2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/25/2021 | 2:00 PM - 3:30 PM | Re-examining connections between terrestrial and aquatic carbon cycling in boreal arctic systems | Virtual Platform

Re-examining connections between terrestrial and aquatic carbon cycling in boreal arctic systems

Lakes as a proportion of the landscape are greatest within the boreal and arctic regions. Their spatial extent is dynamic, increasing and decreasing within a season and shifting in location due to changes in the landscape. The current consensus is that lake ecosystems function as both ‘sentinels’ of altered climate and as ‘hots spots’ for the processing and remineralization of carbon received from terrestrial ecosystems. Predicting the impact of a changing north on lotic environments involves understanding the presence, persistence, and dynamics of surface and subsurface hydrology, as well as the impact of non-uniform change in climate. Using both chemical traces and remote sensing techniques, we present evidence that large regions of the boreal arctic do not show strong connections between terrestrial and lotic ecosystems in the context of carbon cycling. Using remote sensing, we suggest that the spatial variability of landscapes, precipitation and temperature require significant further investment in field-based research to accurately understand terrestrial-aquatic linkages in the context of atmospheric emissions.

Connectivity
Arctic Freshwater
Freshwater continuum

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Presenters/Authors

David Butman (), University of Washington, dbutman@uw.edu;