| |
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Treinta y Tres. |
|
Fecha : |
17/03/2022 |
|
Actualizado : |
01/09/2022 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
FERNÁNDEZ SCAVINO, A.; OREGGIONI, D.; MARTÍNEZ PEREYRA, A.; TARLERA, S.; TERRA, J.A.; IRISARRI, P. |
|
Afiliación : |
ANA FERNÁNDEZ SCAVINO, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; DANIELA OREGGIONI, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; ANDREA MARTÍNEZ PEREYRA, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; SILVANA TARLERA, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PILAR IRISARRI, Laboratorio de Microbiología, Departmento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
|
Título : |
Season and no-till Rice crop intensification affect soil microbial populations involved in CH4 and N2O emissions. |
|
Fecha de publicación : |
2022 |
|
Fuente / Imprenta : |
Frontiers in Soil Science, 17 March 2022, Volume 2, Article number 832600. OPEN ACCESS. Doi: https://doi.org/10.3389/fsoil.2022.832600 |
|
DOI : |
10.3389/fsoil.2022.832600 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received: 10 December 2021; Accepted: 01 February 2022; Published: 17 March 2022.
This article is part of the research topic ?Management of agroecosystems for enhancement of soil microbial communities and soil natural fertility? https://www.frontiersin.org/research-topics/19551/management-of-agroecosystems-for-enhancement-of-soil-microbial-communities-and-soil-natural-fertilit#articles |
|
Contenido : |
Abstract: Rice is an important source of methane (CH4) and other crops may be sources of nitrous oxide (N2O), both of which are powerful greenhouse gases. In Uruguay, irrigated rice rotates with perennial pastures and allows high productivity and low environmental impact. A long-term experiment with contrasting rice rotation intensification alternatives, including rice?soybean and continuous rice, was recently carried out in an Argialboll located in a temperate region of South America. To know if rotation systems influence soil microbial activity involved in CH4 and N2O emissions, the abundance and potential rate for gas production or consumption of microbial populations were measured during the rice crop season. CH4 was only emitted when rice was flooded and N2O emission was not detected. All rotational soils showed the highest rate for methanogenesis at tillering (30 days after rice emergence), while for methanotrophy, the maximum rate was reached at flowering. The abundance of related genes also followed a seasonal pattern with highest densities of mcrA genes being observed at rice flowering whereas pmoA genes were more abundant in dry soils after rice harvest, regardless of the rotation system. Differences were found mainly at tillering when soils with two consecutive summers under rice showed higher amounts of mcrA and pmoA gene copies. The potential denitrification rate was highest at the tillering stage, but the abundance of nirK and nirS genes was highest in winter. Regarding ammonium oxidation, bacterial amoA abundance was higher in winter while the archaeal amoA gene was similar throughout the year. A strong influence of the rice growth stage was registered for most of the parameters measured in rice paddy soils in this no-till rice intensification experiment. However, differences among rotations begin to be observed mainly at tillering when the abundance of populations of the methane and nitrous oxide cycles seemed to respond to the rice intensification. MenosAbstract: Rice is an important source of methane (CH4) and other crops may be sources of nitrous oxide (N2O), both of which are powerful greenhouse gases. In Uruguay, irrigated rice rotates with perennial pastures and allows high productivity and low environmental impact. A long-term experiment with contrasting rice rotation intensification alternatives, including rice?soybean and continuous rice, was recently carried out in an Argialboll located in a temperate region of South America. To know if rotation systems influence soil microbial activity involved in CH4 and N2O emissions, the abundance and potential rate for gas production or consumption of microbial populations were measured during the rice crop season. CH4 was only emitted when rice was flooded and N2O emission was not detected. All rotational soils showed the highest rate for methanogenesis at tillering (30 days after rice emergence), while for methanotrophy, the maximum rate was reached at flowering. The abundance of related genes also followed a seasonal pattern with highest densities of mcrA genes being observed at rice flowering whereas pmoA genes were more abundant in dry soils after rice harvest, regardless of the rotation system. Differences were found mainly at tillering when soils with two consecutive summers under rice showed higher amounts of mcrA and pmoA gene copies. The potential denitrification rate was highest at the tillering stage, but the abundance of nirK and nirS genes was highest in winter. ... Presentar Todo |
|
Palabras claves : |
INTENSIFICATION; METHANE; MICROBIAL ABUNDANCE; NITROUS OXIDE (N20); RICE ROTATIONS SYSTEMS. |
|
Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16651/1/Frontier-Soil-Science-2002-Fernandez-Scavino.pdf
|
|
Marc : |
LEADER 03291naa a2200265 a 4500
001 1062851
005 2022-09-01
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3389/fsoil.2022.832600$2DOI
100 1 $aFERNÁNDEZ SCAVINO, A.
