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NEW- Postdoctoral Position Available -- July 2, 2018

Postdoctoral Research Associate in Plant Ecophysiology / NB50676169

Purpose

A postdoctoral position is available in the Environmental Sciences Division and Climate Change Science Institute of Oak Ridge National Laboratory to investigate plant carbon physiology and water relations in context of climate change. You will join a multi-disciplinary team of investigators undertaking a broad, integrated field experimental study to assess and model the response of a northern peatland ecosystem to increases in temperature and exposures to elevated atmospheric CO2 concentrations.

Follow this link to official job posting: http://bit.ly/2NiVyKt

Qualifications Required

You will possess a Ph.D. with comprehensive experience in plant physiological ecology and one or more of the following disciplines: photosynthesis/respiration, plant water relations, biophysics, mechanistic modeling of plant physiological processes, or global change ecology. Prior experience with experimental field ecological research and associated laboratory approaches (including gas exchange and fluorescence, sap flow, respiration and stable isotopes) and an appreciation of data-model interactions is highly desirable. Your research will focus on one or more of the following: photosynthetic and respiratory acclimation to elevated CO2 and T, plant hydraulics, phenology, morphology and biochemistry; although focused self-directed research is expected. While woody plants dominate the shrub level and overstory at the site, herbs, grasses and non-vascular plants are also of interest and some work may be focused on these non-woody species. The position will require extensive self-directed fieldwork at the flagship ‘Spruce and Peatland Responses Under Climatic and Environmental Change’ (SPRUCE) experimental field site in northern Minnesota (http://mnspruce.ornl.gov/). Residency at ORNL in Tennessee or at the MN field site is a possibility. Ability to work as part of a team and be comfortable in a multi-disciplinary environment is critical. You will be a self-starter and have a proven record of research that resulted into high-quality peer-reviewed journal publications, and national and international presentations.

Additional Information:

SPRUCE Experiment: http://mnspruce.ornl.gov

Climate Change Science Institute: http://climatechangescience.ornl.gov/

Questions regarding the position can be directed to Jeff Warren, warrenjm@ornl.gov

SPRUCE Deep Peat Heating (DPH) to Whole Ecosystem Warming (WEW) Metagenomes for Peat Samples Collected June 2016

This data set provides links to the results of metagenomic analyses of 44 peat samples collected on 13 June 2016 from SPRUCE experiment treatment and ambient plots. Experimental plots had received approximately 24 months of belowground warming (deep peat heating (DPH), Hanson et al. 2015) with the last 9 of those months including air warming for implementation of whole ecosystems warming (WEW – Hanson et al. 2016). Data from these metagenomes are archived in the U.S. Department of Energy Joint Genome Institute (DOE JGI) Integrated Microbial Genomes (IMG) system. Link: https://img.jgi.doe.gov/cgi-bin/m/main.cgi. Quick Genome Search: June2016WEW.

SPRUCE Bog Surface Elevation Assessments with SET Instrument Beginning in 2013

This data set reports plot-specific bog surface elevation measurements collected with the SPRUCE Elevation Transect (SET) instrument. Measurements are reported as absolute elevation in meters above mean sea level for two locations in each of the SPRUCE experimental treatment plots and additional ambient boardwalk plots -- 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20 and 21.

This data set reports measurements collected from June 2013 through August 2017, but it will be appended annually as new data are collected.

SPRUCE Tree Growth Assessments of Picea and Larix in S1-Bog Plots and SPRUCE Experimental Plots beginning in 2011

This data set reports tree growth measurements of mature Picea mariana and Larix laricina located in the S1-Bog permanent plots and the SPRUCE experimental study plots.

Annual data collections were initiated in February of 2011and have been continued on an annual basis during mid-winter observation periods at the end of February or early March. Data collections are anticipated to continue through February of 2025 and this data set will be appended annually.

Initial observations in 2011 included measurements of circumference at 1.3 m (diameter at breast height assessments; DBH) above the nominal bog hollow surface, tree heights and crown diameters. Subsequent annual measurements have focused on the measures of circumference at DBH. Circumference measurements to the nearest 0.1 cm are converted to DBH in cm and basal area at DBH in (cm2). Tree height and crown diameter are measured to the nearest 0.1 m.

Note that the current data set is sequestered as project-only access pending publication of data in peer reviewed publications.