Journal ArticleDOI
Rate of chemical weathering of silicate minerals in New Hampshire
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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.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1968-05-01. It has received 165 citations till now. The article focuses on the topics: Pedogenesis & Weathering.read more
Citations
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Journal ArticleDOI
Energy Flow in Bear Brook, New Hampshire: An Integrative Approach to Stream Ecosystem Metabolism
Stuart G. Fisher,Gene E. Likens +1 more
TL;DR: In this paper, an energy budget for a small undisturbed second-order stream in northeastern United States is presented, in which all input and output fluxes of potential energy as organic matter are considered, and a conceptual scheme is presented by which import, export, photosynthesis and respiration may be used to describe the functional dynamics and developmental processes of ecosystems.
Journal ArticleDOI
Effects of Forest Cutting and Herbicide Treatment on Nutrient Budgets in the Hubbard Brook Watershed-Ecosystem
TL;DR: Large increases in streamwater concentration were observed for all major ions, except NH4+, SO4 = and HCO3—, approximately five months after the deforestation, and an inverse relationship between sulfate and nitrate concentrations in stream water was observed in both undisturbed and deforested situations.
Journal ArticleDOI
Nutrient Release From Decomposing Leaf and Branch Litter in the Hubbard Brook Forest, New Hampshire
TL;DR: Carbon-to-element ratios in decomposing litter varied between species and elevation at different times of the year, but element:P ratios were much more uniform.
Journal ArticleDOI
The Hubbard Brook Ecosystem Study: Forest Biomass and Production
TL;DR: Analysis of stem wood volume reveals an abrupt and striking decrease in volume growth and productivity from 1956-60 to 1961-65, and both drought and effects of increasing air pollution may be responsible for the recent decrease in productivity.
Journal ArticleDOI
Acid Rain on Acid Soil: A New Perspective
Edward C. Krug,Charles R. Frink +1 more
TL;DR: There is evidence that acidification by acid rain is superimposed on long-term acidification induced by changes in land use and consequent vegetative succession, and the interactions of acid rain, acid soil, and vegetation need to be carefully examined on a watershed basis in assessing benefits expected from proposed reductions in emissions of oxides of sulfur and nitrogen.
References
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Journal ArticleDOI
Nutrient Cycling: Small watersheds can provide invaluable information about terrestrial ecosystems.
F. H. Bormann,Gene E. Likens +1 more
Journal ArticleDOI
The Calcium, Magnesium, Potassium, and Sodium Budgets for a Small Forested Ecosystem.
TL;DR: The balance of calcium, magnesium, potassium, and sodium was studied in six watersheds of the Hubbard Brook Experimental Forest at West Thornton, New Hampshire, and the relationship between concentration and discharge was not significant for Ca+ and Mg+ + in any of the watersheds, but was inversely significant for Na+ .
ReportDOI
Sources of mineral constituents in water from granitic rocks, Sierra Nevada, California and Nevada
TL;DR: In this paper, the authors proposed a method to solve the problem of the "missing link" problem in the context of artificial intelligence.______ __________ ________ ___________ 1
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Geochemical and mineralogical studies on the weathering of granitic rocks
TL;DR: In this paper, chemical, mineralogical, and autoradiographic techniques applied to the study of five weathering profiles developed on granitic rocks of Oklahoma and Georgia indicate that mineral stabilities generally follow the expected sequence: plagioclase, biotite, K-spar, quartz, from least to most stable respectively.