Delta 13C in tree rings alfa-cellulose. A methodology of measurements and interpretation: state of the art

• Autorzy: Pawełczyk S. , Pazdur A.
• Języki publikacji: EN

Abstrakty

EN

The development of a tree is dependent upon the climatic and environmental conditions under which it grows. Formed growth rings represent integration of these variables during each growing season. More parameters other than ring-width are required to produce satisfactory reconstruction of past environmental changes. Stable isotope variations within the growth rings may provide other parameters. The variation of delta13C indices in the latewood alpha-cellulose is highly correlated with combined July and August environmental variables. Investigation of isotopic carbon composition in annual tree rings from Upper Silesia and ecologically clean Augustów Wilderness region were recently undertaken in the 14C Laboratory in Gliwice. In that time a series of radiocarbon concentration measurements in single tree rings and delta13C in the entire organic matter were carried out. Such evaluated values of delta 13C are used to correct radiocarbon concentration. However they cannot be used to reconstruct climatic and environmental conditions.

Słowa kluczowe

EN

delta 13C; alpha-cellulose; radiocarbon concentration

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2000
• Tom: Vol. 18
• Strony: 15--18
• Opis fizyczny: Bibliogr. 6 poz., rys. , tab.

Twórcy

autor

Pawełczyk S.

• Department of Radioisotopes, Institute of Physics, Silesian University of Technology, Krzywoustego2, PL-44-100 Gliwice, Poland

autor

Pazdur A.

• Department of Radioisotopes, Institute of Physics, Silesian University of Technology, Krzywoustego2, PL-44-100 Gliwice, Poland

Bibliografia

• 1. Francey R. J. and Ferquhar G. D., 1982: An explanation for the 13C/12C variations in tree rings. Nature 297: 28-31.
• 2. Kalin R. M., McCormac F. G., Damon P. E., Eastoe C. J. and Long A., 1995: Intercomparision of High-precision 14C Measurements at The University of Arizona and The Queen's University of Belfast Radiocarbon Laboratories. Radiocarbon 37(1): 33-38.
• 3. Loader N. J., Robertson I., Barker A. ., Switsur V. R. and Waterhause J. S., 1997: An improved technique for the batch processing of smali whole wood samples to a-cellulose. Chemical Geology 136: 313-317.
• 4. Loader N. J. and Switsur V. R., 1997: Reconstructing Past Environmental Change Using Stable Isotopes in Tree-rings. Botany Journal of Scotland 48 (1): 65-78.
• 5. Robertson I, Switsur V. R., Carter A. H. C., Barker A. C., Waterhouse J. S., Briffa K. R. and Jones P. D., 1997: Signal strength and clima te relationships in 13C/12C ratios of tree ring cellulose from oak in east England. Journals of Geophysical Research 102(D16): 19,507-19,516.
• 6. Robertson I. and Waterhause J. S., 1998: Trees of knowledge. Chemistry in Brilain: 27-30.