Environmental Molecular Sciences Laboratory

A DOE Office of Science User Facility

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User Projects

The following is a list of projects that have been active over the past three years.
For a comprehensive list of projects, see All Projects. You can also search for released data.
Lead Institution: Lawrence Berkeley National Laboratory
Principal Investigator: Eoin Brodie
The pathways of carbon transport and loss through and from soils--soil organic matter (SOM) depolymerization to dissolved organic carbon and mineralization to carbon dioxide (CO2)--are fundamentally driven by microbial activity, which is strongly...
Lead Institution: Michigan Technological University
Principal Investigator: Lynn Mazzoleni
We propose an integrated experimental and modeling study of biomass burning aerosol rich in spherical particles - also known as "tar balls" - using the multi-modal micro-spectroscopy, advanced mass spectrometry, and high performance...
Lead Institution: University of Arizona
Principal Investigator: Malak Tfaily
Interactions at the plant-soil-microbe nexus are difficult to track given the complex networks of species and metabolites involved, in addition to the general challenges to studying heterogeneous and uncontrolled ecosystems. Here, we propose to...
Lead Institution: Syracuse University
Principal Investigator: Charles Driscoll
Browning of surface water has been observed across the northeastern United States and northern Europe. This trend has generally been attributed to increases in dissolved organic matter following the onset of recovery from acid deposition, but some...
Lead Institution: University of California, Merced
Principal Investigator: Asmeret Berhe
Soil organic phosphorus (P) has been identified as a pivotal component of bioavailable P, especially in late stages of ecosystem development. Organic P turnover rate is affected by the stabilization ability of the soil (i.e. organic matter, minerals...
Lead Institution: Cornell University
Principal Investigator: Carmen Martinez
We propose a series of experiments aimed at elucidating the mechanisms associated with the incorporation of nitrate (NO3-) into soil organic matter (SOM), with broad implications for the N biogeochemical cycle. Nitrate can be reduced to other N...
Lead Institution: Colorado State University
Principal Investigator: Michael Wilkins
Upland rivers host exceptionally strong linkages between the terrestrial and aquatic elemental cycles. Due to their abundance and tight connections with terrestrial ecosystems from which they receive dissolved organic carbon and other nutrients,...
Lead Institution: Pacific Northwest National Laboratory
Principal Investigator: Nicholas Ward
The availability of freshwater exerts a direct influence on the growth and health of plants both in terrestrial and aquatic ecosystems (e.g., wetlands). Upland soils can experience accumulation of salts during times of drought, while lowland systems...
Lead Institution: Pacific Northwest National Laboratory
Principal Investigator: James Stegen
Terrestrial-aquatic interfaces are widely recognized as active zones of organic matter metabolism, and hyporheic zones in particular are critical in determining the fate of organic matter globally. In particular, subsurface zones of groundwater-...
Lead Institution: Hebrew University of Jerusalem
Principal Investigator: Yeala Shaked
Essential metabolic functions within ecosystems are often partitioned among various members of microbial communities that each benefit the whole population. For example, nitrogen fixation is carried out by specific diazotrophic bacteria, while other...

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