<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Caritat, A</style></author><author><style face="normal" font="default" size="100%">Molinas, M</style></author><author><style face="normal" font="default" size="100%">Vilar, L</style></author><author><style face="normal" font="default" size="100%">Masson, Ph.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efecto de los tratamientos silvopastorales en el crecimiento del alcornoque</style></title><secondary-title><style face="normal" font="default" size="100%">Scientia gerundensis</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Alcornoque</style></keyword><keyword><style  face="normal" font="default" size="100%">crecimiento apical</style></keyword><keyword><style  face="normal" font="default" size="100%">Crecimiento radial</style></keyword><keyword><style  face="normal" font="default" size="100%">desbroce</style></keyword><keyword><style  face="normal" font="default" size="100%">pastoreo (voyant)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year></dates><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">27-35</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Comparative effects of shrub clearing and grazing on the apical and radial growth of the cork oak have been studied in four cork oak wood stations. Shoot growth segments and annual wood rings were measured in 10 selected trees in every plot. Average shoot elongation's oscillate between 2.5 to 4.8 cm; annual wood rings from 0.95 to 2.05 mm and annual radial growth of wood plus cork from 2.3 to 5.7 mm. Significative differences were found between silvo-pastoral treatments in relation to apical elongation. In treated plots, the apical growth of segments that reach the maximum elongation can be a 75% higher than in control plots. This increment on shoot growth can be explained by the decrease in plant competition and by the nutrient contribution of grazing. No significative effects of treatments on radial growth have been found.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Robert, B</style></author><author><style face="normal" font="default" size="100%">Caritat, A</style></author><author><style face="normal" font="default" size="100%">Bertoni, G</style></author><author><style face="normal" font="default" size="100%">Vilar, L</style></author><author><style face="normal" font="default" size="100%">Molinas, M</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Nutrient content and seasonal fluctuations in the leaf component of coark-oak (Quercus suber L.) litterfall</style></title><secondary-title><style face="normal" font="default" size="100%">Plant Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">litterfall</style></keyword><keyword><style  face="normal" font="default" size="100%">nutrient return</style></keyword><keyword><style  face="normal" font="default" size="100%">nutrients in leaves</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus Suber L</style></keyword><keyword><style  face="normal" font="default" size="100%">retranslocation</style></keyword><keyword><style  face="normal" font="default" size="100%">seasonal trends</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><volume><style face="normal" font="default" size="100%">122</style></volume><pages><style face="normal" font="default" size="100%">29-35</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Nutrient content and seasonality of the leaf component in cork-oak litterfal were studied over a two year period in two cork-oak forest sites differing in biomass and edaphic condition in the north-eastern Iberian peninsula. Fallen senescent leaves compared to young leaves showed higher non-mobile nutrient concentrations and lower mobile nutrient concentrations, specially P, N, K, and Mg. At both sites, seasonal fluctuations affected both leaf production and leaf mineral content. The maximum leaf fall period correspond to the start of the vegetative growth and to the lowest N and P concentration in the falling leaves. The opposite was true for the winter, when litterfal was minimal and N and P content in falling leaves was at a maximum. The comparison between falling leaves and canopy leaves suggests that the analysis of fallen leaves can be a useful measure of N and P nutrition in cork-oak. We found site dependent differences in nutrient content and nutrient remobilization. In comparison with Q. ilex, although litter production was in the same range, nutrient retranslocation was greater for Q. suber.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Vilar, L</style></author><author><style face="normal" font="default" size="100%">Polo, L</style></author><author><style face="normal" font="default" size="100%">Planella, D</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Los alcornocales de la provincia de Girona.</style></title><secondary-title><style face="normal" font="default" size="100%">Scientia gerundensis</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Cork oak</style></keyword><keyword><style  face="normal" font="default" size="100%">cork oak grove</style></keyword><keyword><style  face="normal" font="default" size="100%">ecological typification</style></keyword><keyword><style  face="normal" font="default" size="100%">forest evolution</style></keyword><keyword><style  face="normal" font="default" size="100%">Girona country</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1989</style></year></dates><volume><style face="normal" font="default" size="100%">15</style></volume><pages><style face="normal" font="default" size="100%">143-151</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A first attempt to typify the ecology of cork oak in Girona country (NE part of Iberian Peninsula) is done. The evolution of forest cork oak grove's areas in recent decades is given. We found that it is in regression and it would be necessary urgent actions to recuperate it.</style></abstract></record></records></xml>