Tree water uptake enhances nitrogen acquisition in a fertilized boreal forest – but not under nitrogen poor conditions

Nils Henriksson, Hyungwoo Lim, John Marchall, Oskar Franklin, Ross McMurtrie, Reimo Lutter, Ruth Magh, Tomas Lundmark & Torgny Näsholm
Understanding how plant water uptake interacts with acquisition of soil nitrogen (N) and other nutrients is fundamental for predicting plant responses to a changing environment, but it is an area where models disagree. We present a novel isotopic labelling approach which reveals spatial patterns of water and N uptake, and their interaction, by trees. The stable isotopes 15N and 2H were applied to a small area of the forest floor in stands with high and...
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