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Geospatial Forum with Dr. Diego Riveros-Iregui (UNC Chapel Hill)

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September 2 @ 3:30 pm - 4:30 pm

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Dr. Diego Riveros-Iregui
Bowman and Gordon Gray Distinguished Professor in the Department of Geography, UNC-Chapel Hill; hosted by Dr. Katie Martin


Presentation Title
Carbon Fluxes across Terrestrial and Aquatic Environments in a Tropical Alpine Watershed


Abstract

A rapidly growing body of work suggests mountain streams emit surprisingly large amounts of carbon dioxide to the atmosphere. Studies in these environments are scarce and estimates of CO2 fluxes from aquatic environments are poorly constrained. High-altitude tropical grasslands, known as “páramos,” are characterized by high solar radiation, high precipitation, and low temperature. They also exhibit some of the highest ecosystem carbon stocks per unit area on Earth. In this forum presentation I summarize findings of surface CO2 fluxes from adjacent aquatic and terrestrial environments based on a suite of field observations. I address the role of hydrology in regulating the magnitude and fate of dissolved carbon in streams and examine the inherent spatial and temporal variability of these fluxes. These findings contribute toward our understanding ecosystem carbon cycling in high-altitude, tropical, headwater catchments.

Bio

Diego Riveros-Iregui is the Bowman and Gordon Gray Distinguished Professor in the Department of Geography at UNC-Chapel Hill. He received a B.S. in geosciences from the Universidad Nacional de Colombia (1999), a M.S. in geology from the University of Minnesota (2004), and a Ph.D. in ecology and environmental sciences from Montana State University (2008). He was a post-doctoral fellow at the University of Colorado Boulder (2008-2010) and an assistant professor at the University of Nebraska (2010-2013) before relocating to UNC (2013-present). His research interests include watershed science, forest and soil processes, ecosystem ecology, and human-environment interactions. Currently, his field studies include rural and urban watersheds of the North Carolina Piedmont, high-altitude wetlands in the Andes Mountains, and human-impacted highlands of the Galapagos Islands. He is recipient of the J. Carlyle Sitterson Award for Teaching First-Year Students, and the National Science Foundation Faculty Early Career Development (CAREER) Award.

Video

Details


Date
September 2
Time
3:30 pm - 4:30 pm
Event Category:
Website
go.ncsu.edu/geospatial-forum-live
Organizers
Center for Geospatial Analytics
Department of Forestry and Environmental Resources