2006 BES Annual Meeting Presentation and Poster Abstracts
Residential Carbon: Stocks and fluxes in residential ecosystems
Co-Authors: Peter Groffman, Mary Cadenasso, Mary Cox, J. Morgan Grove, Steward Pickett, Rich Pouyat
Abstract: Conversion of land to residential use is an important contributor to regional ecosystem dynamics such as carbon cycling and sequestration. In the Residential Carbon project, we are quantifying C stocks and fluxes, and the factors that drive them, in residential parcels within the Baltimore Ecosystem Study (BES). We are testing the relative influences of human and biophysical drivers of above- and below-ground C cycling in these residential systems: in particular, our 40 residential parcels are chosen to provide contrasts in urban ecosystem structure, soil functional properties, historical land use, and current land management practices. In a companion study along a chronosequence of suburban lawns in South Burlington, VT, we have found that in residential parcels, turfgrass productivity is determined by lawn management practices rather than by housing age. However, soil C and N stocks do appear to be driven strongly by housing age, especially in the very early stages of lawn development. These results suggest that the relative strengths of the human and biophysical drivers of C cycling in residential systems are different for each specific component of the C cycle.