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United States Environmental Protection Agency
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Items Found: 76
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Your Search: (SUBJECT=Nitrogen cycle)
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Acid soil and acid rain the impact on the environment of nitrogen and sulphur cycling /
Agriculture and the nitrogen cycle : assessing the impacts of fertilizer use on food production and the environment /
Air quality criteria for oxides of nitrogen /
Air quality criteria for oxides of nitrogen : final report.
Air quality criteria for oxides of nitrogen. Volume 2. /
Animo Acid Composition of Suspended Particles, Sediment-Trap Material, and Benthic Sediment in the Potomac Estuary.
Atmospheric nitrogen deposition loadings to the Chesapeake Bay : an initial analysis of the cost effectiveness of control options /
Basic Research in the Aquatic Environment: Effects of Eutrophication on Phytoplankton Populations and Selected Species of Aquatic Vascular Plants.
Baywide Nutrient Cycling (Denitrification) Monitoring Program-In situ loggers : progress report no. 38 (October-December 2011) /
Biogeochemical cycling of carbon, nitrogen, and phosphorus in saltwater marshes of Lavaca Bay, Texas.
Biology of the nitrogen cycle
Carbon nitrogen sulfur : human interference in grand biospheric cycles
Denitrification as affected by irrigation frequency of a field soil /
Descriptive Basis for a Model of Soils Biogeochemistry (Chapter 12).
Dynamics of the nitrogen cycle in lakes
Dynamics of the Nitrogen Cycle in Lakes.
Ecology of the nitrogen cycle
Ecosystem stress from chronic exposure to low levels of nitrate /
Effect of Unlined Treated Sewage Storage Ponds on Water Quality in the Ogallala Formation.
Emission rates for biogenic NOx
Environmental Control of Nitrogen Fixation in Lakes: I. In situ Nitrogen Fixation by Free Living Blue-Green Algae. II. Nitrogen Fixation by the Duck-Weed-Algal Association.
Evaluation of pollution control processes : Upper Thompson Sanitation District /
Experimental Inducement of Nitrogen Saturation at the Watershed Scale.
Factors influencing the redistribution of nitrogen by cattle /
Fate of Nitrogen in Aquatic Ecosystems.
Feasibility of overland flow for treatment of raw domestic wastewater /
Feasibility of overland-flow treatment of feedlot runoff /
Field measurement of denitrification /
Function of Marshes in Reducing Eutrophication of Estuaries of the Middle Atlantic Region.
Human alteration of the global nitrogen cycle : causes and consequences /
Interactive Effects of O3 and CO2: Implications for Terrestrial Ecosystems.
Kinetics of Algal Systems in Waste Treatment. Light Intensity and Nitrogen Concentration as Growth-Limiting Factors.
Modeling dynamics of biological and chemical components of aquatic ecosystems /
Modeling nitrogen cycling and export in forested watersheds using HSPF
Nitrogen Budget of a North Carolina Estuary.
Nitrogen cycling dynamics in agricultural fields fertilized with liquid swine waste-- microbial nitrification and denitrification
Nitrogen cycling in coastal marine environments /
Nitrogen cycling in microcosms and application to the biology of the northern arm of the Great Salt Lake
Nitrogen cycling in the Americas : natural and anthropogenic influences and controls /
Nitrogen cycling in the North Atlantic Ocean and its watersheds /
Nitrogen dynamics in forested watersheds of the Chesapeake Bay : 17-19 June 1997, Frostburg, MD /
Nitrogen in the environment : sources, impacts, management /
Nitrogen in the marine environment /
Nitrogen isotope techniques
Nitrogen oxides : impacts on public health and the environment /
Nitrogen recycling in the Chowan River /
Nitrogen Sources and Cycling in Natural Waters.
Nutrient pollution in coastal waters : priority topics for an integrated national research program for the United States /
Opportunities in nitrogen management research : improving applications for proven technologies and identifying new tools for managing nitrogen flux and input in ecosystems /
Optimizing nitrogen management in food and engergy production and environmental protection : contributed papers from the 2nd International Nitrogen Conference, 14-18 October 2001, Potomac, Maryland, USA /
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