'Eutrophication' diaporamas de présentation

Water Quality. New York City Department of Environmental Protection. Bureau of Water Supply. Overview of DEP Climate Change Integrated Modeling Project: Present Activity and Future Goals. Donald C. Pierson, Elliot M. Schneiderman, Mark S. Zion, David Lounsbury, and Donald Kent

Eutrophication. The facts. What is Eutrophication you ask?. Eutrophication is when waterways, which are naturally low in nutrients such as phosphates and nitrates, are polluted with fertiliser run-off containing these nutrients.

Embodied and operational energy use of buildings: How sustainable are energy savings?. 13 June 2009. Laure Itard. Renovation of a row dwelling built between 1966-1976. 1. Insulation envelope. 2. HR++-glas. 3. High efficiency boiler (HR107). 4. HR boiler + heat pump boiler.

Soil Phosphorus Issues. Miguel Cabrera and David Radcliffe Crop and Soil Sciences University of Georgia. