<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors></contributors><titles><title><style face="normal" font="default" size="100%">Economic implications of different cork oak forest management systems</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of …</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><pub-location><style face="normal" font="default" size="100%">Évora</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The agro-silvopastoral system “montado” dominates the landscape of the south-western Iberian Peninsula, occupies approximately 3.1 million hectares of woodland in Spain and 1.2 million hectares in Portugal. The forest system “montado” is mostly dominated by Mediterranean evergreen oaks such as cork oak (Quercus suber L.) and holm oak (Quercus rotundifolia). The “montado” production system management aims the maintenance of a balanced sustainable land use to cope with the Mediterranean climate variability. One important issue in cork oak forests is the control shrub growth in order to prevent forest fire hazard, which is of high risk in Mediterranean climate. The two most common ways of controlling the shrub component is by mechanical destruction with soil disking (that implicates soil mobilization) or by shrub cutting (that is done with minimum impact on soil). The two referred techniques have different costs and different impacts on cork production and other goods and services (multifunctionality) of cork oak forests. In this paper, the two shrub control systems are compared and the results show that, although soil disking is more profitable than shrub cutting, the results are reversed, if one considers the carbon sequestration. This means that besides the great economic sustainability of cork oak dependence on the price of cork, the profitability of different shrub control methods depend also on the way society valuates other goods and services provided by cork oak forest</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors></contributors><titles><title><style face="normal" font="default" size="100%">Avaliação da morfologia dos sistemas radicais de plantas de regeneração do sobreiro através de imagem digital</style></title><secondary-title><style face="normal" font="default" size="100%">Revista de Ciências Agrarias</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2007///</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">30</style></volume><pages><style face="normal" font="default" size="100%">290 - 295</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The purpose of this study is to compare rooting patterns, namely root systems morphology of trees planted from seedlings with root systems morphology of seeded trees. The evolution of root systems can influence growth in future therefore it is important to monitor it. Data was collected in a stand installed in 1997. The evaluation of the root morphology was done using digital image analysis. Root system morphology and distribution of roots in different horizons was evaluated in eight trenches (4 trees planted + 4 trees seeded). The results show significant differences showing planted trees larger root area than seeded trees. It wasn’t found significant differences in the root system shape between planted and seeded trees.</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors></contributors><titles><title><style face="normal" font="default" size="100%">Produção silvícola no montado.: Análise e reflexão sobre a gestão sustentada dos montados de sobreiro</style></title><secondary-title><style face="normal" font="default" size="100%">Revista de Ciências Agrarias</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><pages><style face="normal" font="default" size="100%">181-189</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">“Montados” are systems where several productions are in dynamic equilibrium both in space and time. This spatial and temporal organisation enabled the system maintenance by the hazard control of each production, which is related with the climatic variability of the Mediterranean climate. The “montados” are characteristic of the south of Portugal, where the cork oak is the mostly frequent. In the cork oak “montados” the main production is cork, mostly associated with grazing and/or agriculture. It should also be stated the important role of the “montado” in the soil and water conservation, habitat and biodiversity conservation and amenities. The maintenance of the “montado” productive potential is associated to their resilience, which is especially dependent on the soil. The identification system fragilities allow pointing out guide lines for the sustainable management of the cork oak “montados”.</style></abstract></record></records></xml>