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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
18/12/2017 |
Actualizado : |
18/12/2017 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
LÓPEZ-AIZPÚN, M.; ARANGO-MORA, C.; SANTAMARÍA, C.; LASHERAS, E.; SANTAMARÍA, J.M.; CIGANDA, V.; CÁRDENAS, L.M.; ELUSTONDO, D. |
Afiliación : |
M. LÓPEZ-AIZPÚN, UNAV (Universidad de Navarra); C. ARANGO-MORA, UNAV (Universidad de Navarra); C. SANTAMARÍA, UNAV (Universidad de Navarra); E. LASHERAS, UNAV (Universidad de Navarra); J.M. SANTAMARÍA, UNAV (Universidad de Navarra); VERONICA SOLANGE CIGANDA BRASCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; L.M. CÁRDENAS, Rothamsted Research, United Kindom; D. ELUSTONDO, UNAV (Universidad de Navarra). |
Título : |
Atmospheric ammonia concentration modulates soil enzyme and microbial activity in an oak forest affecting soil microbial biomass. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Soil Biology and Biochemistry, 2017, v.116, p.378-387. |
DOI : |
10.1016/j.soilbio.2017.10.020 |
Idioma : |
Inglés |
Notas : |
Article history: Received 19 June 2017; Received in revised form 20 October 2017; Accepted 21 October 2017; Available online 07 November 2017.
The research leading to these results has received funding from "la Caixa" Banking Foundation . The authors express their gratitude to the analytical staff of the Department of Chemistry and the Department of Environmental Biology of the University of Navarra for its assistance, J.M. Otano, J.J Irigoyen and I. Pascual, in particular. Rothamsted Research is sponsored by the BBSRC . |
Contenido : |
ABSTRACT.
The present work was carried out to assess the effect of atmospheric ammonia (NH3) on soil physicochemical properties, soil enzymatic activities (β-glucosidase -β-GLU-, nitrate reductase ?NR-, urease ?UR-, protease ?PRO-, acid phosphatase ?PHO-, dehydrogenase ?DHA-), soil microbial biomass and soil respiration. The study was conducted along a NH3 gradient in a Q. pubescens Milld. forest in the vicinity of two livestock farms. Because of NHy (NHy: NH3 and NH4+) deposition, N saturation was detected up to 330 m from the farms. This excess of N led to a decrease in soil C:N and an increase in soil nitrification processes, which resulted in an accumulation of the heavy N isotope (15N) in the soil. N saturation was also reflected in the activity of NR enzyme, which was inhibited. On the other hand, while UR enzyme was inhibited close to the farms possibly due to the high amount of N-NH4+ resulting from the hydrolysis of NH3, PRO activity was stimulated by the presence of organic nitrogen compounds and the need of soil organisms to meet the C demand. In addition, the activity of PHO and β-GLU enzymes was regulated by the relative amount of C and P that organisms need. Regarding biological variables, enhanced NH3 reduced soil microbial biomass and biomass respiratory efficiency. Finally, soil enzyme activities and soil microbial biomass have proved to be good biological indicators of soil quality.
