<?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%">Simioni, Guillaume</style></author><author><style face="normal" font="default" size="100%">Durand-Gillmann, Marion</style></author><author><style face="normal" font="default" size="100%">Huc, Roland</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Asymmetric competition increases leaf inclination effect on light absorption in mixed canopies</style></title><secondary-title><style face="normal" font="default" size="100%">Annals of Forest Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">3d modelling</style></keyword><keyword><style  face="normal" font="default" size="100%">leaf angle distribution</style></keyword><keyword><style  face="normal" font="default" size="100%">mixed forests</style></keyword><keyword><style  face="normal" font="default" size="100%">radiation absorption</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><isbn><style face="normal" font="default" size="100%">1359501202468</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&amp; Context The effects of leaf inclination on plant light capture, growth, and water balance of monospecific canopies are well documented, but we still lack information on such effects in the case of multispecific canopies. &amp; Aims We investigated the effects of leaf inclination on the absorption of photosynthetically active radiation (PAR) of a mixed forest. &amp; Methods We ran a 3D mechanistic radiation transfer model for a Mediterranean forest where Pinus halepensis makes the upper strata while Quercus ilex occupies the lower strata. As factors, we included (1) the distributions of leaf inclinations that ranged from vertical to horizontal (including the actual inclinations), (2) the fraction of diffuse light, sun position, and leaf area index (LAI), and (3) the Pinus/ Quercus LAI ratio. &amp; Results Simulated PAR absorption was more than twice as sensitive to leaf inclination in oaks than in pines because oaks depended on PAR transmitted below the pine layer. The extent of the effect depended on season, fraction of diffuse light, LAI, and vegetation spatial structure. None of the observed inclinations maximized PAR absorption, suggesting a trade-off with water economy. &amp; Conclusion Erroneous assumptions about leaf inclination lead to larger errors when modelling heterogeneous, mixed canopies. This also highlights potential caveats when using models that do not account for the spatial structure of canopies.</style></abstract></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%">Espelta, J. M.</style></author><author><style face="normal" font="default" size="100%">GENE, C.</style></author><author><style face="normal" font="default" size="100%">Retana, J.</style></author><author><style face="normal" font="default" size="100%">TERRADAS, J.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Teller, A. and Mathy</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">STRUCTURE OF MIXED HOLM-OAK (QUERCUS-ILEX) ALEPPO PINE (PINUS-HALEPENSIS) FORESTS IN NORTHEASTERN SPAIN</style></title><secondary-title><style face="normal" font="default" size="100%">RESPONSES OF FOREST ECOSYSTEMS TO ENVIRONMENTAL CHANGES</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">mixed forests</style></keyword><keyword><style  face="normal" font="default" size="100%">Pinus halepensis</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword><keyword><style  face="normal" font="default" size="100%">Spain</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1992</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1992///</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER APPL SCI PUBL LTD</style></publisher><pages><style face="normal" font="default" size="100%">892 - 893</style></pages><isbn><style face="normal" font="default" size="100%">1-85166-878-0</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Mixed forests of Aleppo pine (Pinus halepensis) and holm-oak (Quercus ilex) cover a great part of Northeastern Spain. Nevertheless, little is known about their structure, dynamics and regeneration. For some years, a research group in CREAF has collected data about those aspects, in order to use them to develop models that could be used as a tool for forest management. Previous results obteined about the structure of these stands are presented in the present paper.</style></abstract><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;periodical: RESPONSES OF FOREST ECOSYSTEMS TO ENVIRONMENTAL CHANGES&lt;br/&gt;pub-location: BARKING ESSEX</style></notes></record></records></xml>