FY 05/06 | FY 04/05 | FY 03/04 | SPRING 2003 | FALL 2002 | SPRING 2002
ASSESSING CARBON SINKS AND OTHER BIOGEOCHEMICAL CHANGES WITH PLANTATIONS: A GLOBAL SYNTHESIS
Carbon sequestration programs have gained considerable attention as a mechanism to offset human-induced greenhouse gas emissions and reduce atmospheric carbon dioxide concentrations. The most prevalent type of carbon sequestration program in use at present, and likely to be used in the near future, is tree planting, especially afforestation (the creation of plantations in areas that had not previously supported trees such as grasslands and croplands) and reforestation (the creation of plantations in areas that had previously supported trees). Much attention has been paid to estimating the net amount of carbon sequestered in vegetation and soils over specific periods of time as a result of tree planting, and to estimating the financial costs of tree planting programs, but little consideration has been given to the non-carbon biogeochemical changes that result from these programs.
The plantations working group will:
The group will examine four regions (the United States, South America, Australia, and China), with a goal to recommend optimal sequestration measures based on a full consideration of both biogeochemical and economic factors.
The group is composed of individuals from a number of disciplines (forest ecology, biology, biogeochemistry, hydrology, geography, and economics) and a number of institutions:
Robert B. Jackson, William H. Schlesinger and Kathleen
Farley (Duke University)
Jobbágy EG, RB Jackson. 2007. Groundwater and soil chemical changes under phreatophytic tree plantations. Journal of Geophysical Research Biogeosciences, 112, G02013, doi:10.1029/2006JG000246.
Jackson, RB, EG Jobbágy, R Avissar, S Baidya Roy, D Barrett, CW Cook, KA Farley, DC le Maitre, BA McCarl, BC Murray. 2005. Trading water for carbon with biological carbon sequestration. Science 310: 1944-1947.
Farley K.A., E.G. Jobbágy, and R.B. Jackson, 2005, Effects of afforestation on water yield: a global synthesis with implications for policy, Global Change Biology, 11(10), 1565-1576.
Jobbágy E.G., and R.B. Jackson, 2004, Groundwater use and salinization with grassland afforestation, Global Change Biology,10(8), 1299-1312.
Jackson R.B., and W.H. Schlesinger, 2004, Curbing the U.S. carbon deficit, Proceedings of the National Academy of Sciences USA, 101 (45), 15827-15929.