[IAWA Forum] Radial water transport

From: Paolo Cherubini <paolo.cherubini@wsl.ch>
Subject: [IAWA Forum] Radial water transport
Date: Mon, 7 Oct 2002 16:47:14 +0200

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Hi,

this is very intriguing question. We are measuring 15N natural 
abundance in tree rings of different species in Southern Switzerland 
(high polluted region with very elevated nitrogen deposition) and we 
observe different species-specific behaviour. We are sure that there 
is a fractionation during the movement of water (and nitrogen) from 
the inner part of the stem to the outermost one. We believe that the 
wood-anatomical structure plays a key role in these processes. 
However, unfortunately we have not yet found good refs.

I am glad I'm on this forum!

Paolo
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Forest Ecosystems and Ecological Risks
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