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Welcome to Xia’s Soil Systems Research Group!
The Soil Systems Lab at Columbia University
The Soil Systems Lab at Lamont-Doherty Earth Observatory (LDEO) aims to leverage process and empirical modeling tools with multi-scale data sources, including field and lab measurements, survey and literature data, and remote sensing imagery, to monitor soil fertility, greenhouse gas emissions, soil water and nutrient dynamics, and ecosystem productivity across various spatial and temporal scales. Our research team primarily focuses on evaluating and advancing natural climate solutions by investigating the influence of environmental drivers, land use changes, and management practices on soil health and the associated ecosystem service outcomes in terrestrial ecosystems. The overarching goal of our research group is to tackle challenges related to environmental sustainability, climate change, and food security.
Soil ecology/ Agroecology
Soil health/ Dynamic soil property assessment
Regenerative/ Conservation agricultural practices (e.g., cover cropping, organic farming, rotational cropping and grazing)
Rangeland management
Soil biogeochemistry
Nitrogen cycling
Soil fertility
Soil moisture/ Hydrological processes
Carbon management and carbon sequestration
Greenhouse gas emissions
Natural climate solutions (nature-based solutions)
Strategic sampling design
Research themes
Field sampling
Lab measurements
Process-based modeling/ Ecosystem modeling
Digital soil mapping
Applied spectroscopy
Remote sensing applications in agricultural and environmental research
Machine learning/ Artificial Intelligence
High-performance computing
Meta-analysis/ Data mining
Decision support tools
Environmental informatics
Stakeholder engagement