245 $aSeason and no-till Rice crop intensification affect soil microbial populations involved in CH4 and N2O emissions.$h[electronic resource]
260 $c2022
500 $aArticle history: Received: 10 December 2021; Accepted: 01 February 2022; Published: 17 March 2022. This article is part of the research topic ?Management of agroecosystems for enhancement of soil microbial communities and soil natural fertility? https://www.frontiersin.org/research-topics/19551/management-of-agroecosystems-for-enhancement-of-soil-microbial-communities-and-soil-natural-fertilit#articles
520 $aAbstract: Rice is an important source of methane (CH4) and other crops may be sources of nitrous oxide (N2O), both of which are powerful greenhouse gases. In Uruguay, irrigated rice rotates with perennial pastures and allows high productivity and low environmental impact. A long-term experiment with contrasting rice rotation intensification alternatives, including rice?soybean and continuous rice, was recently carried out in an Argialboll located in a temperate region of South America. To know if rotation systems influence soil microbial activity involved in CH4 and N2O emissions, the abundance and potential rate for gas production or consumption of microbial populations were measured during the rice crop season. CH4 was only emitted when rice was flooded and N2O emission was not detected. All rotational soils showed the highest rate for methanogenesis at tillering (30 days after rice emergence), while for methanotrophy, the maximum rate was reached at flowering. The abundance of related genes also followed a seasonal pattern with highest densities of mcrA genes being observed at rice flowering whereas pmoA genes were more abundant in dry soils after rice harvest, regardless of the rotation system. Differences were found mainly at tillering when soils with two consecutive summers under rice showed higher amounts of mcrA and pmoA gene copies. The potential denitrification rate was highest at the tillering stage, but the abundance of nirK and nirS genes was highest in winter. Regarding ammonium oxidation, bacterial amoA abundance was higher in winter while the archaeal amoA gene was similar throughout the year. A strong influence of the rice growth stage was registered for most of the parameters measured in rice paddy soils in this no-till rice intensification experiment. However, differences among rotations begin to be observed mainly at tillering when the abundance of populations of the methane and nitrous oxide cycles seemed to respond to the rice intensification.
653 $aINTENSIFICATION
653 $aMETHANE
653 $aMICROBIAL ABUNDANCE
653 $aNITROUS OXIDE (N20)
653 $aRICE ROTATIONS SYSTEMS
700 1 $aOREGGIONI, D.
700 1 $aMARTÍNEZ PEREYRA, A.
700 1 $aTARLERA, S.
700 1 $aTERRA, J.A.
700 1 $aIRISARRI, P.
