The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage
Global rice production systems face two opposing challenges: the need to increase production to accommodate the world's growing population while simultaneously reducing greenhouse gas (GHG) emissions. Adaptations to drainage regimes are one of the most promising options for methane mitigation in ric...
| Autores principales: | , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2018
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/88080 |
| _version_ | 1855529373055057920 |
|---|---|
| author | Islam, Syed Faiz-ul Groenigen, Jan Willem van Jensen, Lars Stoumann Sander, Björn Ole Neergaard, Andreas de |
| author_browse | Groenigen, Jan Willem van Islam, Syed Faiz-ul Jensen, Lars Stoumann Neergaard, Andreas de Sander, Björn Ole |
| author_facet | Islam, Syed Faiz-ul Groenigen, Jan Willem van Jensen, Lars Stoumann Sander, Björn Ole Neergaard, Andreas de |
| author_sort | Islam, Syed Faiz-ul |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Global rice production systems face two opposing challenges: the need to increase production to accommodate the world's growing population while simultaneously reducing greenhouse gas (GHG) emissions. Adaptations to drainage regimes are one of the most promising options for methane mitigation in rice production. Whereas several studies have focused on mid-season drainage (MD) to mitigate GHG emissions, early-season drainage (ED) varying in timing and duration has not been extensively studied. However, such ED periods could potentially be very effective since initial available C levels (and thereby the potential for methanogenesis) can be very high in paddy systems with rice straw incorporation. This study tested the effectiveness of seven drainage regimes varying in their timing and duration (combinations of ED and MD) to mitigate CH4 and N2O emissions in a 101-day growth chamber experiment. Emissions were considerably reduced by early-season drainage compared to both conventional continuous flooding (CF) and the MD drainage regime. The results suggest that ED + MD drainage may have the potential to reduce CH4 emissions and yield-scaled GWP by 85–90% compared to CF and by 75–77% compared to MD only. A combination of (short or long) ED drainage and one MD drainage episode was found to be the most effective in mitigating CH4 emissions without negatively affecting yield. In particular, compared with CF, the long early-season drainage treatments LE + SM and LE + LM significantly (p < 0.01) decreased yield-scaled GWP by 85% and 87% respectively. This was associated with carbon being stabilised early in the season, thereby reducing available C for methanogenesis. Overall N2O emissions were small and not significantly affected by ED. It is concluded that ED + MD drainage might be an effective low-tech option for small-scale farmers to reduce GHG emissions and save water while maintaining yield. |
| format | Journal Article |
| id | CGSpace88080 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace880802025-02-19T14:25:50Z The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage Islam, Syed Faiz-ul Groenigen, Jan Willem van Jensen, Lars Stoumann Sander, Björn Ole Neergaard, Andreas de food security climate change agriculture greenhouse gases Global rice production systems face two opposing challenges: the need to increase production to accommodate the world's growing population while simultaneously reducing greenhouse gas (GHG) emissions. Adaptations to drainage regimes are one of the most promising options for methane mitigation in rice production. Whereas several studies have focused on mid-season drainage (MD) to mitigate GHG emissions, early-season drainage (ED) varying in timing and duration has not been extensively studied. However, such ED periods could potentially be very effective since initial available C levels (and thereby the potential for methanogenesis) can be very high in paddy systems with rice straw incorporation. This study tested the effectiveness of seven drainage regimes varying in their timing and duration (combinations of ED and MD) to mitigate CH4 and N2O emissions in a 101-day growth chamber experiment. Emissions were considerably reduced by early-season drainage compared to both conventional continuous flooding (CF) and the MD drainage regime. The results suggest that ED + MD drainage may have the potential to reduce CH4 emissions and yield-scaled GWP by 85–90% compared to CF and by 75–77% compared to MD only. A combination of (short or long) ED drainage and one MD drainage episode was found to be the most effective in mitigating CH4 emissions without negatively affecting yield. In particular, compared with CF, the long early-season drainage treatments LE + SM and LE + LM significantly (p < 0.01) decreased yield-scaled GWP by 85% and 87% respectively. This was associated with carbon being stabilised early in the season, thereby reducing available C for methanogenesis. Overall N2O emissions were small and not significantly affected by ED. It is concluded that ED + MD drainage might be an effective low-tech option for small-scale farmers to reduce GHG emissions and save water while maintaining yield. 2018-01 2017-09-28T13:17:54Z 2017-09-28T13:17:54Z Journal Article https://hdl.handle.net/10568/88080 en Open Access Elsevier Islam SF, van Groenigen JW, Jensen LS, Sander BO, de Neergaard A. 2018. The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage. Science of The Total Environment, 612:1329-1339. |
| spellingShingle | food security climate change agriculture greenhouse gases Islam, Syed Faiz-ul Groenigen, Jan Willem van Jensen, Lars Stoumann Sander, Björn Ole Neergaard, Andreas de The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title | The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title_full | The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title_fullStr | The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title_full_unstemmed | The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title_short | The effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early-season drainage |
| title_sort | effective mitigation of greenhouse gas emissions from rice paddies without compromising yield by early season drainage |
| topic | food security climate change agriculture greenhouse gases |
| url | https://hdl.handle.net/10568/88080 |
| work_keys_str_mv | AT islamsyedfaizul theeffectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT groenigenjanwillemvan theeffectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT jensenlarsstoumann theeffectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT sanderbjornole theeffectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT neergaardandreasde theeffectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT islamsyedfaizul effectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT groenigenjanwillemvan effectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT jensenlarsstoumann effectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT sanderbjornole effectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage AT neergaardandreasde effectivemitigationofgreenhousegasemissionsfromricepaddieswithoutcompromisingyieldbyearlyseasondrainage |