Autor(es):
Fonseca, Felícia 
; Figueiredo, Tomás de ; Martins, Afonso
Data: 2013
Identificador Persistente: http://hdl.handle.net/10198/9968
Origem: Biblioteca Digital do IPB
Detalhes do Documento
Site preparation impacts on physical and chemical forest soil quality indicators
Descrição
Forest soils in the Mediterranean region frequently have limited rooting depth, high coarse elements and low organic matter content, which tend to limit water storage in the soil profile. Accordingly, application of site preparation techniques is essential to enhance soil water storage and availability in these environments (Querejeta et al., 2001; Alcázar et al., 2002; Piatek et al., 2003; Imaz et al., 2010). However, site preparation for afforestation currently lacks accurate planning, based on sound experimental results driving to techniques most adequate to each situation and respecting stand productivity and ecosystem sustainability requirements. Improving soil quality is one of the most important factors for sustaining the global biosphere and fundamental in forest systems sustainability (Wang and Gong, 1998). A simple set of established soil properties can provide useful information on soil quality (Sparling et al., 2004). Soil quality has been defined as “the capacity of a soil to function within ecosystem boundaries to sustain biological productivity, maintain environmental quality, and promote plant and animal health'' (Doran and Parkin, 1994). Land use and management practices seriously impact the direction and degree of soil quality changes in time and space (Wang and Gong, 1998). Possibly the most significant impact of site preparation from a soil quality perspective is on rooting depth and soil hydrological processes, because increase the availability of resources that plants have access (water and nutrients). Runoff and sediment loss is commonly highest in the first few years after site preparation, for the reason that canopy cover is scarce and ground vegetation may be insufficient for controlling erosion (Lucci and Della Lena 1994; Figueiredo et al., 2011).
Forest soils in the Mediterranean region frequently have limited rooting depth, high coarse elements and low organic matter content, which tend to limit water storage in the soil profile. Accordingly, application of site preparation techniques is essential to enhance soil water storage and availability in these environments (Querejeta et al., 2001; Alcázar et al., 2002; Piatek et al., 2003; Imaz et al., 2010). However, site preparation for afforestation currently lacks accurate planning, based on sound experimental results driving to techniques most adequate to each situation and respecting stand productivity and ecosystem sustainability requirements. Improving soil quality is one of the most important factors for sustaining the global biosphere and fundamental in forest systems sustainability (Wang and Gong, 1998). A simple set of established soil properties can provide useful information on soil quality (Sparling et al., 2004). Soil quality has been defined as “the capacity of a soil to function within ecosystem boundaries to sustain biological productivity, maintain environmental quality, and promote plant and animal health'' (Doran and Parkin, 1994). Land use and management practices seriously impact the direction and degree of soil quality changes in time and space (Wang and Gong, 1998). Possibly the most significant impact of site preparation from a soil quality perspective is on rooting depth and soil hydrological processes, because increase the availability of resources that plants have access (water and nutrients). Runoff and sediment loss is commonly highest in the first few years after site preparation, for the reason that canopy cover is scarce and ground vegetation may be insufficient for controlling erosion (Lucci and Della Lena 1994; Figueiredo et al., 2011).
Tipo de Documento
Parte ou capítulo de livro
Idioma Inglês
Idioma Inglês
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