773 $tFrontiers in Soil Science, 17 March 2022, Volume 2, Article number 832600. OPEN ACCESS. Doi: https://doi.org/10.3389/fsoil.2022.832600
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha actual : |
16/10/2018 |
|
Actualizado : |
11/03/2021 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
TEXEIRA, M.; VERON, S.; IRISARRIA, G.; OYARZABAL, M.; STAIANO, L.; BAEZA, S.; PARUELO, J. |
|
Afiliación : |
MARCOS TEXEIRA, Laboratorio de Análisis Regional y Teledetección (LART), Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Facultad de Agronomía, Universidad de Buenos Aires–CONICET, Buenos Aires, Ar.; S. R. VERON, Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina.; GONZALO IRISARRIA, Laboratorio de Análisis Regional y Teledetección (LART), Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Facultad de Agronomía, Universidad de Buenos Aires–CONICET, Argentina.; MARIANO OYARZABAL, Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, Argentina.; LUCIANA STAIANO, Laboratorio de Análisis Regional y Teledetección (LART), Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), Facultad de Agronomía, Universidad de Buenos Aires–CONICET, Argentina.; SANTIAGO BAEZA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Functional syndromes as indicators of ecosystem change in temperate grasslands. |
|
Fecha de publicación : |
2019 |
|
Fuente / Imprenta : |
Ecological Indicators, 2019, v. 96, p.600-610.Doi: https://doi.10.1016/j.ecolind.2018.09.046 |
|
DOI : |
10.1016/j.ecolind.2018.09.046 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received 27 December 2017// Received in revised form 21 August 2018// Accepted 24 September 2018. Acknowledgments:
This research was supported by CONICET (Argentina), Universidad de Buenos Aires (Argentina), and FONCyT (Argentina). This work was
carried out with the aid of a grant from the Inter-American Institute for Global Change Research (IAI) CRN III 3095, which is supported by the
US National Science Foundation (Grant GEO-1128040). |
|
Contenido : |
Abstract: The lack of an organizing conceptual framework to address ecosystem changes reduces our capacity to distinguish biophysical from direct human impacts on grassland dynamics. This is particularly important for subhumid temperate grasslands, one of the world's most threatened biomes. We identified and mapped 4 functional syndromes of grassland change at the wettest end of its worldwide distribution, the Campos in Uruguay. Syndromes were defined by differences in precipitation use efficiency (PUE, ANPP/precipitation), and in precipitation marginal response (PMR, slope of the linear regression between ANPP and precipitation) between two periods (1981-1995 and 2001-2011). Temporal trends in aboveground net primary production (ANPP, obtained by splicing two sources of NDVI, LTDR and MOD13Q1) were also characterized. To rule out the effect of precipitation we analyzed temporal trends of the residuals from the relationship between ANPP and annual precipitation (RESTRENDS). Functional syndromes associated with increases in seasonality or in the abundance of annual vegetation (?PMR > 0, ?PUE < 0, ?14,000 km 2) and vegetation cover loss (?PUE < 0 and ?PMR < 0, > 5000 km 2) were the most abundant. ANPP trends were significantly negative in 3.7% of the area (2475 km 2) and only positive in 0.3%. However, RESTRENDS were significant in 11% of the area (> 7700 km 2), and mostly negative (in ?7200 km 2). Most of these negative trends and residual trends were associated to seasonality increase and vegetation loss syndromes. These patterns were consistent with observed changes in the region. We highlight that this conceptual framework is suitable for describing patterns of change and potential causes. Moreover, it provides policymakers with a novel tool to guide management and conservation policies, pointing to sites where intervention (i.e. conservation, restoration) is needed. MenosAbstract: The lack of an organizing conceptual framework to address ecosystem changes reduces our capacity to distinguish biophysical from direct human impacts on grassland dynamics. This is particularly important for subhumid temperate grasslands, one of the world's most threatened biomes. We identified and mapped 4 functional syndromes of grassland change at the wettest end of its worldwide distribution, the Campos in Uruguay. Syndromes were defined by differences in precipitation use efficiency (PUE, ANPP/precipitation), and in precipitation marginal response (PMR, slope of the linear regression between ANPP and precipitation) between two periods (1981-1995 and 2001-2011). Temporal trends in aboveground net primary production (ANPP, obtained by splicing two sources of NDVI, LTDR and MOD13Q1) were also characterized. To rule out the effect of precipitation we analyzed temporal trends of the residuals from the relationship between ANPP and annual precipitation (RESTRENDS). Functional syndromes associated with increases in seasonality or in the abundance of annual vegetation (?PMR > 0, ?PUE < 0, ?14,000 km 2) and vegetation cover loss (?PUE < 0 and ?PMR < 0, > 5000 km 2) were the most abundant. ANPP trends were significantly negative in 3.7% of the area (2475 km 2) and only positive in 0.3%. However, RESTRENDS were significant in 11% of the area (> 7700 km 2), and mostly negative (in ?7200 km 2). Most of these negative trends and residual trends were associated to seasonalit... Presentar Todo |
|
Palabras claves : |
ABOVEGROUND NET PRIMARY PRODUCTION (ANPP); ECOSYSTEM FUNCTIONAL SYNDROMES; GRASSLANDS; LTDR; MODIS; PRECIPITATION USE EICIENCY (PUE). |
|
Thesagro : |
ECOSISTEMAS. |
|
Asunto categoría : |
F01 Cultivo |
|
Marc : |
LEADER 03262naa a2200301 a 4500
001 1059197
005 2021-03-11
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ecolind.2018.09.046$2DOI
100 1 $aTEXEIRA, M.
