dc.contributor.author |
Waterhouse, JS
|
en_US |
dc.contributor.author |
Switsur, VR
|
en_US |
dc.contributor.author |
Barker, AC
|
en_US |
dc.contributor.author |
Carter, AHC
|
en_US |
dc.contributor.author |
Hemming, DL
|
en_US |
dc.contributor.author |
Loader, NJ
|
en_US |
dc.contributor.author |
Robertson, I
|
en_US |
dc.date.accessioned |
2007-02-08T07:33:03Z |
en_US |
dc.date.accessioned |
2007-06-07T10:08:48Z |
|
dc.date.available |
2007-02-08T07:33:03Z |
en_US |
dc.date.available |
2007-06-07T10:08:48Z |
|
dc.date.copyright |
|
en_US |
dc.date.issued |
2004-04 |
en_US |
dc.identifier.citation |
Waterhouse, JS, et al. 2004. Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. Quaternary Science Reviews, vol 23, 8 July, pp 803-810 |
en_US |
dc.identifier.issn |
0277-3791 |
en_US |
dc.identifier.uri |
http://hdl.handle.net/10204/1642
|
en_US |
dc.identifier.uri |
http://hdl.handle.net/10204/1642
|
|
dc.description.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, the response is examined 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, values of intrinsic water-use efficiency (IWUE) and intercellular CO2 concentrations in the leaf c (i)are calculated. The results show that trees have responded to higher levels of atmospheric CO2 by increasing IWUE whilst generally maintaining constant c (i) 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. The study illustrates, how trees world-wide are adapting to increasing levels of atmospheric CO2 in different ways. The reduction in sensitivity of IWUE to increasing Ca shown by most of the trees in this study may be related to the loss in climatic sensitivity of latewood relative densities in recent years. If a long-term or permanent reduction in sensitivity to atmospheric CO2 is established for a significant proportion of trees in temperate regions, the degree of future terrestrial carbon storage will have been greatly overestimated. |
en_US |
dc.format.extent |
458781 bytes |
en_US |
dc.format.mimetype |
application/pdf |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Pergamon-Elsevier Science Ltd |
en_US |
dc.rights |
Copyright: 2004 Pergamon-Elsevier Science Ltd |
en_US |
dc.source |
|
en_US |
dc.subject |
Atmospheric carbon dioxide |
en_US |
dc.subject |
IWUE |
en_US |
dc.subject |
Intinsic water-use efficiency |
en_US |
dc.subject |
Tree-trunk cellulose |
en_US |
dc.subject |
Carbon isotopes ratios |
en_US |
dc.subject |
Geosciences |
en_US |
dc.title |
Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Waterhouse, J., Switsur, V., Barker, A., Carter, A., Hemming, D., Loader, N., & Robertson, I. (2004). Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. http://hdl.handle.net/10204/1642 |
en_ZA |
dc.identifier.chicagocitation |
Waterhouse, JS, VR Switsur, AC Barker, AHC Carter, DL Hemming, NJ Loader, and I Robertson "Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations." (2004) http://hdl.handle.net/10204/1642 |
en_ZA |
dc.identifier.vancouvercitation |
Waterhouse J, Switsur V, Barker A, Carter A, Hemming D, Loader N, et al. Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations. 2004; http://hdl.handle.net/10204/1642. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Waterhouse, JS
AU - Switsur, VR
AU - Barker, AC
AU - Carter, AHC
AU - Hemming, DL
AU - Loader, NJ
AU - Robertson, I
AB - 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, the response is examined 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, values of intrinsic water-use efficiency (IWUE) and intercellular CO2 concentrations in the leaf c (i)are calculated. The results show that trees have responded to higher levels of atmospheric CO2 by increasing IWUE whilst generally maintaining constant c (i) 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. The study illustrates, how trees world-wide are adapting to increasing levels of atmospheric CO2 in different ways. The reduction in sensitivity of IWUE to increasing Ca shown by most of the trees in this study may be related to the loss in climatic sensitivity of latewood relative densities in recent years. If a long-term or permanent reduction in sensitivity to atmospheric CO2 is established for a significant proportion of trees in temperate regions, the degree of future terrestrial carbon storage will have been greatly overestimated.
DA - 2004-04
DB - ResearchSpace
DP - CSIR
KW - Atmospheric carbon dioxide
KW - IWUE
KW - Intinsic water-use efficiency
KW - Tree-trunk cellulose
KW - Carbon isotopes ratios
KW - Geosciences
LK - https://researchspace.csir.co.za
PY - 2004
SM - 0277-3791
T1 - Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations
TI - Northern European trees show a progressively diminishing response to increasing atmospheric carbon dioxide concentrations
UR - http://hdl.handle.net/10204/1642
ER -
|
en_ZA |