Diversity and Function Within Soil Microbial Communities
The microbial communities within the loose, friable aggregations of organic and mineral components in soil are highly organized spatially, shaped in part by the structure of the soil itself.
A New Role for Microbes in Peatland Nitrogen Supply
Nitrogen is a critical nutrient regulating productivity in many ecosystems and influences nutrient availability by affecting organic matter decomposition rates.
Effects of Water Flow Variation in Large Rivers Exacerbated by Drought
Biogeochemical activity in the hyporheic zone (HZ), sediments where the flowing waters of a river mix with shallow groundwater, supports many of the biological processes that occur within a watershed.
Gaps Identified to Improve Accuracy of CO2 Fluxes Measured By Eddy Covariance Systems
Turbulent vertical fluxes of heat, water vapor, and carbon dioxide (CO2) occur constantly between land surfaces and the atmosphere.
Key to Understanding How Watersheds Function Lies in the Sediment
Co-authors of a paper in Hydrological Processes led by PNNL researchers Zhangshuan Hou, Timothy Scheibe, and Christopher Murray, produced a map that identifies different classes of sediments which compose the riverbed along the Hanford ...
Nutrient-Hungry Peatland Microbes Reduce Carbon Loss Under Warmer Conditions
Enzyme production in peatlands reduces carbon lost to respiration under future high temperatures.
Fire Increases Ecosystem Vulnerability to Future Disturbance Events
A new study examines how back how back-to-back extreme events can affect a forest landscape.
New Nanotube Drug Delivery Shows Promise
A new drug delivery method designed by researchers at PNNL and Washington State University (WSU) has shown it can target and kill lung cancer cells.
New Approach to Assess Uncertainty in Predictions from Reactive Transport Models
A multi-institutional team of scientists developed a new sensitivity analysis framework using Bayesian Networks to quantify which parameters and processes in complex multi-physics models are least understood.
Multi-omics Data are Key to Advancing Reactive Transport Models
Reactive transport models (RTMs) are used to describe and predict the distribution of chemicals in time and space, in both marine and terrestrial (surface and near-surface) environments where microbially-mediated processes govern...