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

Waterhouse, John S. and Switsur, V. Roy and Barker, Andrea C. and Carter, A. H. C. and Hemming, Debbie L. and Loader, Neil J. and Robertson, Iain (2004) Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. Quaternary Science Reviews, 23 (7-8). pp. 803-810. ISSN 1873-457X

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Official URL: https://doi.org/10.1016/j.quascirev.2003.06.011

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
Keywords: Carbon isotope ratios, Intrinsic water-use efficiency, Trees, Carbon dioxide, Atmosphere, Quercus robur, Fagus sylvatica, Pinus sylvestris
Faculty: ARCHIVED Faculty of Science & Technology (until September 2018)
Depositing User: Repository Admin
Date Deposited: 19 Nov 2010 13:41
Last Modified: 09 Sep 2021 19:03
URI: https://arro.anglia.ac.uk/id/eprint/115945

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