Biogenic isoprenoid emissions under drought stress: different responses for isoprene and terpenes
Boris Bonn,Ruth-Kristina Magh,Joseph Rombach,and Jürgen Kreuzwieser
Boris Bonn
Chair of Ecosystem Physiology/Chair of Tree Physiology, Faculty of Environment and Natural Resources, Albert-Ludwigs-Universität, Georges-Köhler-Allee 053, 79110 Freiburg i.Br., Germany
Ruth-Kristina Magh
Chair of Ecosystem Physiology/Chair of Tree Physiology, Faculty of Environment and Natural Resources, Albert-Ludwigs-Universität, Georges-Köhler-Allee 053, 79110 Freiburg i.Br., Germany
Joseph Rombach
Chair of Ecosystem Physiology/Chair of Tree Physiology, Faculty of Environment and Natural Resources, Albert-Ludwigs-Universität, Georges-Köhler-Allee 053, 79110 Freiburg i.Br., Germany
Chair of Ecosystem Physiology/Chair of Tree Physiology, Faculty of Environment and Natural Resources, Albert-Ludwigs-Universität, Georges-Köhler-Allee 053, 79110 Freiburg i.Br., Germany
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The effect of soil water availability (SWA) on emissions of isoprenoids by trees was studied by setting up a parameterization from published data. SWA impact on isoprene emissions can be described by a growth type curve, while monoterpene emissions display a pattern reflecting plants’ stomata opening. Sesquiterpene fluxes tend to increase at the start of severe drought until resources decline. Feedbacks on atmospheric processes such as ozone and aerosol particles are further studied.
The effect of soil water availability (SWA) on emissions of isoprenoids by trees was studied by...