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Delta O-18 signature and phosphate pools in selected soil groups

Soil P-cycling is an issue that requires a great deal of attention regarding the importance of P in all living organisms. This study focused its attention in four selected soils: Ferralsols (China) and Andosols (Indonesia), which are used for paddy rice cultivation; Luvisols (Germany) covered by win...

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Autor Principal: Ortiz Navarro, Mar?a Soledad
Otros Autores: Wulf, Amelug
Formato: Tesis de Maestría
Lenguaje:deu
Publicado: Alemania / Universidad de Bonn / 2015 2016
Materias:
ANDOSOLS
CHEMOZEMS
CONTENIDO DE FOSFORO
EQUILIBRIO DE ISOT?POS
Acceso en línea:http://repositorio.educacionsuperior.gob.ec/handle/28000/1995
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spelling oai:localhost:28000-19952017-02-20T15:19:48Z Delta O-18 signature and phosphate pools in selected soil groups Ortiz Navarro, Mar?a Soledad Wulf, Amelug Lehndorff, Eva ANDOSOLS CHEMOZEMS CONTENIDO DE FOSFORO EQUILIBRIO DE ISOT?POS Soil P-cycling is an issue that requires a great deal of attention regarding the importance of P in all living organisms. This study focused its attention in four selected soils: Ferralsols (China) and Andosols (Indonesia), which are used for paddy rice cultivation; Luvisols (Germany) covered by winter wheat cultivars and Chernozems (Russia) covered by natural steppe vegetation. The study hypothesizes that the soil-forming factors and anthropogenic influences determine the composition of phosphate pools and the ?18-O signature. The soil samples were taken from different depths and each one was processed according to Hedley et al. (1982) modified by Tiessen and Moir (1993) and to modified from Tamburini et al.(2010). Pi concentration was measured by the Molybdenum Blue method of Murphy & Riley (1962), PT content was determined using ICP-OES, and Po by the difference between P and Pi, while ?18OP was measured using TC/EA-IRMS. T 2016-05-20T13:56:30Z 2016-05-20T13:56:30Z 2015-08-27 masterThesis Ortiz Navarro, Mar?a Soledad. (2015). Delta O-18 signature and phosphate pools in selected soil groups. (Trabajo de titulaci?n de la Maestr?a en Ciencias Agricolas y Manejo de Recursos Naturales en Tr?picos y Sub-Tr?picos). Universidad de Bonn. Alemania. 56 p. http://repositorio.educacionsuperior.gob.ec/handle/28000/1995 deu 56 p. Alemania / Universidad de Bonn / 2015
institution SENESCYT
collection Repositorio SENESCYT
biblioteca Biblioteca Senescyt
language deu
format Tesis de Maestría
topic ANDOSOLS
CHEMOZEMS
CONTENIDO DE FOSFORO
EQUILIBRIO DE ISOT?POS
spellingShingle ANDOSOLS
CHEMOZEMS
CONTENIDO DE FOSFORO
EQUILIBRIO DE ISOT?POS
Ortiz Navarro, Mar?a Soledad
Delta O-18 signature and phosphate pools in selected soil groups
description Soil P-cycling is an issue that requires a great deal of attention regarding the importance of P in all living organisms. This study focused its attention in four selected soils: Ferralsols (China) and Andosols (Indonesia), which are used for paddy rice cultivation; Luvisols (Germany) covered by winter wheat cultivars and Chernozems (Russia) covered by natural steppe vegetation. The study hypothesizes that the soil-forming factors and anthropogenic influences determine the composition of phosphate pools and the ?18-O signature. The soil samples were taken from different depths and each one was processed according to Hedley et al. (1982) modified by Tiessen and Moir (1993) and to modified from Tamburini et al.(2010). Pi concentration was measured by the Molybdenum Blue method of Murphy & Riley (1962), PT content was determined using ICP-OES, and Po by the difference between P and Pi, while ?18OP was measured using TC/EA-IRMS. T
author2 Wulf, Amelug
author_facet Wulf, Amelug
Ortiz Navarro, Mar?a Soledad
author Ortiz Navarro, Mar?a Soledad
author_sort Ortiz Navarro, Mar?a Soledad
title Delta O-18 signature and phosphate pools in selected soil groups
title_short Delta O-18 signature and phosphate pools in selected soil groups
title_full Delta O-18 signature and phosphate pools in selected soil groups
title_fullStr Delta O-18 signature and phosphate pools in selected soil groups
title_full_unstemmed Delta O-18 signature and phosphate pools in selected soil groups
title_sort delta o-18 signature and phosphate pools in selected soil groups
publisher Alemania / Universidad de Bonn / 2015
publishDate 2016
url http://repositorio.educacionsuperior.gob.ec/handle/28000/1995
_version_ 1634995064380850176
score 11,871979

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