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Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China
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| Zeitschriftentitel: | Biogeosciences |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | Biogeosciences, 11, 2014, 8, S. 2287-2294 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Copernicus GmbH
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| Schlagwörter: |
| author_facet |
Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. |
|---|---|
| author |
Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. |
| spellingShingle |
Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. Biogeosciences Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China Earth-Surface Processes Ecology, Evolution, Behavior and Systematics |
| author_sort |
cui, z. l. |
| spelling |
Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. 1726-4189 Copernicus GmbH Earth-Surface Processes Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.5194/bg-11-2287-2014 <jats:p>Abstract. Although the concept of producing higher yields with reduced greenhouse gas (GHG) emissions is a goal that attracts increasing public and scientific attention, the trade-off between high yields and GHG emissions in intensive agricultural production is not well understood. Here, we hypothesize that there exists a mechanistic relationship between wheat grain yield and GHG emission, and that could be transformed into better agronomic management. A total 33 sites of on-farm experiments were investigated to evaluate the relationship between grain yield and GHG emissions using two systems (conventional practice, CP; high-yielding systems, HY) of intensive winter wheat (Triticum aestivum L.) in China. Furthermore, we discussed the potential to produce higher yields with lower GHG emissions based on a survey of 2938 farmers. Compared to the CP system, grain yield was 39% (2352 kg ha−1) higher in the HY system, while GHG emissions increased by only 10%, and GHG emission intensity was reduced by 21%. The current intensive winter wheat system with farmers' practice had a median yield and maximum GHG emission rate of 6050 kg ha−1 and 4783 kg CO2 eq ha−1, respectively; however, this system can be transformed to maintain yields while reducing GHG emissions by 26% (6077 kg ha−1, and 3555 kg CO2 eq ha−1). Further, the HY system was found to increase grain yield by 39% with a simultaneous reduction in GHG emissions by 18% (8429 kg ha−1, and 3905 kg CO2 eq ha−1, respectively). In the future, we suggest moving the trade-off relationships and calculations from grain yield and GHG emissions to new measures of productivity and environmental protection using innovative management technologies. </jats:p> Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China Biogeosciences |
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| title |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_unstemmed |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_full |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_fullStr |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_full_unstemmed |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_short |
Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_sort |
trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in china |
| topic |
Earth-Surface Processes Ecology, Evolution, Behavior and Systematics |
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http://dx.doi.org/10.5194/bg-11-2287-2014 |
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2014 |
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2287-2294 |
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<jats:p>Abstract. Although the concept of producing higher yields with reduced greenhouse gas (GHG) emissions is a goal that attracts increasing public and scientific attention, the trade-off between high yields and GHG emissions in intensive agricultural production is not well understood. Here, we hypothesize that there exists a mechanistic relationship between wheat grain yield and GHG emission, and that could be transformed into better agronomic management. A total 33 sites of on-farm experiments were investigated to evaluate the relationship between grain yield and GHG emissions using two systems (conventional practice, CP; high-yielding systems, HY) of intensive winter wheat (Triticum aestivum L.) in China. Furthermore, we discussed the potential to produce higher yields with lower GHG emissions based on a survey of 2938 farmers. Compared to the CP system, grain yield was 39% (2352 kg ha−1) higher in the HY system, while GHG emissions increased by only 10%, and GHG emission intensity was reduced by 21%. The current intensive winter wheat system with farmers' practice had a median yield and maximum GHG emission rate of 6050 kg ha−1 and 4783 kg CO2 eq ha−1, respectively; however, this system can be transformed to maintain yields while reducing GHG emissions by 26% (6077 kg ha−1, and 3555 kg CO2 eq ha−1). Further, the HY system was found to increase grain yield by 39% with a simultaneous reduction in GHG emissions by 18% (8429 kg ha−1, and 3905 kg CO2 eq ha−1, respectively). In the future, we suggest moving the trade-off relationships and calculations from grain yield and GHG emissions to new measures of productivity and environmental protection using innovative management technologies.
