Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations

Waterhouse, John S. and Switsur, V.R. and Barker, A.C. and Carter, A.H.C. and Hemming, D.L. and Loader, Neil J. and Robertson, I. (2004) Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. Quaternary Science Reviews. ISSN 0277-3791

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Abstract

In order to predict accurately how elevated atmospheric CO2 concentrations will affect the global carbon cycle, it is necessary to know how trees respond to increasing CO2 concentrations. In this paper we examine the response over the period AD 1895 – 1994 of three tree species growing across northern Europe to increases in atmospheric CO2 concentrations using parameters derived from stable carbon isotope ratios of trunk cellulose. Using the isotope data we calculate values of intrinsic water-use efficiency (IWUE) and intercellular CO2 concentrations in the leaf (ci). Our results show that trees have responded to higher levels of atmospheric CO2 by increasing IWUE whilst generally maintaining constant ci values. However, the IWUE of most of the trees in this study has not continued to rise in line with increasing atmospheric CO2. This behaviour has implications for estimations of future terrestrial carbon storage.

Item Type: Journal Article
Additional Information: Citation: Waterhouse, J.S., et al., 2004. Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. Quaternary Science Reviews, 23(7-8), pp.803-810..
Faculty: Faculty of Science & Technology
Depositing User: Mr I Walker
Date Deposited: 19 Nov 2010 13:41
Last Modified: 30 Jun 2017 09:18
URI: http://arro.anglia.ac.uk/id/eprint/115945

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