The objective of this research is to understand and anticipate the ecosystem changes that will result from altered environmental conditions and to understand the sensitivity of key ecosystem processes and components to different levels of stress. Ecosystems Dynamics research employs a variety of techniques and methodologies that are dependent on the scale of inquiry. Controlled experiments provide data on genetic resilience to stress and adaptability of individual plants to changing environments. To understand ecosystem processes, long-term investigations of hydrology, soils, and forest communities are conducted in experimental forests and watersheds maintained by the Forest Service and cooperators. Additional extensive observations are made along environmental gradients and across ecotones.
Paleoecology is used as an historical base for forest health and productivity.
Sensitivity of the mechanisms of nutrient cycling by microbes and small soil animals to global change is also studied. At the regional scale, ecosystem models and resource production models are used to synthesize and extrapolate the results of experimental and observational research. Such models help us understand and predict how ecosystem productivity and vegetation distribution may respond to global change.