The Ecological Modeling and Integration Laboratory mainly focuses on land-atmosphere interaction in a framework of Earth system modeling.  The fundings are primary from DOE, CAS, and SDSU. The key research topics include

(1) Trace gas fluxes in terrestrial ecosystems, particularly methane and nitrous oxide

we use data-model integration approach to understand the production and consumption of trace gas (particularly methane and nitrous oxide) in terrestrial ecosystems and their environmental and biological controls.

(2) Microbial contribution to soil biogeochemistry

Soil microbes are the real driver of soil biogeochemistry; we closely collaborate with microbiologists and field scientists to understand how microbes contribute to soil biogeochemistry at various scales.

(3) Ecosystem and Earth system modeling (Community Earth System Model: CESM/CLM)

Numerical modeling approach is one important method in ecology and earth system sciences. However, models are still far behind of what we have learned in the field and in the laboratory. We work hard to distill the newly obtained knowledge into theoretical understanding and further translate those into ecosystem and Earth system models. We are working hard to improve the biogeochemistry component of CLM and apply it to global change problems.

 

The Improved Biogeochemical Framework within CESM/CLM

clm-microbe

The modeling framework of soil biogeochemical cycling in CLM4.5 (revised from Koven et al., 2013)

Ongoing projects

1)Data-model integration to understanding CH4 cycling in an Alaskan tundra ecosystem and a temperate peatland (sponsored by DOE)

2) Integrating CLM-Mircobe model with observational data from five eddy coveriance towers in Alaska to understand CH4 cycling during fall-winter transitional period (sponsored by NSF)

2)Modeling microbial processes at multiple scales (sponsored by SDSU and CAS)