O-EF was 1.2% for the tropics and sub-tropics, thus within the uncertainty range of IPCC-EF. On a regional basis, mean N2O-EFs were 1.4% for Africa, 1.1%, for Asia, 0.9% for Australia and 1.3% for Central & South America. Our annual N2O-EFs, estimated for a range of fertiliser rates using the available data, do not support recent studies hypothesising non-linear increase N2O-EFs as a function of applied N. Our findings highlight that in reporting annual N2O emissions and estimating N2O-EFs, particular attention should be paid in modelling the effect of study length on response of N2O. 2017-03-10 2017-04-21T22:03:50Z 2017-04-21T22:03:50Z Journal Article https://hdl.handle.net/10568/80763 en Open Access Springer Albanito, F., Lebender, U., Cornulier, T., Sapkota, T. B., Brentrup, F., Stirling, C., & Hillier, J. (2017). Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors. In Scientific Reports (Vol. 7, Issue 1). Springer Science and Business Media LLC. https://doi.org/10.1038/srep44235 |
| spellingShingle | food security climate change agriculture environmental monitoring environmental impact nitrous oxide environmental modelling Albanito, Fabrizio Lebender, Ulrike Cornulier, Thomas Sapkota, Tek Bahadur Brentrup, Frank Stirling, Clare M. Hillier, Jon Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title | Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title_full | Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title_fullStr | Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title_full_unstemmed | Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title_short | Direct Nitrous Oxide Emissions From Tropical And Sub-Tropical Agricultural Systems - A Review And Modelling Of Emission Factors |
| title_sort | direct nitrous oxide emissions from tropical and sub tropical agricultural systems a review and modelling of emission factors |
| topic | food security climate change agriculture environmental monitoring environmental impact nitrous oxide environmental modelling |
| url | https://hdl.handle.net/10568/80763 |
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