Journal ArticleDOI
Nutrient Supply and Primary Production in Clear Lake, Eastern Ontario
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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
Quantifying Landscape Nutrient Inputs With Spatially Explicit Nutrient Source Estimate Maps
Q. F. Hamlin,Anthony D. Kendall,S. L. Martin,H. D. Whitenack,H. D. Whitenack,J. A. Roush,B. A. Hannah,David W. Hyndman +7 more
Book ChapterDOI
Nitrogen as a growth factor in fresh water
TL;DR: N seems to be the more important growth limiting nutrient, at least in relation to phosphorus, in waters strongly eutrophicated by sewage from the modern community, and examples are presented showing N as a limiting nutrient in ultra-oligotrophic lakes.
Journal ArticleDOI
Limnological studies on some lakes in the Netherlands
TL;DR: Limnological features of Wijde Biik, one of the deepest and biggest in the Loosdrecht-lakes area, were studied during 1968–70 and chlorides have increased 2·5-fold in the 40 years as a geochemical consequence of deepening.
Journal ArticleDOI
Potential distribution of the viral haemorrhagic septicaemia virus in the Great Lakes region
TL;DR: VHSV is not at an ecological equilibrium and more areas could be affected, including areas not in close geographic proximity to past VHSV reports, according to the findings.
Journal ArticleDOI
Spectral transmittance of lake ice from 400-850 nm
TL;DR: Spectral transmittance signatures for a variety of freshwater ice types were collected in the 400-850 nm range as discussed by the authors, showing that clear ice showed the highest transmittances, snow-covered ice the lowest and other ice types intermediate transittances.
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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