
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 11, 2024
Язык: Английский
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 11, 2024
Язык: Английский
Global Change Biology, Год журнала: 2024, Номер 30(12)
Опубликована: Дек. 1, 2024
ABSTRACT Reducing water input and promoting productivity in rice field under alternate wetting drying irrigation (AWD), instead of continuous flooding (CF), are vital due to increasing scarcity. However, it is also important understand how methane (CH 4 ) nitrous oxide (N 2 O) emissions global warming potential ( CH N respond AWD the influence various factors. Here, we conducted a meta‐analysis investigate impact on O , its modification by climate conditions, soil properties, management practices. Overall, compared CF, significantly reduced 51.6% 46.9%, while increased 44.0%. The effect was modified level, number events, mean annual precipitation (MAP), organic carbon content (SOC), growth cycle, nitrogen fertilizer (N) application. Regarding emissions, temperature (MAT), elevation, texture, pH had significant impacts effect. Consequently, altered pH, cycle. Additionally, found that MAP or MAT can be used accurately assess changes national mild AWD. Moreover, SOC, but not application, strategy further reduce (mild) AWD, since no difference between application 60–120 > 120 kg ha −1 . Furthermore, serve as an indicator reduction indicated linear correlation them. These findings provide valuable data support for accurate evaluation non‐CO greenhouse gas fields large‐scale promotion future.
Язык: Английский
Процитировано
5Journal of Crop Science and Biotechnology, Год журнала: 2025, Номер unknown
Опубликована: Май 14, 2025
Язык: Английский
Процитировано
0Land, Год журнала: 2025, Номер 14(6), С. 1157 - 1157
Опубликована: Май 27, 2025
China faces the dual challenges of mitigating greenhouse gas emissions and ensuring food security. Given that crop cultivation constitutes a major source agricultural emissions, analyzing emission reduction impact China’s high-standard farmland construction (HSFC) policy, crucial security initiative, holds significant importance. This study calculates from (CGHGE) life cycle assessment (LCA) perspective evaluates new-quality productivity level across 31 regions in 2005 to 2022. Subsequently, this utilizes continuous difference-in-differences (DID) model examine HSFC policy on CGHGE per unit area. Furthermore, mediating role relationship between policies area was examined. The results show can significantly mitigate growth area, with an average annual 62.88%. regional heterogeneity analysis indicates exerts statistically negative effects both western eastern China. tests demonstrate HSFC’s are particularly pronounced grain-producing regions. contributes reductions by enhancing productive forces, which subsequently lead lower CGHGE. findings suggest governments should implement differentiated targeted for HSFC, particular emphasis reducing
Язык: Английский
Процитировано
0Soil and Tillage Research, Год журнала: 2025, Номер 253, С. 106660 - 106660
Опубликована: Май 28, 2025
Язык: Английский
Процитировано
0Field Crops Research, Год журнала: 2024, Номер 319, С. 109622 - 109622
Опубликована: Окт. 23, 2024
Язык: Английский
Процитировано
2ASEAN Journal of Scientific and Technological Reports, Год журнала: 2024, Номер 28(1), С. e255939 - e255939
Опубликована: Дек. 14, 2024
Methane oxidation by soil microorganisms is crucial in mitigating greenhouse gas emissions. This study investigated methane potential across four distinct environments through standardized laboratory enrichment cultures. Soil samples were collected from landfill-cover soils, rice fields, cattle farms, and pond sediments, with environmental parameters monitored to understand their influence on rates efficiencies. Using chromatography analysis, we quantified under controlled conditions. Statistical analysis revealed significant differences types. Landfill cover soils exhibited the highest rate of 0.39 μmol-CH₄/g-soil dry weight/h efficiency 66.5 %. Pond farm field followed 0.29, 0.28, 0.27 weight/h, respectively. Oxidation efficiencies for these ranged 46.1% 48.4%. pH organic matter content showed strong positive correlations all types, while moisture effects varied. The superior performance landfill was attributed optimal conditions stable substrate availability. enhancing efficiencies: 66.5% 75-85%, fields 60-70%, farms 47.0% 55-65%, sediments 48.4% 60-75%. Implementing optimized management strategies could reduce emissions 70-90% landfills, 30-50% agricultural systems, 40-60% aquatic compared current practices. highlights substantial biological diverse ecosystems emphasizes need targeted approaches optimize mitigation strategies.
Язык: Английский
Процитировано
1Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 11, 2024
Язык: Английский
Процитировано
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