[ES_JOBS_NET] 2 year Postdoc – Isotope biogeochemistry in boreal peatlands

We are seeking a highly motivated candidate for a postdoctoral position
aimed at enhancing our understanding of the relative importance of methane
oxidation in boreal peatlands. The main goal of this project is to use stable
isotopes at natural abundance levels to partition heterotrophic respiration
into CO2 being derived from soil organic matter mineralization by
saprotrophic microbes and methane oxidation by methanotrophic bacteria across
multiple temporal and spatial scales. The successful candidate will have access
to an already established, well instrumented boreal peatland (Degerö Stormyr; https://www.slu.se/en/; https://www.slu.se/en/). The project will also take advantage of an already
established experimental setup of automated chambers for measuring different components
of net ecosystem exchange (NEE) and make continuous measurements of δ13C
using a cavity-ring down spectroscopy (Picarro 2101-i Analyzer) to quantify the
relative importance of methane oxidation in a boreal peatland.


The position is with the Faculty
of Forest Sciences
at the Swedish University of Agricultural Sciences
(SLU), Department of Forest Ecology
& Management, in Umeå,
Sweden. Our mission at the Department is to advance our understanding of forest ecosystem processes and to assist
in developing sustainable forest management practices. The major research focus
is on the boreal
landscape, including peatlands, forests and surface
waters, but we also have activities in other biomes.
The department has modern technical
facilities, close collaboration with several state-of-the-art technical platforms at Umeå University and SLU, and is in close proximity
to unique long-term ecosystem experiments and other field sites. For more information, visit the Department’s
webpage: http://www.slu.se/en/. Thus, the successful candidate will have access to state-of-the-art
instrumentation and will be a member of a larger, vibrant working group that
offers ample possibilities for scientific interactions and career development.


Duties: 1) Install, further
develop/adapt and be responsible for the maintenance
of the Picarro G2101-i analyzer for field 13CO2 and 13CH4
measurements; 2) Process and analyze
data; 3) Publish
findings in relevant
high-rank scientific journals. The overall aim of
this project is to accurately quantify the important role
methanotrophic bacteria play in CO2 fluxes in a northern boreal
peatland; thereby providing a more mechanistic understanding of how these
ecosystem may respond to projected climate change.


Qualifications: We are seeking a highly motivated individual
with good communication skills in English, both orally and written, a strong
work ethic, a team player that works well in a strong research environment. We
are searching for a person with a PhD in environmental sciences, biogeochemistry or related fields. The successful candidate must also have: 1)
Demonstrated experience with natural
abundance stable isotopes, including the use of mixing models and keeling plots
to determine the source δ13C signature of respired CO2;
2) Demonstrated experience with  chamber based measurements
of greenhouse gas fluxes and knowledge of cavity-ring down spectroscopy.
Demonstrate knowledge of peatland biogeochemistry will be considered an
important merit as will advanced skills in handling and processing large, high-frequency and multiple-source data sets using Matlab or similar software.
The candidate must be able to independently conduct field work (which requires a valid driver’s license).



Contact and application

Persons interested in this position should send
a statement of interest outlining relevant research qualifications (max two
pages), a CV, up to three relevant publications and contact information for
three references. Application should be sent to Niles Hasselquist (niles.hasselquist@slu.se). For additional information
about his position please contact Niles Hasselquist (niles.hasselquist@slu.se) or Mats Nilsson (mat.b.nilsson@slu.se).


Review of interested candidates will start
September 20, and continue until a suitable candidate has been identified. The
position start date is somewhat flexible but is anticipated to start mid
winter, i.e. December-January. The position is for two years and is funded
by a Kempe scholarship.

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