Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program
This article analyses the greenhouse gas (GHG) impact potential of improved management practices and technologies for smallholder agriculture promoted under a global food security development program. Under 'business-as-usual' development, global studies on the future of agriculture to 2050 project...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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IOP Publishing
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/96532 |
| _version_ | 1855526120484503552 |
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| author | Grewer, Uwe Nash, Julie Gurwick, Noel Bockel, Louis Galford, Gillian L. Richards, Meryl B. Costa, Ciniro White, Julianna M. Pirolli, Gillian Wollenberg, Eva Karoline |
| author_browse | Bockel, Louis Costa, Ciniro Galford, Gillian L. Grewer, Uwe Gurwick, Noel Nash, Julie Pirolli, Gillian Richards, Meryl B. White, Julianna M. Wollenberg, Eva Karoline |
| author_facet | Grewer, Uwe Nash, Julie Gurwick, Noel Bockel, Louis Galford, Gillian L. Richards, Meryl B. Costa, Ciniro White, Julianna M. Pirolli, Gillian Wollenberg, Eva Karoline |
| author_sort | Grewer, Uwe |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This article analyses the greenhouse gas (GHG) impact potential of improved management practices and technologies for smallholder agriculture promoted under a global food security development program. Under 'business-as-usual' development, global studies on the future of agriculture to 2050 project considerable increases in total food production and cultivated area. Conventional cropland intensification and conversion of natural vegetation typically result in increased GHG emissions and loss of carbon stocks. There is a strong need to understand the potential greenhouse gas impacts of agricultural development programs intended to achieve large-scale change, and to identify pathways of smallholder agricultural development that can achieve food security and agricultural production growth without drastic increases in GHG emissions.
In an analysis of 134 crop and livestock production systems in 15 countries with reported impacts on 4.8 million ha, improved management practices and technologies by smallholder farmers significantly reduce GHG emission intensity of agricultural production, increase yields and reduce post-harvest losses, while either decreasing or only moderately increasing net GHG emissions per area. Investments in both production and post-harvest stages meaningfully reduced GHG emission intensity, contributing to low emission development. We present average impacts on net GHG emissions per hectare and GHG emission intensity, while not providing detailed statistics of GHG impacts at scale that are associated to additional uncertainties. While reported improvements in smallholder systems effectively reduce future GHG emissions compared to business-as-usual development, these contributions are insufficient to significantly reduce net GHG emission in agriculture beyond current levels, particularly if future agricultural production grows at projected rates. |
| format | Journal Article |
| id | CGSpace96532 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | IOP Publishing |
| publisherStr | IOP Publishing |
| record_format | dspace |
| spelling | CGSpace965322024-09-02T08:48:07Z Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program Grewer, Uwe Nash, Julie Gurwick, Noel Bockel, Louis Galford, Gillian L. Richards, Meryl B. Costa, Ciniro White, Julianna M. Pirolli, Gillian Wollenberg, Eva Karoline agriculture climate change food security greenhouse gases smallholders This article analyses the greenhouse gas (GHG) impact potential of improved management practices and technologies for smallholder agriculture promoted under a global food security development program. Under 'business-as-usual' development, global studies on the future of agriculture to 2050 project considerable increases in total food production and cultivated area. Conventional cropland intensification and conversion of natural vegetation typically result in increased GHG emissions and loss of carbon stocks. There is a strong need to understand the potential greenhouse gas impacts of agricultural development programs intended to achieve large-scale change, and to identify pathways of smallholder agricultural development that can achieve food security and agricultural production growth without drastic increases in GHG emissions. In an analysis of 134 crop and livestock production systems in 15 countries with reported impacts on 4.8 million ha, improved management practices and technologies by smallholder farmers significantly reduce GHG emission intensity of agricultural production, increase yields and reduce post-harvest losses, while either decreasing or only moderately increasing net GHG emissions per area. Investments in both production and post-harvest stages meaningfully reduced GHG emission intensity, contributing to low emission development. We present average impacts on net GHG emissions per hectare and GHG emission intensity, while not providing detailed statistics of GHG impacts at scale that are associated to additional uncertainties. While reported improvements in smallholder systems effectively reduce future GHG emissions compared to business-as-usual development, these contributions are insufficient to significantly reduce net GHG emission in agriculture beyond current levels, particularly if future agricultural production grows at projected rates. 2018-04-01 2018-08-10T20:53:17Z 2018-08-10T20:53:17Z Journal Article https://hdl.handle.net/10568/96532 en Open Access IOP Publishing Grewer U, Nash J, Gurwick N, Bockel L, Galford G, Richards M, Costa C, White J, Pirolli G, Wollenberg E. 2018. Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program. Environmental Research Letters 13(4):12-13 |
| spellingShingle | agriculture climate change food security greenhouse gases smallholders Grewer, Uwe Nash, Julie Gurwick, Noel Bockel, Louis Galford, Gillian L. Richards, Meryl B. Costa, Ciniro White, Julianna M. Pirolli, Gillian Wollenberg, Eva Karoline Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title | Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title_full | Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title_fullStr | Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title_full_unstemmed | Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title_short | Analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| title_sort | analyzing the greenhouse gas impact potential of smallholder development actions across a global food security program |
| topic | agriculture climate change food security greenhouse gases smallholders |
| url | https://hdl.handle.net/10568/96532 |
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