Back to Search
Start Over
Reduced climate sensitivity of carbon, oxygen and hydrogen stable isotope ratios in tree-ring cellulose of silver fir (Abies alba Mill.) influenced by background SO2 in Franconia (Germany, Central Europe)
- Source :
- Environmental pollution (Barking, Essex : 1987). 185
- Publication Year :
- 2013
-
Abstract
- The climate sensitivity of carbon (δ(13)C), oxygen (δ(18)O) and hydrogen (δ(2)H) isotope signatures in tree-ring cellulose of Abies alba Mill. from a marginally industrialized area of Franconia (Germany) was analysed for the last 130 years. All isotopes preserve climatic signals up to c. 1950 AD. After 1950 we observe a clear reduction in climate sensitivity of δ(13)C and δ(2)H while δ(18)O - climate relations remain well pronounced. Nevertheless statistical tests implied that SO2 background emissions of West Germany had influenced isotope signatures long before 1950. The relationships between isotope values and concentrations of SO2, dust, O3 and NO2 at the regional level during the period 1979-2006 indicate that δ(13)C and δ(18)O were influenced primarily by SO2. The impact of SO2 on δ(2)H was negligible, but the observed reduction of climate sensitivity may be caused by synergic influences. The results have significant implications if isotope signatures from tree-rings from anthropogenic influenced regions are used to reconstruct past climate.
- Subjects :
- δ18O
Health, Toxicology and Mutagenesis
Climate
chemistry.chemical_element
Toxicology
Atmospheric sciences
Air Pollution
Germany
Dendrochronology
Sulfur Dioxide
Cellulose
Air Pollutants
δ13C
biology
Isotope
Stable isotope ratio
Ecology
General Medicine
biology.organism_classification
Pollution
Wood
Carbon
Abies alba
Oxygen
chemistry
Climate sensitivity
Environmental science
Abies
Hydrogen
Subjects
Details
- ISSN :
- 18736424
- Volume :
- 185
- Database :
- OpenAIRE
- Journal :
- Environmental pollution (Barking, Essex : 1987)
- Accession number :
- edsair.doi.dedup.....4bc676661b211d40db4eef55d0febcd8