<?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%">Büker, P.</style></author><author><style face="normal" font="default" size="100%">Morrissey, T.</style></author><author><style face="normal" font="default" size="100%">Briolat, A.</style></author><author><style face="normal" font="default" size="100%">Falk, R.</style></author><author><style face="normal" font="default" size="100%">Simpson, D.</style></author><author><style face="normal" font="default" size="100%">Tuovinen, J.-P.</style></author><author><style face="normal" font="default" size="100%">Alonso, R.</style></author><author><style face="normal" font="default" size="100%">Barth, S.</style></author><author><style face="normal" font="default" size="100%">Baumgarten, M.</style></author><author><style face="normal" font="default" size="100%">Grulke, N.</style></author><author><style face="normal" font="default" size="100%">Karlsson, P. E.</style></author><author><style face="normal" font="default" size="100%">King, J.</style></author><author><style face="normal" font="default" size="100%">Lagergren, F.</style></author><author><style face="normal" font="default" size="100%">Matyssek, R.</style></author><author><style face="normal" font="default" size="100%">Nunn, A.</style></author><author><style face="normal" font="default" size="100%">Ogaya, R.</style></author><author><style face="normal" font="default" size="100%">Penuelas, J.</style></author><author><style face="normal" font="default" size="100%">Rhea, L.</style></author><author><style face="normal" font="default" size="100%">Schaub, M.</style></author><author><style face="normal" font="default" size="100%">Uddling, J.</style></author><author><style face="normal" font="default" size="100%">Werner, W.</style></author><author><style face="normal" font="default" size="100%">Emberson, L. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DO3SE modelling of soil moisture to determine ozone flux to forest trees</style></title><secondary-title><style face="normal" font="default" size="100%">Atmospheric Chemistry and Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">DO3SE</style></keyword><keyword><style  face="normal" font="default" size="100%">Drought (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">Modeling</style></keyword><keyword><style  face="normal" font="default" size="100%">soil water</style></keyword><keyword><style  face="normal" font="default" size="100%">Stomatal conductance</style></keyword><keyword><style  face="normal" font="default" size="100%">Stomatal ozone ﬂux</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2012///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.atmos-chem-phys.net/12/5537/2012/</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">5537 - 5562</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The DO3SE (Deposition of O3 for Stomatal Exchange) model is an established tool for estimating ozone (O3) deposition, stomatal ﬂux and impacts to a variety of vegetation types across Europe. It has been embedded within the EMEP (European Monitoring and Evaluation Programme) photochemical model to provide a policy tool capable of relating the ﬂux-based risk of vegetation damage to O3 precursor emission scenarios for use in policy formulation. A key limitation of regional ﬂux-based risk assessments has been the assumption that soil water deﬁcits are not limiting O3 ﬂux due to the unavailability of evaluated methods for modelling soil water deﬁcits and their inﬂuence on stomatal conductance (gsto), and subsequent O3 ﬂux. This paper describes the development and evaluation of a method to estimate soil moisture status and its inﬂuence on gsto for a variety of forest tree species. This DO3SE soil moisture module uses the Penman-Monteith energy balance method to drive water cycling through the soil-plantatmosphere system and empirical data describing gsto relationships with pre-dawn leaf water status to estimate the biological control of transpiration. We trial four different methods to estimate this biological control of the transpiration stream, which vary from simple methods that relate soil water content or potential directly to gsto, to more complex methods that incorporate hydraulic resistance and plant capacitance that control water ﬂow through the plant system. These methods are evaluated against ﬁeld data describing a variety of soil water variables, gsto and transpiration data for Norway spruce (Picea abies), Scots pine (Pinus sylvestris), birch (Betula pendula), aspen (Populus tremuloides), beech (Fagus sylvatica) and holm oak (Quercus ilex) collected from ten sites across Europe and North America. Modelled estimates of these variables show consistency with observed data when applying the simple empirical methods, with the timing and magnitude of soil drying events being captured well across all sites and reductions in transpiration with the onset of drought being predicted with reasonable accuracy. The more complex methods, which incorporate hydraulic resistance and plant capacitance, perform less well, with predicted drying cycles consistently underestimating the rate and magnitude of water loss from the soil. A sensitivity analysis showed that model performance was strongly dependent upon the local parameterisation of key model drivers such as the maximum gsto, soil texture, root depth and leaf area index. The results suggest that the simple modelling methods that relate gsto directly to soil water content and potential provide adequate estimates of soil moisture and inﬂuence on gsto such that they are suitable to be used to assess the potential risk posed by O3 to forest trees across Europe.</style></abstract><issue><style face="normal" font="default" size="100%">12</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">CISNEROS, O.</style></author><author><style face="normal" font="default" size="100%">MODREGO, P.</style></author><author><style face="normal" font="default" size="100%">RUEDA, J.</style></author><author><style face="normal" font="default" size="100%">ÁGREDA, T.</style></author><author><style face="normal" font="default" size="100%">ÁGUEDA, B.