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Exploration of the relationships among acidic deposition, land use, and water chemistry

Conference ·
OSTI ID:5888386
; ;
Many watershed characteristics, either by themselves or in combination with acidic deposition, have been shown to influence the acidification of lakes. Correlations and linear regressions were calculated for pairs of watershed characteristics and water chemistry measurements to statistically test, using observational data, these relationships. The study included a subset of 46 headwater lakes in the Adirondack Mountain region of New York State that were common to both the National Surface Water Survey (providing water chemistry data) and the Adirondack Watershed Data Base (providing watershed attribute data). Wet deposition and lake elevation showed strong, negative relationships with both lake pH and alkalinity, although elevation may act as a surrogate variable for other factors, such as soil type, vegetation type,and deposition level. Conifer vegetation, historical fire activity, and wetlands, expressed as the percentage of watershed area, also showed significant, negative relationships with lake pH and alkalinity. Thus, several hypotheses concerning the association of watershed attributes with lake acidification are supported and should be given further consideration in research planning, field surveys, and assessment activities.
Research Organization:
Environmental Protection Agency, Washington, DC (USA); Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5888386
Report Number(s):
CONF-8511179-1; ON: DE86008885
Country of Publication:
United States
Language:
English

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Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID NEUTRALIZING CAPACITY
ACID RAIN
ADIRONDACK MOUNTAINS
APPALACHIAN MOUNTAINS
ATMOSPHERIC PRECIPITATIONS
CHEMISTRY
DEPOSITION
FEDERAL REGION II
LAND USE
MOUNTAINS
NAPAP
NEW YORK
NORTH AMERICA
PH VALUE
RAIN
RESPONSE MODIFYING FACTORS
USA
WATER CHEMISTRY
WATERSHEDS