Agriculture and climate change: Reducing methane emissions from irrigated rice
Rice is grown on more than 140 million hectares worldwide and is the most heavily consumed staple food on earth. Ninety percent of the world’s rice is produced and consumed in Asia, and 90 percent of rice land is—at least temporarily—flooded. The unique semiaquatic nature of the rice plant allows it...
| Autores principales: | , , |
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| Formato: | Brief |
| Lenguaje: | Inglés |
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International Food Policy Research Institute
2009
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| Acceso en línea: | https://hdl.handle.net/10568/161950 |
| _version_ | 1855520288534429696 |
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| author | Wassmann, Reiner Hosen, Yasukazu Sumfleth, Kay |
| author_browse | Hosen, Yasukazu Sumfleth, Kay Wassmann, Reiner |
| author_facet | Wassmann, Reiner Hosen, Yasukazu Sumfleth, Kay |
| author_sort | Wassmann, Reiner |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice is grown on more than 140 million hectares worldwide and is the most heavily consumed staple food on earth. Ninety percent of the world’s rice is produced and consumed in Asia, and 90 percent of rice land is—at least temporarily—flooded. The unique semiaquatic nature of the rice plant allows it to grow productively in places no other crop could exist, but it is also the reason for its emissions of the major greenhouse gas (GHG), methane. Methane emissions from rice fields are determined mainly by water regime and organic inputs, but they are also influenced by soil type, weather, tillage management, residues, fertilizers, and rice cultivar. Flooding of the soil is a prerequisite for sustained emissions of methane. Recent assessments of methane emissions from irrigated rice cultivation estimate global emissions for the year 2000 at a level corresponding to 625 million metric tons (mt) of carbon dioxide equivalent (CO2e). Midseason drainage (a common irrigation practice adopted in major rice growing regions of China and Japan) and intermittent irrigation (common in northwest India) greatly reduce methane emissions. Similarly, rice environments with an insecure supply of water, namely rainfed rice, have a lower emission potential than irrigated rice. Organic inputs stimulate methane emissions as long as fields remain flooded. Therefore, organic inputs should be applied to aerobic soil in an effort to reduce methane emission. In addition to management factors, methane emissions are also affected by soil parameters and climate. |
| format | Brief |
| id | CGSpace161950 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | International Food Policy Research Institute |
| publisherStr | International Food Policy Research Institute |
| record_format | dspace |
| spelling | CGSpace1619502025-11-06T04:25:27Z Agriculture and climate change: Reducing methane emissions from irrigated rice Wassmann, Reiner Hosen, Yasukazu Sumfleth, Kay climate change rice agricultural research Rice is grown on more than 140 million hectares worldwide and is the most heavily consumed staple food on earth. Ninety percent of the world’s rice is produced and consumed in Asia, and 90 percent of rice land is—at least temporarily—flooded. The unique semiaquatic nature of the rice plant allows it to grow productively in places no other crop could exist, but it is also the reason for its emissions of the major greenhouse gas (GHG), methane. Methane emissions from rice fields are determined mainly by water regime and organic inputs, but they are also influenced by soil type, weather, tillage management, residues, fertilizers, and rice cultivar. Flooding of the soil is a prerequisite for sustained emissions of methane. Recent assessments of methane emissions from irrigated rice cultivation estimate global emissions for the year 2000 at a level corresponding to 625 million metric tons (mt) of carbon dioxide equivalent (CO2e). Midseason drainage (a common irrigation practice adopted in major rice growing regions of China and Japan) and intermittent irrigation (common in northwest India) greatly reduce methane emissions. Similarly, rice environments with an insecure supply of water, namely rainfed rice, have a lower emission potential than irrigated rice. Organic inputs stimulate methane emissions as long as fields remain flooded. Therefore, organic inputs should be applied to aerobic soil in an effort to reduce methane emission. In addition to management factors, methane emissions are also affected by soil parameters and climate. 2009 2024-11-21T09:59:47Z 2024-11-21T09:59:47Z Brief https://hdl.handle.net/10568/161950 en Open Access application/pdf International Food Policy Research Institute Wassmann, Reiner; Hosen, Yasukazu; Sumfleth, Kay. 2009. Agriculture and climate change: Reducing methane emissions from irrigated rice. 2020 Vision Focus Brief 16(3). https://hdl.handle.net/10568/161950 |
| spellingShingle | climate change rice agricultural research Wassmann, Reiner Hosen, Yasukazu Sumfleth, Kay Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title | Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title_full | Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title_fullStr | Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title_full_unstemmed | Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title_short | Agriculture and climate change: Reducing methane emissions from irrigated rice |
| title_sort | agriculture and climate change reducing methane emissions from irrigated rice |
| topic | climate change rice agricultural research |
| url | https://hdl.handle.net/10568/161950 |
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