</style></author><author><style face="normal" font="default" size="100%">Alonso, R.</style></author><author><style face="normal" font="default" size="100%">J., GORDO</style></author><author><style face="normal" font="default" size="100%">SOMBRERO, A.</style></author><author><style face="normal" font="default" size="100%">DE BENITO, A.</style></author><author><style face="normal" font="default" size="100%">TENORIO, J. L.</style></author><author><style face="normal" font="default" size="100%">ZAMBRANA, E.</style></author><author><style face="normal" font="default" size="100%">WALTER, I.</style></author><author><style face="normal" font="default" size="100%">DE ANDRÉS, F.</style></author><author><style face="normal" font="default" size="100%">PICOS, J.</style></author><author><style face="normal" font="default" size="100%">BARREAL, E.</style></author><author><style face="normal" font="default" size="100%">VALERO, E.</style></author><author><style face="normal" font="default" size="100%">RAMOS, A.</style></author><author><style face="normal" font="default" size="100%">FERNÁNDEZ, L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Evaluación de diferentes alternativas de forestación y agricultura como sumideros de carbono en Castilla y León</style></title><secondary-title><style face="normal" font="default" size="100%">V Congreso Forestal Español</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chopo</style></keyword><keyword><style  face="normal" font="default" size="100%">CO2FIX</style></keyword><keyword><style  face="normal" font="default" size="100%">encina trufera</style></keyword><keyword><style  face="normal" font="default" size="100%">laboreo de conservación</style></keyword><keyword><style  face="normal" font="default" size="100%">Sumideros agroforestales</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2009///</style></date></pub-dates></dates><pages><style face="normal" font="default" size="100%">1 - 10</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">El proyecto SUM2006-00023-C05 plantea el análisis de diferentes alternativas agrícolas y forestales como herramienta para mejorar el efecto de sumidero de carbono en terrenos agrícolas de Castilla y León. Se materializa en una evaluación económica de las distintas alternativas por parte de una empresa afectada por el Plan Nacional de Asignación de Emisiones. Para ello se compara mediante el software CO2FIX el flujo de carbono en fincas de agricultura tradicional frente a diferentes alternativas (populicultura, truficultura, pino piñonero, cerezo y nogal para madera, laboreo mínimo, siembra directa, leguminosas arbustivas silvestres y cultivos agroenergéticos). También se analiza la aceptación de este tipo de proyecto por parte de los propietarios forestales de la región. En este artículo se desarrollan las principales aspectos prácticos que debería incluir un proyecto de “Uso de la Tierra, Cambio de Uso de la Tierra y Selvicultura” como sumidero de carbono (proyecto LULUCF según la terminología del Grupo Intergubernamental de Expertos Sobre el Cambio Climático –IPCC-); así como los problemas y limitaciones que existen en su aplicación práctica. Como ejemplo se exponen resultados parciales del proyecto, correspondientes a la comparación de fincas de cereal en Zamadueñas (Valladolid) y Valdegeña (Soria) con plantaciones forestales (de chopo y de encina trufera respectivamente) y distintos sistemas de laboreo</style></abstract><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;periodical: V Congreso Forestal Español&lt;br/&gt;pub-location: Avila</style></notes></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%">Alonso, R.</style></author><author><style face="normal" font="default" size="100%">Bermejo, V.</style></author><author><style face="normal" font="default" size="100%">Sanz, J.</style></author><author><style face="normal" font="default" size="100%">Valls, B.</style></author><author><style face="normal" font="default" size="100%">Elvira, S.</style></author><author><style face="normal" font="default" size="100%">Gimeno, B. S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Stomatal conductance of semi-natural Mediterranean grasslands: implications for the development of ozone critical levels.</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental pollution (Barking, Essex : 1987)</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Critical levels</style></keyword><keyword><style  face="normal" font="default" size="100%">Grasslands</style></keyword><keyword><style  face="normal" font="default" size="100%">Ozone</style></keyword><keyword><style  face="normal" font="default" size="100%">Semi-natural vegetation</style></keyword><keyword><style  face="normal" font="default" size="100%">Stomatal conductance</style></keyword></keywords><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><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/16895740</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">146</style></volume><pages><style face="normal" font="default" size="100%">692 - 698</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Intra-genus and intra-specific variation and the influence of nitrogen enrichment on net assimilation and stomatal conductance of some annual Trifolium species of Mediterranean dehesa grasslands were assessed under experimental conditions. Also gas exchange rates were compared between some Leguminosae and Poaceae species growing in the field in a dehesa ecosystem in central Spain. The results showed that the previously reported different O3 sensitivity of some Trifolium species growing in pots does not seem to be related to different maximum g(s) values. In addition, no clear differences on gas exchange rates could be attributed to Leguminosae and Poaceae families growing in the field, with intra-genus variation being more important than differences found between families. Further studies are needed to increase the database for developing a flux-based approach for setting O3 critical levels for semi-natural Mediterranean species.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;accession-num: 16895740</style></notes></record></records></xml>