© 2017 Elsevier Ltd |
Palabras claves : |
ATMOSPHERIC AMMONIA; METABOLIC QUOTIENT; SOIL EXTRACELLULAR ENZYMES; SOIL MICROBIAL BIOMASS; SOIL RESPIRATION. |
Asunto categoría : |
-- |
Marc : |
LEADER 02893naa a2200289 a 4500 001 1057900 005 2017-12-18 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1016/j.soilbio.2017.10.020$2DOI 100 1 $aLÓPEZ-AIZPÚN, M. 245 $aAtmospheric ammonia concentration modulates soil enzyme and microbial activity in an oak forest affecting soil microbial biomass.$h[electronic resource] 260 $c2017 500 $aArticle history: Received 19 June 2017; Received in revised form 20 October 2017; Accepted 21 October 2017; Available online 07 November 2017. The research leading to these results has received funding from "la Caixa" Banking Foundation . The authors express their gratitude to the analytical staff of the Department of Chemistry and the Department of Environmental Biology of the University of Navarra for its assistance, J.M. Otano, J.J Irigoyen and I. Pascual, in particular. Rothamsted Research is sponsored by the BBSRC . 520 $aABSTRACT. The present work was carried out to assess the effect of atmospheric ammonia (NH3) on soil physicochemical properties, soil enzymatic activities (β-glucosidase -β-GLU-, nitrate reductase ?NR-, urease ?UR-, protease ?PRO-, acid phosphatase ?PHO-, dehydrogenase ?DHA-), soil microbial biomass and soil respiration. The study was conducted along a NH3 gradient in a Q. pubescens Milld. forest in the vicinity of two livestock farms. Because of NHy (NHy: NH3 and NH4+) deposition, N saturation was detected up to 330 m from the farms. This excess of N led to a decrease in soil C:N and an increase in soil nitrification processes, which resulted in an accumulation of the heavy N isotope (15N) in the soil. N saturation was also reflected in the activity of NR enzyme, which was inhibited. On the other hand, while UR enzyme was inhibited close to the farms possibly due to the high amount of N-NH4+ resulting from the hydrolysis of NH3, PRO activity was stimulated by the presence of organic nitrogen compounds and the need of soil organisms to meet the C demand. In addition, the activity of PHO and β-GLU enzymes was regulated by the relative amount of C and P that organisms need. Regarding biological variables, enhanced NH3 reduced soil microbial biomass and biomass respiratory efficiency. Finally, soil enzyme activities and soil microbial biomass have proved to be good biological indicators of soil quality. © 2017 Elsevier Ltd 653 $aATMOSPHERIC AMMONIA 653 $aMETABOLIC QUOTIENT 653 $aSOIL EXTRACELLULAR ENZYMES 653 $aSOIL MICROBIAL BIOMASS 653 $aSOIL RESPIRATION 700 1 $aARANGO-MORA, C. 700 1 $aSANTAMARÍA, C. 700 1 $aLASHERAS, E. 700 1 $aSANTAMARÍA, J.M. 700 1 $aCIGANDA, V. 700 1 $aCÁRDENAS, L.M. 700 1 $aELUSTONDO, D. 773 $tSoil Biology and Biochemistry, 2017$gv.116, p.378-387.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
22/02/2014 |
Autor : |
Capettini, F. ; Arias, G. ; Perrou, R. ; Díaz de Ackermann, M. ; Troche, L. |
Título : |
Evaluación de genotipos en el Ensayo de primer año : evaluación de Cebada cervecera |
Fecha de publicación : |
1992 |
Fuente / Imprenta : |
ln: Reunión Nacional de Investigadores de Cebada Cervecera, 2 : 1991 may 21-23 : Colonia [Memorias]. Montevideo (Uruguay): INIA, 1992. |
Páginas : |
p16-24 |
Idioma : |
Español |
Thesagro : |
CEBADA CERVECERA; ENSAYOS DE VARIEDADES; EVALUACION; GENOTIPOS. |
Asunto categoría : |
-- |
Marc : |
LEADER 00693naa a2200217 a 4500 001 1044608 005 2014-02-22 008 1992 bl uuuu u00u1 u #d 100 1 $aCAPETTINI, F. 245 $aEvaluación de genotipos en el Ensayo de primer año$bevaluación de Cebada cervecera 260 $c1992 300 $ap16-24 650 $aCEBADA CERVECERA 650 $aENSAYOS DE VARIEDADES 650 $aEVALUACION 650 $aGENOTIPOS 700 1 $aARIAS, G. 700 1 $aPERROU, R. 700 1 $aDÍAZ DE ACKERMANN, M. 700 1 $aTROCHE, L. 773 $tln: Reunión Nacional de Investigadores de Cebada Cervecera, 2 : 1991 may 21-23 : Colonia [Memorias]. Montevideo (Uruguay): INIA, 1992.
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