NSF Org:	DEB Division Of Environmental Biology
Recipient:	CORNELL UNIVERSITY
Initial Amendment Date:	January 4, 1999
Latest Amendment Date:	June 24, 2004
Award Number:	9810221
Award Instrument:	Continuing Grant
Program Manager:	Henry L. Gholz DEB  Division Of Environmental Biology BIO  Directorate for Biological Sciences
Start Date:	December 1, 1998
End Date:	November 30, 2005 (Estimated)
Total Intended Award Amount:	$4,200,000.00
Total Awarded Amount to Date:	$4,842,892.00
Funds Obligated to Date:	FY 1999 = $1,028,453.00 FY 2000 = $750,000.00 FY 2001 = $730,000.00 FY 2002 = $752,000.00 FY 2003 = $756,328.00 FY 2004 = $826,111.00
History of Investigator:	Timothy Fahey (Principal Investigator) tjf5@cornell.edu Charles Driscoll (Co-Principal Investigator)
Recipient Sponsored Research Office:	Cornell Univ - State: AWDS MADE PRIOR MAY 2010 341 PINE TREE RD ITHACA NY  US  14850-2820 (607)255-5014
Sponsor Congressional District:	19
Primary Place of Performance:	Cornell Univ - State: AWDS MADE PRIOR MAY 2010 341 PINE TREE RD ITHACA NY  US  14850-2820
Primary Place of Performance Congressional District:	19
Unique Entity Identifier (UEI):	G56PUALJ3KT5
Parent UEI:
NSF Program(s):	Population & Community Ecology, LONG TERM ECOLOGICAL RESEARCH, BIOLOGICAL RESEARCH COLLECTION, CONNECTIONS, ENVIR SOCIAL & BEHAVIOR SCIENC, JAPAN AND KOREA PROGRAM, Catalyzing New Intl Collab, Ecosystem Science
Primary Program Source:	app-0100  01000102DB NSF RESEARCH & RELATED ACTIVIT app-0102  app-0103  app-0104  app-0198  app-0199
Program Reference Code(s):	1195, 5942, 5978, 9169, 9177, 9178, 9251, 9278, EGCH, SMET
Program Element Code(s):	112800, 119500, 119700, 192200, 520900, 598300, 729900, 738100
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.074

ABSTRACT

9810221
Fahey
This project will continue the Long-term Ecological Research (LTER) at the Hubbard Brook Experimental Forest in an effort to improve general understanding of the mutual influences of environment, disturbance, biological activity and the flows of energy and materials in forest landscapes. This integrated program of long-term monitoring and process-level studies at Hubbard Brook and other regional sites address a series of hypotheses in two thematic categories: biogeochemistry and vegetation dynamics. The biogeochemical studies focus on the cycles of carbon, nitrogen, calcium, and sulfur and build especially upon a 30+ year record of fluxes from the Hubbard Brook Experimental watersheds to address several striking and surprising observations about element cycling in northeastern forests. In addition, investigations of vegetation and primary productivity at the landscape scale will be expanded, focusing upon the interactions between tree spatial distributions, soil and glacial till properties, and nitrogen cycling and nutrition. This research will be synthesized and integrated using simulation models and in the form of monographic overviews of elemental cycles.

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