245 $aFunctional syndromes as indicators of ecosystem change in temperate grasslands.$h[electronic resource]
260 $c2019
500 $aArticle history: Received 27 December 2017// Received in revised form 21 August 2018// Accepted 24 September 2018. Acknowledgments: This research was supported by CONICET (Argentina), Universidad de Buenos Aires (Argentina), and FONCyT (Argentina). This work was carried out with the aid of a grant from the Inter-American Institute for Global Change Research (IAI) CRN III 3095, which is supported by the US National Science Foundation (Grant GEO-1128040).
520 $aAbstract: The lack of an organizing conceptual framework to address ecosystem changes reduces our capacity to distinguish biophysical from direct human impacts on grassland dynamics. This is particularly important for subhumid temperate grasslands, one of the world's most threatened biomes. We identified and mapped 4 functional syndromes of grassland change at the wettest end of its worldwide distribution, the Campos in Uruguay. Syndromes were defined by differences in precipitation use efficiency (PUE, ANPP/precipitation), and in precipitation marginal response (PMR, slope of the linear regression between ANPP and precipitation) between two periods (1981-1995 and 2001-2011). Temporal trends in aboveground net primary production (ANPP, obtained by splicing two sources of NDVI, LTDR and MOD13Q1) were also characterized. To rule out the effect of precipitation we analyzed temporal trends of the residuals from the relationship between ANPP and annual precipitation (RESTRENDS). Functional syndromes associated with increases in seasonality or in the abundance of annual vegetation (?PMR > 0, ?PUE < 0, ?14,000 km 2) and vegetation cover loss (?PUE < 0 and ?PMR < 0, > 5000 km 2) were the most abundant. ANPP trends were significantly negative in 3.7% of the area (2475 km 2) and only positive in 0.3%. However, RESTRENDS were significant in 11% of the area (> 7700 km 2), and mostly negative (in ?7200 km 2). Most of these negative trends and residual trends were associated to seasonality increase and vegetation loss syndromes. These patterns were consistent with observed changes in the region. We highlight that this conceptual framework is suitable for describing patterns of change and potential causes. Moreover, it provides policymakers with a novel tool to guide management and conservation policies, pointing to sites where intervention (i.e. conservation, restoration) is needed.
650 $aECOSISTEMAS
653 $aABOVEGROUND NET PRIMARY PRODUCTION (ANPP)
653 $aECOSYSTEM FUNCTIONAL SYNDROMES
653 $aGRASSLANDS
653 $aLTDR
653 $aMODIS
653 $aPRECIPITATION USE EICIENCY (PUE)
700 1 $aVERON, S.
700 1 $aIRISARRIA, G.
700 1 $aOYARZABAL, M.
700 1 $aSTAIANO, L.
700 1 $aBAEZA, S.
700 1 $aPARUELO, J.
773 $tEcological Indicators, 2019$gv. 96, p.600-610.Doi: https://doi.10.1016/j.ecolind.2018.09.046
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