</jats:p> |
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| author | Cui, Z. L., Wu, L., Ye, Y. L., Ma, W. Q., Chen, X. P., Zhang, F. S. |
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| description | <jats:p>Abstract. Although the concept of producing higher yields with reduced greenhouse gas (GHG) emissions is a goal that attracts increasing public and scientific attention, the trade-off between high yields and GHG emissions in intensive agricultural production is not well understood. Here, we hypothesize that there exists a mechanistic relationship between wheat grain yield and GHG emission, and that could be transformed into better agronomic management. A total 33 sites of on-farm experiments were investigated to evaluate the relationship between grain yield and GHG emissions using two systems (conventional practice, CP; high-yielding systems, HY) of intensive winter wheat (Triticum aestivum L.) in China. Furthermore, we discussed the potential to produce higher yields with lower GHG emissions based on a survey of 2938 farmers. Compared to the CP system, grain yield was 39% (2352 kg ha−1) higher in the HY system, while GHG emissions increased by only 10%, and GHG emission intensity was reduced by 21%. The current intensive winter wheat system with farmers' practice had a median yield and maximum GHG emission rate of 6050 kg ha−1 and 4783 kg CO2 eq ha−1, respectively; however, this system can be transformed to maintain yields while reducing GHG emissions by 26% (6077 kg ha−1, and 3555 kg CO2 eq ha−1). Further, the HY system was found to increase grain yield by 39% with a simultaneous reduction in GHG emissions by 18% (8429 kg ha−1, and 3905 kg CO2 eq ha−1, respectively). In the future, we suggest moving the trade-off relationships and calculations from grain yield and GHG emissions to new measures of productivity and environmental protection using innovative management technologies. </jats:p> |
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| spelling | Cui, Z. L. Wu, L. Ye, Y. L. Ma, W. Q. Chen, X. P. Zhang, F. S. 1726-4189 Copernicus GmbH Earth-Surface Processes Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.5194/bg-11-2287-2014 <jats:p>Abstract. Although the concept of producing higher yields with reduced greenhouse gas (GHG) emissions is a goal that attracts increasing public and scientific attention, the trade-off between high yields and GHG emissions in intensive agricultural production is not well understood. Here, we hypothesize that there exists a mechanistic relationship between wheat grain yield and GHG emission, and that could be transformed into better agronomic management. A total 33 sites of on-farm experiments were investigated to evaluate the relationship between grain yield and GHG emissions using two systems (conventional practice, CP; high-yielding systems, HY) of intensive winter wheat (Triticum aestivum L.) in China. Furthermore, we discussed the potential to produce higher yields with lower GHG emissions based on a survey of 2938 farmers. Compared to the CP system, grain yield was 39% (2352 kg ha−1) higher in the HY system, while GHG emissions increased by only 10%, and GHG emission intensity was reduced by 21%. The current intensive winter wheat system with farmers' practice had a median yield and maximum GHG emission rate of 6050 kg ha−1 and 4783 kg CO2 eq ha−1, respectively; however, this system can be transformed to maintain yields while reducing GHG emissions by 26% (6077 kg ha−1, and 3555 kg CO2 eq ha−1). Further, the HY system was found to increase grain yield by 39% with a simultaneous reduction in GHG emissions by 18% (8429 kg ha−1, and 3905 kg CO2 eq ha−1, respectively). In the future, we suggest moving the trade-off relationships and calculations from grain yield and GHG emissions to new measures of productivity and environmental protection using innovative management technologies. </jats:p> Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China Biogeosciences |
| spellingShingle | Cui, Z. L., Wu, L., Ye, Y. L., Ma, W. Q., Chen, X. P., Zhang, F. S., Biogeosciences, Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China, Earth-Surface Processes, Ecology, Evolution, Behavior and Systematics |
| title | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_full | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_fullStr | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_full_unstemmed | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_short | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| title_sort | trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in china |
| title_unstemmed | Trade-offs between high yields and greenhouse gas emissions in irrigation wheat cropland in China |
| topic | Earth-Surface Processes, Ecology, Evolution, Behavior and Systematics |
| url | http://dx.doi.org/10.5194/bg-11-2287-2014 |