Journal ArticleDOI
Nutrient Supply and Primary Production in Clear Lake, Eastern Ontario
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TLDR
Clear Lake, a small Canadian Shield lake that has been influenced little by human activity, was found to be more productive than expected from chemical and optical properties and geological surroundings, although most of the sodium, potassium, and silica entering the lake is weathered from the terrestrial watershed.Abstract:
Clear Lake, a small Canadian Shield lake that has been influenced little by human activity, was found to be more productive than expected from chemical and optical properties and geological surroun...read more
Citations
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Journal ArticleDOI
General patterns in the seasonal development of chlorophyll a for temperate lakes
TL;DR: The seasonal cycle of phytoplankton biomass in temperate lakes is often represented as spring and fall blooms with intervening biomass minima, but the generality of this pattern has never been critically evaluated.
Journal ArticleDOI
Effects of Acidic Precipitation on Precambrian Freshwaters in Southern Ontario
TL;DR: The pH of some lakes is 5.0-5.5, a level at which the reproductive success of certain fish species is impaired as mentioned in this paper, indicating that the pH of these lakes is low or lower than that of precipitation in areas of the world with recognized problems of acidification.
Journal ArticleDOI
The Impact of Forest Fire on the Nutrient Influxes to Small Lakes in Northeastern Minnesota
TL;DR: The results of this study indicate that nutrient losses after the Little Sioux fire were minimal, perhaps because it was a spring fire, and it did not represent a major impact on Meander Lake.
Journal ArticleDOI
Nitrogen, Phosphorus, and Organic Carbon Cycling in an Arctic Lake
TL;DR: Budgets for nitrogen, phosphorus, and organic carbon in Toolik Lake, Alaska, were assembled from data collected during 1977-81 as discussed by the authors, and the annual total organic carbon (TOC), total nitrogen (TN), and total...
Journal ArticleDOI
Loss of fish populations from unexploited remote lakes in Ontario, Canada as a consequence of atmospheric fallout of acid
TL;DR: In this article, it was shown that the emissions from the nickel smelters near Sudbury were the most probable source of contamination that has resulted in the loss of fish stocks from O.S.A., Muriel, and other lakes.
References
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Journal ArticleDOI
A Working Model for the Variation in Stream Water Chemistry at the Hubbard Brook Experimental Forest, New Hampshire
TL;DR: In this article, the authors show that during the summer, biologic activity measurably reduces the concentration of nitrate and potassium in stream water, while hydrogen ion, aluminum, and nitrate concentrations are increased.
Journal ArticleDOI
Nutrient Loss Accelerated by Clear-Cutting of a Forest Ecosystem
TL;DR: The forest of a small watershed-ecosystem was cut in order to determine the effects of removal of vegetation on nutrient cycles, and the cut ecosystem exhibited accelerated loss of nutrients.
Journal ArticleDOI
Nitrification: importance to nutrient losses from a cutover forested ecosystem.
TL;DR: The nitrate concentration (weighted average) in stream water from an experimentally deforested watershed increased from 0.9 milligram per liter before removal of the vegetation to 53 milligrams per liter 2 years later.
Journal ArticleDOI
Rate of chemical weathering of silicate minerals in New Hampshire
TL;DR: In this article, the losses of dissolved Ca, Na, Mg and K have been determined for six small watersheds in New Hampshire during the period 1963-1967, from the rate at which Ca and Na are lost, the steady-state chemical weathering rate is calculated at 800 kg of bedrock-till per hectare per year.
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