The Relative Importance of Nitrogen and Carbon for Tree     Growth at the Subarctic Elevational Tree Line
{'Code': '08010208', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
{'SignBlockName': 'Althea Ball', 'PO_EMAI': 'aball@nsf.gov', 'PO_PHON': '7032920000'}
The >>ecotone between trees and the tundra in northern                  latitudes and with altitude in all areas of the world is a place                where average temperature increases have been detected already.                 This increase in temperature is said to be caused by increased                  CO..2 in the global atmosphere.  Whatever its cause, the effect                 will be to alter plant growth and distribution at the tree line                 ecotone.  This study will investigate possible causes for limited               tree growth at the tree line and thus provide fundamental data                  against which we may assess shifts in vegetation and the tree                   line as global CO.2 increases.  Climatic change may best be                     detected at this cold dominated sensitive ecotone.                                      The investigator, Dr. B. Sveinbjornsson, is an expert in                northern latitude ecology, and his institution, University of                   Alaska, Anchorage, is well situated and equipped to support the                 work.
{'FirstName': 'Bjartmar', 'LastName': 'Sveinbjornsson', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Bjartmar Sveinbjornsson', 'EmailAddress': 'bsveinbjornsson@uaa.alaska.edu', 'NSF_ID': '000473344', 'StartDate': '07/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Alaska Anchorage Campus', 'CityName': 'ANCHORAGE', 'ZipCode': '995084614', 'PhoneNumber': '9077861777', 'StreetAddress': '3211 PROVIDENCE DR', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Alaska', 'StateCode': 'AK', 'CONGRESSDISTRICT': '00', 'CONGRESS_DISTRICT_ORG': 'AK00', 'ORG_UEI_NUM': 'DZFJT2KH9C43', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ALASKA ANCHORAGE', 'ORG_PRNT_UEI_NUM': 'KNP1HA2B9BF8'}
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{'Code': '1128', 'Text': 'Population & Community Ecology'}
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