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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
12/12/2023 |
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Actualizado : |
12/12/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
ZHANG, Z.; MACEDO, I.; LINQUIST, B.A.; SANDER, B. O.; PITTELKOW, C.M. |
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Afiliación : |
ZHENGLIN ZHANG, Department of Plant Sciences, University of California Davis, One Shields Ave., Davis, 95616, CA, United States; IGNACIO MACEDO YAPOR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Department of Plant Sciences, University of California Davis, One Shields Ave., Davis, 95616, CA, United State; BRUCE A. LINQUIST, Department of Plant Sciences, University of California Davis, One Shields Ave., Davis, 95616, CA, United States; BJOERN OLE SANDER, International Rice Research Institute (IRRI), Pili Drive, Laguna, Los Baños, 4031, Philippines; CAMERON M. PITTELKOW, Department of Plant Sciences, University of California Davis, One Shields Ave., Davis, 95616, CA, United States. |
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Título : |
Opportunities for mitigating net system greenhouse gas emissions in Southeast Asian rice production: A systematic review. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Agriculture, Ecosystems and Environment, 2024, Volume 361, article 108812. https://doi.org/10.1016/j.agee.2023.108812 |
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ISSN : |
0167-8809 |
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DOI : |
10.1016/j.agee.2023.108812 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 28 June 2023; Received in revised form 13 September 2023; Accepted 8 November 2023; Available online 21 November 2023. -- Correspondence: Z. Zhang, E-mail address: hcizhang@ucdavis.edu -- |
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Contenido : |
ABSTRACT.- Southeast Asia (SEA) is a key producer and exporter of rice, accounting for around 28% of rice produced globally. To effectively mitigate greenhouse gas (GHG) emissions in SEA rice systems, field methane (CH4) and nitrous oxide (N2O) emissions have been intensively studied. However, an integrated assessment of system-level GHG emissions which includes other carbon (C) balance components, such as soil organic carbon (SOC) or energy use, that can positively or negatively influence the net capacity for climate change mitigation is lacking. We conducted a systematic review of published research in SEA rice systems to synthesize findings across four main components of net system emissions: (1) field GHG emissions, (2) energy inputs, (3) residue utilization beyond the field, and (4) SOC change. The objectives were to highlight effective mitigation opportunities and explore cross-component effects to identify tradeoffs and key knowledge gaps. Field GHG emissions were the largest contributor to net system emissions in agreement with existing scientific consensus, with results showing that practices such as floodwater drainage and residue removal are sound options for CH4 mitigation. On the other hand, increasing SOC potentially provides a large GHG mitigation opportunity, with long-term continuous rice cropping and practices such as residue incorporation and biochar application promoting SOC increase. A reduction in energy inputs was mainly achieved by optimizing agrochemical use, especially N fertilizers. For residue utilization beyond the field, GHG emission mitigation mainly came from preventing open field burning through residue removal. Removed residue can subsequently be used for producing energy that offsets GHG emissions associated with conventional fuel sources (e.g. fossil fuel-based electricity generation) or substituting material used in other production systems. Integrating all four components of net system emissions into one analysis underscores the following two main takeaways. First, the components of field GHG emissions and SOC change are the biggest opportunities for reducing net system emissions and need to be considered for effective climate change mitigation. Second, the reduction of C inputs through residue removal and increased soil aeration through multiple drainage will lower CH4 emissions but may also potentially decrease SOC stocks over time. Hence, we argue that future research needs to consider cross-component effects to optimize net system emissions, specifically the "stacking" of best management practices for mitigation related to field GHG emissions or SOC change in long-term experiments. © 2023 The Authors MenosABSTRACT.- Southeast Asia (SEA) is a key producer and exporter of rice, accounting for around 28% of rice produced globally. To effectively mitigate greenhouse gas (GHG) emissions in SEA rice systems, field methane (CH4) and nitrous oxide (N2O) emissions have been intensively studied. However, an integrated assessment of system-level GHG emissions which includes other carbon (C) balance components, such as soil organic carbon (SOC) or energy use, that can positively or negatively influence the net capacity for climate change mitigation is lacking. We conducted a systematic review of published research in SEA rice systems to synthesize findings across four main components of net system emissions: (1) field GHG emissions, (2) energy inputs, (3) residue utilization beyond the field, and (4) SOC change. The objectives were to highlight effective mitigation opportunities and explore cross-component effects to identify tradeoffs and key knowledge gaps. Field GHG emissions were the largest contributor to net system emissions in agreement with existing scientific consensus, with results showing that practices such as floodwater drainage and residue removal are sound options for CH4 mitigation. On the other hand, increasing SOC potentially provides a large GHG mitigation opportunity, with long-term continuous rice cropping and practices such as residue incorporation and biochar application promoting SOC increase. A reduction in energy inputs was mainly achieved by optimizing agrochem... Presentar Todo |
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Palabras claves : |
Climate smart agriculture; Energy input; GHG emissions; Greenhouse gas; Residue and water management; Soil organic carbon. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 03809naa a2200277 a 4500
001 1064401
005 2023-12-12
008 2023 bl uuuu u00u1 u #d
022 $a0167-8809
024 7 $a10.1016/j.agee.2023.108812$2DOI
100 1 $aZHANG, Z.
