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dc.contributor.authorPaz Ferreiro, J.-
dc.contributor.authorTrasar-Cepeda, Carmen-
dc.contributor.authorLeirós, M. C.-
dc.identifier.citationBiological and Fertility of Soils 45:711–722 (2009)es_ES
dc.description.abstractThe maintenance of soil quality is critical for ensuring the sustainability of the environment and the biosphere. Although soil biochemical properties are considered good indicators of changes in soil quality, few studies have been made of the changes in biochemical properties brought about by anthropogenic disturbance of grassland ecosystems. In the present study, several biochemical properties were analysed in 31 grassland soils subjected to a high level of management, and the values obtained were compared with known values corresponding to native grasslands from the same region (Galicia, NW Spain). The 31 managed grasslands were divided in two groups (re-sown grasslands and improved grasslands) according to their management and past land use. The biochemical properties studied were: labile carbon, microbial biomass carbon, microbial respiration, metabolic quotient, net nitrogen mineralization, and the activities of the following enzymes: dehydrogenase, catalase, phosphodiesterase, phosphomonoesterase, casein-protease, BAA-protease, urease, cellulase, ß-glucosidase, invertase and arylsulphatase. Managed grasslands exhibited lower values of soil biochemical properties than native grasslands. Three biochemical equilibrium equations were used to compare soil quality in managed and native grasslands. One of the equations did not show any significant difference between the groups of grassland soils considered. On the contrary, two of the equations showed similar soil quality for improved and native grasslands, while re-sown grasslands exhibited a loss of soil quality when compared to native grassland soils.es_ES
dc.description.sponsorshipThe present study was financed by the Spanish Ministry of Science and Technology, under Project No. BTE2001-0987. J. Paz-Ferreiro thanks the Spanish Ministry of Education for financial support (FPU programme).-
dc.subjectSoil biochemical propertieses_ES
dc.subjectSoil qualityes_ES
dc.subjectGrassland managementes_ES
dc.subjectSoil enzymeses_ES
dc.subjectSoil organic matteres_ES
dc.titleBiochemical properties in managed grassland soils in a temperate humid zone: modifications of soil quality as a consequence of intensive grassland use.es_ES
dc.description.peerreviewedPeer reviewedes_ES
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