1 / 30

Lecture 11: Dendrochemistry & Isotopes

Lecture 11: Dendrochemistry & Isotopes. Dendrochemistry. Can be used to examine the chemical concentration in rings Air Pollution Groundwater Contamination Bioremediation. Problems With Dendrochemistry. Translocation Easy to Contaminate Have to sample and prepare in a clean environment

ssledge
Download Presentation

Lecture 11: Dendrochemistry & Isotopes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 11: Dendrochemistry & Isotopes

  2. Dendrochemistry • Can be used to examine the chemical concentration in rings • Air Pollution • Groundwater Contamination • Bioremediation

  3. Problems With Dendrochemistry • Translocation • Easy to Contaminate • Have to sample and prepare in a clean environment • Time Consuming • Can be Expensive

  4. Isotope Analysis • Used to study the isotopic concentration in rings • Determine water or carbon source • Examine tree source area

  5. Isotope Analysis

  6. Fractionation Example 18O/16O in Precipitation • Controls • Rain-out • Temperature • Amount • Source Area (Anderson et al. 2003 after Siegenthaler, 1979)

  7. Controls on the isotopic signature in plants • Oxygen • Precipitation • Temp. • humidity • transpiration • source water • Carbon • CO2 source • water stress • Temp. • humidity • transpiration • limitation (Anderson et al. 2003)

  8. Stomata - Picea abies (Anderson et al. 2003)

  9. Stomata guard cells - Picea abies (Anderson et al. 2003)

  10. Time series data - Vortex lat., Spring Avg. temp., and tree ring cellulose d18O (Anderson et al. 2003)

More Related