Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh
Bangladesh is currently self‐sufficient in rice production but faces immense challenges of sustaining that self‐sufficiency because of population growth and climate change. There is little scope to further increase cropping intensity except in the underutilized 1.2 Mha of lands enclosed in the polde...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/164103 |
| _version_ | 1855535661541490688 |
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| author | Mondal, Manoranjan K. Yadav, Sudhir Baidya, Bishwajit Khan, Zahirul H. Sutradhar, Asish Humphreys, Elizabeth Kamal, Farhana A. Jagadish, Krishna S.V. |
| author_browse | Baidya, Bishwajit Humphreys, Elizabeth Jagadish, Krishna S.V. Kamal, Farhana A. Khan, Zahirul H. Mondal, Manoranjan K. Sutradhar, Asish Yadav, Sudhir |
| author_facet | Mondal, Manoranjan K. Yadav, Sudhir Baidya, Bishwajit Khan, Zahirul H. Sutradhar, Asish Humphreys, Elizabeth Kamal, Farhana A. Jagadish, Krishna S.V. |
| author_sort | Mondal, Manoranjan K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Bangladesh is currently self‐sufficient in rice production but faces immense challenges of sustaining that self‐sufficiency because of population growth and climate change. There is little scope to further increase cropping intensity except in the underutilized 1.2 Mha of lands enclosed in the polders of the coastal zone. The main impediment to wide‐scale adoption of more productive cropping systems in the polders is poor drainage that often results in waterlogging. Therefore, a study was conducted in polder 30, in the medium‐salinity region of the south‐west coastal zone, to examine the biophysical and economic feasibility of low‐cost gravity (gravity‐led) drainage. The results show a considerable opportunity to increase rice production in the polders with improved drainage practices. The feasibility of drainage through pumping (energy‐fed) was also assessed, given that there are already situations where gravity‐led drainage is not feasible, and these situations are likely to increase because of climate change‐induced sea level rise and the sinking of polder lands. Energy‐fed drainage was demonstrated to be profitable with a yield gain of at least 1.5 t/ha from just the wet season; further intensification to 50% of polder lands may yield an additional harvest of 3–6 million tons of rice per year. Therefore, investing in improved drainage management in the polders could be a major game changer in sustaining the food security of the nation, especially the climate‐vulnerable polder communities of Bangladesh. |
| format | Journal Article |
| id | CGSpace164103 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1641032025-05-14T10:24:23Z Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh Mondal, Manoranjan K. Yadav, Sudhir Baidya, Bishwajit Khan, Zahirul H. Sutradhar, Asish Humphreys, Elizabeth Kamal, Farhana A. Jagadish, Krishna S.V. soil science agronomy and crop science Bangladesh is currently self‐sufficient in rice production but faces immense challenges of sustaining that self‐sufficiency because of population growth and climate change. There is little scope to further increase cropping intensity except in the underutilized 1.2 Mha of lands enclosed in the polders of the coastal zone. The main impediment to wide‐scale adoption of more productive cropping systems in the polders is poor drainage that often results in waterlogging. Therefore, a study was conducted in polder 30, in the medium‐salinity region of the south‐west coastal zone, to examine the biophysical and economic feasibility of low‐cost gravity (gravity‐led) drainage. The results show a considerable opportunity to increase rice production in the polders with improved drainage practices. The feasibility of drainage through pumping (energy‐fed) was also assessed, given that there are already situations where gravity‐led drainage is not feasible, and these situations are likely to increase because of climate change‐induced sea level rise and the sinking of polder lands. Energy‐fed drainage was demonstrated to be profitable with a yield gain of at least 1.5 t/ha from just the wet season; further intensification to 50% of polder lands may yield an additional harvest of 3–6 million tons of rice per year. Therefore, investing in improved drainage management in the polders could be a major game changer in sustaining the food security of the nation, especially the climate‐vulnerable polder communities of Bangladesh. 2022-10 2024-12-19T12:53:28Z 2024-12-19T12:53:28Z Journal Article https://hdl.handle.net/10568/164103 en Wiley Mondal, Manoranjan K.; Yadav, Sudhir; Baidya, Bishwajit; Khan, Zahirul H.; Sutradhar, Asish; Humphreys, Elizabeth; Kamal, Farhana A. and Jagadish, S. V. Krishna. 2022. Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh. Irrigation and Drainage, Volume 71 no. S1 p. 86-99 |
| spellingShingle | soil science agronomy and crop science Mondal, Manoranjan K. Yadav, Sudhir Baidya, Bishwajit Khan, Zahirul H. Sutradhar, Asish Humphreys, Elizabeth Kamal, Farhana A. Jagadish, Krishna S.V. Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title | Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title_full | Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title_fullStr | Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title_full_unstemmed | Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title_short | Evaluation of gravity-led and energy-fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh |
| title_sort | evaluation of gravity led and energy fed drainage for sustaining food security in the polders of the coastal zone of bangladesh |
| topic | soil science agronomy and crop science |
| url | https://hdl.handle.net/10568/164103 |
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