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Characterization of Soil Respiration following Forest Disturbance

Project Abstract: 
The carbon balance of ecosystems is determined as production minus respiration and soil respiration makes up the largest fraction of ecosystem respiration. Yet studying soil respiration is complicated by difficulties measuring accurate spatial and temporal variability. To address this knowledge-gap I will collect and interpret data on soil respiration (measured by soil CO2 efflux) to determine the amount and timing of soil respiration. This work will feature as part of an ongoing interdisciplinary project, Forest Accelerated Succession ExperimenT (FASET), to investigate the effects of disturbance in a forest ecosystem. New sensor technology allows continuous quantitative monitoring of numerous biophysical variables; in collaboration with hydrologists, environmental engineers, and ecophysiologists I hope to elucidate some of the patterns in soil respiration across time and space. I will integrate these data into ecosystem biogeochemistry and carbon accounting models and attempt to identify correlations with other biophysical variables such as temperature, humidity, phenology, sap flux, and micrometeorology. By collaborating with scientists from various disciplines I hope to develop skills to work in a wide range of environmental fields.
Investigators: 
Status of Research Project: 
Years Active: 
2010
Methods: 
Maintain automated soil CO2 efflux measurement sensors at Ameriflux and FASET sites.