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Artículo

Soil nitrogen availability under grasses of different palatability in a temperate semi-arid rangeland of central Argentina

Moretto, Alicia SusanaIcon ; Distel, Roberto AlejandroIcon
Fecha de publicación: 10/2002
Editorial: Wiley Blackwell Publishing, Inc
Revista: Austral Ecology
ISSN: 1442-9985
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Grazing by domestic livestock is frequently associated with the replacement of high-nutrient palatable species with low-nutrient unpalatable species, which may have a substantial effect on nutrient cycling. The objective of the present study was to compare soil N availability and net N mineralization in soils under Poa ligularis (palatable grass) with those in soils under Stipa tenuissima (unpalatable grass) in a temperate semi-arid rangeland of central Argentina. Nitrogen availability and net mineralization under laboratory and field conditions were measured. Soil N availability under P. ligularis was higher than or similar to soil N availability under S. tenuissima. In situ net N mineralization in the soil under P. ligularis was lower than or similar to net N mineralization in the soil under S. tenuissima. Potential net N mineralization was greater in the soil under P. ligularis than in the soil under S. tenuissima. Our results suggest that the replacement of palatable grasses by unpalatable grasses in the temperate semi-arid rangelands of central Argentina may imply a reduction in the rate of nutrient cycling.
Palabras clave: Nutrien Cycling , Nitrogen Mineralization , Poa Ligularis , Stipa Tenuissima
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/32678
URL: http://onlinelibrary.wiley.com/doi/10.1046/j.1442-9993.2002.01207.x/full
DOI: http://dx.doi.org/10.1046/j.1442-9993.2002.01207.x
Colecciones
Articulos(CERZOS)
Articulos de CENTRO REC.NAT.RENOVABLES DE ZONA SEMIARIDA(I)
Citación
Moretto, Alicia Susana; Distel, Roberto Alejandro; Soil nitrogen availability under grasses of different palatability in a temperate semi-arid rangeland of central Argentina; Wiley Blackwell Publishing, Inc; Austral Ecology; 27; 5; 10-2002; 509-514
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