Representativeness of biometric and flux tower data in landscapes for scaling carbon measurements

Kristofer Johnson, USDA Forest Service, kristoferdjohnson@fs.fed.us (Presenter)
Craig Wayson, USDA Forest Service, cwayson@fs.fed.us
Richard Birdsey, USDA Forest Service, rbirdsey@fs.fed.us
Kenneth Clark, USDA Forest Service, kennethclarkfs@gmail.com
John Hom, USDA Forest Service, jhom@fs.fed.us
Yude Pan, USDA Forest Service, ypan@fs.fed.us
Nicholas Skowronski, USDA Forest Service, nskowronski@fs.fed.us

In carbon cycle modeling, a well known gap exists between large-scale model outputs and small-scale measurements designed to capture carbon cycle processes. To help bridge this gap, a network of intensive measurement sites of intermediate sampling density and intensity were established in several locations. In order to be truly effective in providing information to parameterize and validate ecosystem models, however, there needs to be confidence that the area within the sites are representative of areas surrounding the site for a certain domain. In this study, our goal was to assess the representativeness of intensive measurement sites at Silas Little and Bartlett Experimental Forests to their surrounding areas. The carbon measurements of interest were Aboveground Biomass (AGB), Net Primary Production (NPP), and Net Ecosystem Exchange (NEE). Preliminary results will show how well intensive measurement sites represent soils, topography, landcover and LIDAR conditions and their cross distributions. In this way, one can identify areas where the processes are captured or not captured for different spatial scales and improve the reliability of measurement data utilized for modeling purposes.

Presentation Type:  Poster

Session:  Global Change Impact & Vulnerability   (Tue 11:30 AM)

Associated Project(s): 

• Related Activity

Poster Location ID: 219