Terrestrial Ecosystem Science

Recent Content

Projects

None Available

Recent Highlights

Microbial substrate affinity parameters are critical for modeling soil biogeochemistry dynamics, including CH4, oxygen, and dissolved organic carbon. Traditionally, modelers have relied on calibration for these parameters, which often leads to unresolvable equifinality. Here, LBNL scientists...
During El Niño events, atmospheric teleconnections with sea surface temperature (SST) anomalies in the equatorial Pacific cause higher temperatures and reduced rainfall in the Amazon, leading to increased CO2 emissions. While some of the temperature increase results directly from the SST-atmosphere...
This study examines the annual and seasonal trends of US runoff for the 1950-2010 period. We used multiple single-factor land surface model (LSM) simulations to conduct detailed detection and attribution (D&A) analysis to assess the causality of changes in US runoff. 
We derived equations that represent organismal maturation as a function of variable environmental conditions, such as variation in temperature that capture the effects of random variation but which do not require computationally expensive Monte Carlo simulations (replications of variable...
Most Earth system models used by the Intergovernmental Panel on Climate Change (IPCC) project increases in rainfall across tropical Asia, and neutral or drying trends across lowland South America. The cause of this asymmetric rainfall response is not well understood, and many previous researchers...

Recent Publications

Affinity parameters are essential for substrate kinetics‐based modeling of soil biogeochemistry. These parameters were originally defined for well‐mixed aqueous solutions to represent enzyme-substrate binding. For variably saturated soils, they are often calibrated and highly uncertain. Here we...
El Niño–Southern Oscillation (ENSO) is an important driver of climate and carbon cycle variability in the Amazon. Sea surface temperature (SST) anomalies in the equatorial Pacific drive teleconnections with temperature directly through changes in atmospheric circulation. These circulation changes...
Runoff in the United States is changing, and this study finds that the measured change is dependent on the geographic region and varies seasonally. Specifically, observed annual total runoff had an insignificant increasing trend in the US between 1950 and 2010, but this insignificance was due to...
Phenology models are becoming increasingly important tools to accurately predict how climate change will impact the life histories of organisms. We propose a class of integral projection phenology models derived from stochastic individual‐based models of insect development and demography. Our...
Understanding how anthropogenic CO2 emissions will influence future precipitation is critical for sustainably managing ecosystems, particularly for drought-sensitive tropical forests. Although tropical precipitation change remains uncertain, nearly all models from the Coupled Model Intercomparison...