Qian Zhao

Development of Atmospheric Pressure Environmental (APE) Chamber for Chemical Imaging of Aerosol, Plant, and Soil Samples

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zezhen Cheng

Maintaining low-pressure (∼2×10−6-10 Torr) inside the Environmental Scanning Electron Microscope (ESEM) chamber is the major challenge in pressure- and/or relative humidity (RH)-sensitive sample (e.g…

Improve predictive understanding of soil carbon cycling by characterizing composition, distribution, and persistence of soil organic matter using 3-D nanoscale mass spectrometric imaging and machine learning

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Zihua Zhu

Machine learning (ML) methods will be used to quantitatively determine relationships between soil organic matter (SOM) composition, mass fraction and reactivity and SOM-mineral interactions…

Mineralogy exerts control on organic molecules zonal structuring and reordering

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Odeta Qafoku

Organic C preservation in soil environments is predominantly driven by organic matter: soil mineral interactions. Yet, mechanistic uncertainties remain, namely how spatial variation in mineralogy…

Bonding strength of plant and microbial precursors to mineral-associated soil organic matter

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Sarah Leichty

Soil organic matter (SOM) provides ecosystem services such as soil fertility and climate mitigation, holding the key to agricultural sustainability in a rapidly changing world. Despite the important…

Soil-like habitats for spatial analysis of microbe-mineral interactions

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Arunima Bhattacharjee

The objective of this study is to develop mineral microfluidics compatible with a suite of optical and chemical imaging capabilities at EMSL, as well as SSRL, for probing microbially relevant…

Integrating mineral-associated organic matter (MAOM) colloid characteristics into dissolved organic matter (DOM) representation in Earth system models

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Ravi Kukkadapu

We propose developing a workflow to generate colloids from operationally defined DOM solutions using aerosol-based techniques, then develop a spectroscopic/microscopic capability pipeline to…

1000 Soils Research Campaign

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

MONet

To more fully understand the cycling of carbon, carbon-based nutrients and key elements from the molecular to basin scale across variations in soil chemistry, the Environmental Molecular Sciences…

Building an automation-ready multimodal workflow for comprehensive 3D characterization of intact soil structures.

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Odeta Qafoku

3-dimensional (3D) characterization of intact soil structures (i.e. macro and microaggregates) will provide understandings on how soil physical, mineralogical, biotic heterogeneities control long…

Advancing ecosystem understanding of carbon turnover and storage through molecular characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

The coupling between concurrently changing carbon (C) and nitrogen (N) cycles remains a key uncertainty in understanding feedbacks between the terrestrial C cycle and climate change. Decades of…

The Influence of Crop Selection and Soil Properties on the Accumulation and Stabilization of Microbial Residues in Soil

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

The proposed research confronts the emerging paradigm that dead microbial cells, or necromass, are a major source of organic carbon in soil. Microbial necromass accumulation may vary between annual…

Advancing ecosystem understanding of carbon turnover and storage through molecular characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

EMSL Staff Proposal: The coupling between concurrently changing carbon (C) and nitrogen (N) cycles remains a key uncertainty in understanding feedbacks between the terrestrial C cycle and climate…

The Influence of Crop Selection and Soil Properties on the Accumulation and Stabilization of Microbial Residues in Soil

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

EMSL Staff Proposal: The proposed research confronts the emerging paradigm that dead microbial cells, or necromass, are a major source of organic carbon in soil. Microbial necromass accumulation may…

The Influence of Crop Selection and Soil Properties on the Accumulation and Stabilization of Microbial Residues in Soil

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

EMSL Staff Proposal: The proposed research confronts the emerging paradigm that dead microbial cells, or necromass, are a major source of organic carbon in soil. Microbial necromass accumulation may…

Elucidating unifying principles of soil C-N coupling using a continental scale grassland experimental network

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

EMSL capabilities will be utilized for analysis of samples acquired from a continental-scale network of replicated, long-term grassland nutrient addition experiments, the Nutrient Network, to enhance…

Software Development for High-Resolution Mass Spectrometry Analysis of Small Molecules: Enabling High-Throughput, Reproducible Data Processing and Annotation.

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Yuri Eberlim de Corilo

Modern high-resolution mass spectrometry has dramatically increased the volume (distinct analytical techniques and polarity modes) and quality (higher resolving power, dynamic range, mass error…

Projects