Claim · model-written summary
Under -S, AWMD decreased greenhouse gas intensity by 46.7% compared with continuous flooding.
- Taxon
- rice
Oryza sativat0 - Treatment
- AWMD regimee1
- Outcome
- greenhouse gas intensitye1
- Direction
- decreasede1
- Value
- 46.7%e1
- Qualifier
- under −Se1
- Comparator
- CF regimee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“the AWMD regime substantially decreased seasonal CH 4 emissions, global warming potential ( GWP , including both CH 4 and N 2 O) and greenhouse gas intensity (grain yield over GWP ) by 49.8%, 45.2% and 46.7%, respectively, under −S, and by 57.5, 55.9% and 62.6%, respectively, under +S, when compared with the CF regime”
Title
Guang Chu; Zhiqin Wang; Hao Zhang; et al. Food and Energy Security 2015. doi:10.1002/fes3.66
Other claims from this paper (13)
- Intervention effect Under no straw incorporation (-S), alternate wetting and moderate drying raised rice grain yield by 2.7% compared with continuous flooding.
- Intervention effect Under no straw incorporation (-S), alternate wetting and moderate drying raised water use efficiency by 27.6% compared with continuous flooding.
- Intervention effect Under straw incorporation (+S), alternate wetting and moderate drying raised rice grain yield by 18.0% compared with continuous flooding.
- Intervention effect Under straw incorporation (+S), alternate wetting and moderate drying raised water use efficiency by 50.0% compared with continuous flooding.
- Intervention effect The AWMD + S treatment significantly increased nitrogen use efficiency compared with the continuously flooded + S treatment.
- Mechanism The authors attribute the increases in grain yield, WUE and NUE under AWMD, especially with straw, mainly to greater root oxidation activity, deeper root distribution and more productive tillers, higher crop growth rate and nonstructural carbohydrate remobilization during grain filling.
- Intervention effect The AWMD regime caused a total of 0.49 kg N2O-N per ha more loss than the continuously flooded regime.
- Intervention effect Under -S, AWMD decreased seasonal CH4 emissions by 49.8% compared with continuous flooding.
- Intervention effect Under -S, AWMD decreased global warming potential by 45.2% compared with continuous flooding.
- Intervention effect Under +S, AWMD decreased seasonal CH4 emissions by 57.5% compared with continuous flooding.
- Intervention effect Under +S, AWMD decreased global warming potential by 55.9% compared with continuous flooding.
- Intervention effect Under +S, AWMD decreased greenhouse gas intensity by 62.6% compared with continuous flooding.
- Recommendation The authors conclude AWMD is an effective practice to increase grain yield and resource-use efficiency and reduce environmental risks, especially when wheat straw is incorporated into paddy fields.