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Will Atkinson & Jana Suriano PEI Summer Research 2016

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Presentation on theme: "Will Atkinson & Jana Suriano PEI Summer Research 2016"— Presentation transcript:

1 Will Atkinson & Jana Suriano PEI Summer Research 2016
The Role of Minerals on the Cycling and Stability of Organic Carbon in Soils Will Atkinson & Jana Suriano PEI Summer Research 2016

2 Myneni Group Department of Geosciences
Molecular Environmental Geochemistry Chemistry of natural organics Biogeochemistry of surfaces Ion solvation & aqueous chemistry

3 The environmental processes governing climate change
What happens to carbon in the terrestrial biosphere?

4 Soil organic matter (SOM) formation
debated

5 Importance of SOM NOT debated Lehmann 2015

6 The environmental processes governing climate change
What happens to SOM?

7 Organo-mineral interactions
What type of minerals? What kind of compounds? How do minerals AND om associate? How is OM stabilized in soil?

8 Three areas of inquiry:
NOM Model minerals In situ soil samples Lab adsorption experiments with OM, surface chemistry Ecosystems with different OM, soil minerals and climate Characteristics: DOM, POM, insoluble OM…

9 Model systems Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR FT-IR)

10 Further investigation
Infrared spectroscopy (ATR FTIR) Mass spectroscopy Nuclear magnetic resonance (NMR) spectroscopy X-ray absorption spectroscopy  Synchrotron light source …combine analytical techniques

11 DOM Sampling, June 2016

12 Analysis of Field Soil Samples

13 Partitioning Pine Barrens soil samples

14 Example IR spectra

15 Field Sites: Sierra Nevada Research Institute (CA) – 08/2016

16 Future Field Sites Tropical: Costa Rica or Panama Boreal: Alaska
Winter 2017? Costa Rica: Área de Conservación Guanacaste Panama: Smithsonian Tropical Research Institute More Fe- and Al-oxide rich Boreal: Alaska Summer 2017 Long Term Ecological Research (LTER) site More clay-rich www4.uwsp.edu

17 Acknowledgements Satish Myneni The Myneni lab group
Melissa Thaw (University of California-Merced) Princeton Environmental Institute Smith-Newton Family Scholars Program


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