Date

Session Announcement and Call for Papers
Air to Land to Ocean: Biogeochemical and Hydrological Fluxes in Northern
Watersheds
American Geophysical Union (AGU) Fall Meeting
10-14 December 2007
San Francisco, California

Abstract Submission Deadline: 6 September 2007

For further information, please go to:
http://www.agu.org/meetings/fm07/?content=search&show=detail&sessid=284


Papers are invited for Session B20: "Air to Land to Ocean:
Biogeochemical and Hydrological Fluxes in Northern Watersheds" being
convened at the American Geophysical Union (AGU) Fall Meeting on 10-14
December 2007 in San Francisco, California.

Session Description:
The world's northern watersheds are its most important terrestrial
carbon store. Their peatlands, occupying only about 3% of global land
area, contain 20-30% of the global terrestrial carbon, more carbon than
is held in the entire atmosphere. Over the Holocene these peatlands have
accumulated carbon at an average rate of ~1Mt C/yr, making this
ecosystem not only a substantial store but also a large potential sink
of atmospheric carbon and large source to northern continental margins.
However, this environment is under special pressure as the Earth warms
and as humans utilize more marginal land. Therefore, it is vital to
understand the present state of arctic and subarctic watersheds, the
future of these regions given the range of climatic and management
pressures, and what could be done to preserve and enhance its carbon
storage. This session will bring together scientists working on all
aspects of biogeochemistry and hydrology in arctic and subarctic zones
including atmosphere/land interactions and river export to the oceans
and those working on all its carbon and nutrient uptake and release
pathways in order to better understand the present state and prognosis
of this region.

Conveners:
Fred Worrall
University of Durham
E-mail: Fred.Worrall [at] durham.ac.uk

Robert Max Holmes
Woods Hole Research Center
E-mail: rmholmes [at] whrc.org

Kimberley Wickland
U.S. Geological Survey
E-mail: kpwick [at] usgs.gov

Rob Striegl
U.S. Geological Survey
E-mail: rstriegl [at] usgs.gov

Further information and abstract submission procedures are available at:
http://www.agu.org/meetings/fm07/