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For the first<br>
year, half of the position will<br>
involve management of the NSF Research Coordination Network<br>
(RCN) on Reactive<br>
Nitrogen in the Environment. The<br>
other half of the first year and up to two<br>
full additional years are to be dedicated to research on<br>
developing the Dual<br>
Arrhenius Michaelis-Menten (DAMM) model for soil carbon and<br>
nitrogen dynamics<br>
as part of a collaborative project with researchers from<br>
Harvard University,<br>
the USDA-FS, and the Woods Hole Research Center. The DAMM model<br>
will be integrated<br>
with the Forest Biomass, Assimilation, Allocation and<br>
Respiration (FöBAAR)<br>
model, using data from an on-going project at the<br>
Howland Forest of<br>
Maine, applying data-model fusion techniques. The model will also be<br>
modified to integrate<br>
CH4 and N2O uptake and efflux processes<br>
with<br>
decomposition and CO2 efflux simulations. The ultimate aim of the<br>
project is to improve<br>
understanding of and modeling capacity for interactions of<br>
belowground<br>
temperature, moisture, and substrate supply from aboveground<br>
processes as<br>
controllers of net soil emissions of CO2, CH4,<br>
and N2O.<br>
<br>
Qualifications: A Ph.D. in biogeochemistry, ecology, or a closely<br>
related field is<br>
required. The<br>
successful candidate will<br>
have a working<br>
knowledge of C and N<br>
cycling processes in terrestrial ecosystems. Experience with<br>
process-based quantitative<br>
modeling, statistical analysis of large data sets, and<br>
model-data fusion or<br>
data assimilation is required. Knowledge<br>
of<br>
at least one scientific programming language (ideally FORTRAN,<br>
MATLAB and/or<br>
R) is necessary, and experience using Bayesian approaches is<br>
desirable. Willingness<br>
to assist with team efforts at field work is expected. Good writing and<br>
communication skills are<br>
essential. <br>
<br>
For further information and instructions to<br>
apply: see the following:<br>
<br>
<a href="http://www.umces.edu/al/job/ead/pd-rcn" target="_blank">http://www.umces.edu/al/job/<u></u>ead/pd-rcn</a> [1]<br>
<br>
<br>
<br>
*Postdoctoral Researcher in Biogeochemistry of Amazonian<br>
Land-Use Change<br>
*<br>
<br>
The<br>
post-doc will work closely with the PI on<br>
a synthesis of studies regarding the effects of stoichiometric<br>
ratios of C:N:P on<br>
ecosystem productivity and land management sustainability across<br>
an array of<br>
forest (mature and secondary), pasture, and cropping systems in<br>
the Brazilian<br>
Amazon Basin. The<br>
objective of the<br>
project is to ask from a biogeochemical perspective, what are<br>
the key<br>
components of sustainable land management in a matrix of land<br>
covers? The possibility<br>
may exist for some additional<br>
field studies, depending on further funding.<br>
<br>
Qualifications: A Ph.D. in biogeochemistry, ecology, soil science, or<br>
a closely related<br>
field is required. The<br>
successful<br>
candidate will have a<br>
working<br>
knowledge of C, N, and P cycling processes in terrestrial<br>
ecosystems,<br>
preferably with some experience in land-use change in the<br>
tropics. Experience<br>
with process-based, quantitative<br>
modeling is desirable. Excellent<br>
writing<br>
and communication skills are essential. <br>
<br>
For further information and instructions to<br>
apply: see the following:<br>
<br>
<a href="http://www.umces.edu/al/job/ead/pd-aluc" target="_blank">http://www.umces.edu/al/job/<u></u>ead/pd-aluc</a> [2]<br>
<br>
<br>
<br>
Eric A. Davidson,<br>
Professor and Director (as of Jan 1, 2015)<br>
<br>
Appalachian Laboratory, University of Maryland Center for Environmental<br>
Science<br>
<br>
301 Braddock Road, Frostburg, MD 21532 USA<br>
301-689-720<br>
<br>
<a href="mailto:edavidson@al.umces.edu" target="_blank">edavidson@al.umces.edu</a> [3]<br>
<br></div>
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