<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>3</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Verkaik, E</style></author><author><style face="normal" font="default" size="100%">Bartelink, H H</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Mohren, GMJ and Kramer, K and Sabate, S</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of long-term elevated CO2 on foliage characteristics of Quercus ilex L. and Juniperus communis L.</style></title><secondary-title><style face="normal" font="default" size="100%">IMPACTS OF GLOBAL CHANGE ON TREE PHYSIOLOGY AND FOREST ECOSYSTEMS</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CO2-springs</style></keyword><keyword><style  face="normal" font="default" size="100%">nitrogen</style></keyword><keyword><style  face="normal" font="default" size="100%">starch</style></keyword><keyword><style  face="normal" font="default" size="100%">stomatal density</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1998</style></year></dates><publisher><style face="normal" font="default" size="100%">SPRINGER</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS</style></pub-location><volume><style face="normal" font="default" size="100%">52</style></volume><pages><style face="normal" font="default" size="100%">239-242</style></pages><isbn><style face="normal" font="default" size="100%">0-7923-4921-0</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">To study the effects of long-term elevated CO2 on Quercus ilex and&lt;br/&gt;Juniperus communis, leaves from plants growing close to a natural CO2&lt;br/&gt;spring and from plants at a control site were collected and analyzed.&lt;br/&gt;Starch concentrations in leaves were found to be higher for plants&lt;br/&gt;growing under high CO2. Nitrogen concentrations were lower, but only in&lt;br/&gt;Juniperus communis. No differences in stomatal densities were found. The&lt;br/&gt;results indicate that in a CO2 -elevated environment, growth of both&lt;br/&gt;species will be different: Quercus ilex will be able to take advantage&lt;br/&gt;of the higher CO2 levels in spring, whereas in both species limited sink&lt;br/&gt;availability in the middle of the growing season will result in&lt;br/&gt;increased starch concentrations.</style></abstract></record></records></xml>