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handle: 10261/19714
[ES] La actividad humana es una de las principales causas de la degradación física, química y biológica de los suelos. Dicha degradación implica un cambio en la calidad del suelo, ya que supone tanto una disminución en la productividad como cambios en las funciones ecológicas del suelo. El objetivo del presente estudio fue investigar el efecto del uso del suelo sobre las propiedades bioquímicas, con el fin de proporcionar datos que permitan estimar la utilidad de las actividades enzimáticas como indicadores de la calidad del suelo. Además de las propiedades físicas y químicas de los suelos, se analizaron diferentes hidrolasas implicadas en los ciclos del C, N, P y S, así como otras propiedades bioquímicas tales como el carbono asociado a la biomasa microbiana o la respiración basal del suelo. Los resultados obtenidos permitieron obtener diversas conclusiones en relación a los principales procesos que afectan a las propiedades bioquímicas en los suelos afectados por la actividad humana.
[EN] Human activity is one of the main causes of the physical, chemical and biological degradation of soils. This degradation implies a change in soil quality as it involves both a decrease in productivity and changes in the ecological functions of the soil. The objective of the present study was to investigate the effect of soil use on soil biochemical properties, with the aim of providing data that allow assessment of the usefulness of enzymatic activities as indicators of soil quality. In addition to physical and chemical properties, different hydrolase enzymes involved in the C, N, P and S cycles, and other biochemical properties, such as the microbial biomass C and soil basal respiration, were analysed. The results obtained allowed different conclusions to be reached regarding the main processes involving the biochemical properties in soils affected by human activity.
The present study is a summary of a wider paper to be Publisher in Soil Biology and Biochemistry. This was presented as a Keynote to the 3 International Conference on Soil Enzymes (Viterbo, Italy), 15-19 July 2007 and, partly, as a invited Conference to the Segundo Simposio Internacional: Suelo, Ecologí a y Medioambiente (Temuco, Chile), 8-9 noviembre 2007.
This study was financed by the Xunta de Galicia (Project No. XUGA 40003B94) and by the MCYT (ProjectNo. BTE 2001-0987). The authors thank Ana I. Iglesias-Tojo, Carolina López-Cotón, Támara Migué ns, Jorge Paz-Ferreiro and Diana Bello for their assistance in carrying out the analyses.
Peer reviewed
soil biochemical properties, Soil management, Enzimas del suelo, Soil enzymes, forest soils, Agricultural soils, Suelos forestales, Forest soils, Manejo del suelo, Propiedades bioquímicas del suelo, Soil biochemical properties, Suelos agrícolas, uso del suelo, Uso del suelo, soil use, propiedades bioquímicas del suelo, suelos forestales, manejo del suelo, suelos agrícolas, Soil use, agricultural soils, soil management
soil biochemical properties, Soil management, Enzimas del suelo, Soil enzymes, forest soils, Agricultural soils, Suelos forestales, Forest soils, Manejo del suelo, Propiedades bioquímicas del suelo, Soil biochemical properties, Suelos agrícolas, uso del suelo, Uso del suelo, soil use, propiedades bioquímicas del suelo, suelos forestales, manejo del suelo, suelos agrícolas, Soil use, agricultural soils, soil management
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