Acid precipitation: compositional changes during throughfall; soil water. Technical completion report

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:5099619

Klein, R

Lysimeters were installed at two soil depths within each of the three major ecosystems on Camels Hump Mountain. Collections were made weekly during the frost-free season of 1982 and 1983. Samples were analyzed for pH, conductivity, and a broad range of metals, anionic and cationic constituents, and for other physical properties. The findings included: soil solutions obtained from the upper-elevations in a northern coniferous forest zone are significantly more acidic than those from the lower elevation hardwood forest zone; soil solutions for all ecological zones are more acidic in the spring during and shortly after snowmelt than they are later in the frost free-season; aluminum in soil solutions from the upper elevations is present in concentrations known to be phytotoxic to seedlings of forest trees and to groundcover plants; cadmium, Pb, and Zn are, in the spring, present in concentrations that are close to being phytotoxic; there are changes in the ratios of divalent cations to specific metals during the season and as functions of altitude and forest zones; nitrate concentration in soil water are also elevation- and time dependent.

• Research Organization: Wisconsin Univ., Madison (USA). Center for Limnology; Vermont Univ., Burlington (USA). Dept. of Botany
• OSTI ID: 5099619
• Report Number(s): PB-85-214534/XAB
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ATMOSPHERIC PRECIPITATIONS
ENVIRONMENTAL EXPOSURE PATHWAY
FORESTS
GROUND WATER
HYDROGEN COMPOUNDS
LAND POLLUTION
OXYGEN COMPOUNDS
POLLUTION
RAIN
SEASONAL VARIATIONS
SOILS
VARIATIONS
WATER