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Atmospheric Nitrogen Deposition
Science, 1997David A. Wedin and David Tilman (Reports, 6 Dec., p 1720 ) show that increased nitrogen inputs to terrestrial ecosystems might cause smaller increases in the capacity of those ecosystems to store carbon than expected.
Bruce A. Hungate +3 more
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Decline in atmospheric mercury deposition in London
Journal of Environmental Monitoring, 2009Bulk atmospheric deposition samples were continuously collected using a standard IVL-type mercury (Hg) bulk deposition collector from January 1999 to December 2005 in order to monitor Hg deposition in London. The volume-weighted annual Hg concentrations in deposition gradually declined from 76.0 ng L(-1) in 1999 to 43.8 ng L(-1) in 2005 ...
Handong, Yang +3 more
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Atmospheric deposition in complex forest landscapes
Boundary-Layer Meteorology, 1994Atmospheric dry deposition in eight forest edges was estimated by means of throughfall and bulk precipitation measurements. Dry deposition was found to be enhanced in the first 5 edge heights. Deposition enhancement was strongly dependent on forest density, edge aspect and on the gas or particle under consideration.
Draaijers, GPJ +2 more
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Atmospheric deposition to watersheds in complex terrain
Hydrological Processes, 1997Single collection stations for wet or bulk deposition are generally inadequate to describe atmospheric inputs to watersheds in complex terrain. Atmospheric deposition is delivered by wet, dry and cloud deposition processes, and these processes are controlled by a wide range of landscape features, including canopy type and structure, topographic ...
GARY M. LOVETT +2 more
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Atmospheric Pressure Plasma Deposition of Polyfuran
Journal of Macromolecular Science, Part A, 2007The atmospheric pressure radiofrequency (RF) plasma polymerization of furan was carried out with the objective of synthesizing polyfuran thin film. The structure, compositions and morphology of the plasma deposited polyfuran film were investigated by Fourier transform infrared (FTIR), atomic force microscopy (AFM), ultraviolet‐visible absorption ...
Gok, Aysegul, Oksuz, Lutfi
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Atmospheric Deposition of Metals to Forest Vegetation
Science, 1982Atmospheric deposition during the growing season contributes one-third or more of the estimated total flux of lead, zinc, and cadium from the forest canopy to soils beneath an oak stand in the Tennessee Valley but less than 10 percent of the flux of manganese.
S E, Lindberg, R C, Harriss, R R, Turner
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Atmospheric deposition of 7Be and 10Be
Geochimica et Cosmochimica Acta, 1989Measurements of {sup 10}Be in precipitation taken in Hawaii, Illinois and New Jersey over a period of five years are reported. The problem of contamination by the isotope being resuspended on wind blown soil that is also collected is addressed. Rain collected at Mauna Loa, Hawaii has such low values of dust contamination that it has been taken as clean,
Louis Brown +3 more
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Forest canopy transformation of atmospheric deposition
Water, Air, and Soil Pollution, 1988Solute fluxes to the ground in open plots and under the forest canopy of different species were investigated in a number of long-term ecosystem studies in West Germany. From the canopy flux balance, rates of interception deposition and canopy/deposition interactions were assessed. Chemically, both open precipitation and throughfall are dilute solutions
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Atmospheric deposition of nutrients to the North Atlantic Basin
Biogeochemistry, 1996Atmospheric chemical models are used to estimate the deposition rate of various inorganic oxides of nitrogen (NOy), reduced nitrogen species (NHx) and mineral dust to the North Atlantic Ocean (NAO). The estimated deposition of NOy to the NAO (excluding the coastal ocean) and the Caribbean is 360 × 109 Moles-N m-2 yr-1 (5.0 Tg N); this is equivalent to ...
Prospero, J.M. +8 more
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Atmospheric Chemistry and Deposition
2001The two most significant elements with atmospheric components that influence ecological processes at Niwot Ridge are carbon (C) and nitrogen (N). The enrichment of the atmosphere by carbon dioxide (CO2) is ubiquitous across the globe. Global and regional patterns of the annual increases in atmospheric CO2 as well as the current and anticipated ...
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