245 $aOpportunities for mitigating net system greenhouse gas emissions in Southeast Asian rice production$bA systematic review.$h[electronic resource]
260 $c2023
500 $aArticle history: Received 28 June 2023; Received in revised form 13 September 2023; Accepted 8 November 2023; Available online 21 November 2023. -- Correspondence: Z. Zhang, E-mail address: hcizhang@ucdavis.edu --
520 $aABSTRACT.- Southeast Asia (SEA) is a key producer and exporter of rice, accounting for around 28% of rice produced globally. To effectively mitigate greenhouse gas (GHG) emissions in SEA rice systems, field methane (CH4) and nitrous oxide (N2O) emissions have been intensively studied. However, an integrated assessment of system-level GHG emissions which includes other carbon (C) balance components, such as soil organic carbon (SOC) or energy use, that can positively or negatively influence the net capacity for climate change mitigation is lacking. We conducted a systematic review of published research in SEA rice systems to synthesize findings across four main components of net system emissions: (1) field GHG emissions, (2) energy inputs, (3) residue utilization beyond the field, and (4) SOC change. The objectives were to highlight effective mitigation opportunities and explore cross-component effects to identify tradeoffs and key knowledge gaps. Field GHG emissions were the largest contributor to net system emissions in agreement with existing scientific consensus, with results showing that practices such as floodwater drainage and residue removal are sound options for CH4 mitigation. On the other hand, increasing SOC potentially provides a large GHG mitigation opportunity, with long-term continuous rice cropping and practices such as residue incorporation and biochar application promoting SOC increase. A reduction in energy inputs was mainly achieved by optimizing agrochemical use, especially N fertilizers. For residue utilization beyond the field, GHG emission mitigation mainly came from preventing open field burning through residue removal. Removed residue can subsequently be used for producing energy that offsets GHG emissions associated with conventional fuel sources (e.g. fossil fuel-based electricity generation) or substituting material used in other production systems. Integrating all four components of net system emissions into one analysis underscores the following two main takeaways. First, the components of field GHG emissions and SOC change are the biggest opportunities for reducing net system emissions and need to be considered for effective climate change mitigation. Second, the reduction of C inputs through residue removal and increased soil aeration through multiple drainage will lower CH4 emissions but may also potentially decrease SOC stocks over time. Hence, we argue that future research needs to consider cross-component effects to optimize net system emissions, specifically the "stacking" of best management practices for mitigation related to field GHG emissions or SOC change in long-term experiments. © 2023 The Authors
653 $aClimate smart agriculture
653 $aEnergy input
653 $aGHG emissions
653 $aGreenhouse gas
653 $aResidue and water management
653 $aSoil organic carbon
700 1 $aMACEDO, I.
700 1 $aLINQUIST, B.A.
700 1 $aSANDER, B. O.
700 1 $aPITTELKOW, C.M.
773 $tAgriculture, Ecosystems and Environment, 2024, Volume 361, article 108812. https://doi.org/10.1016/j.agee.2023.108812
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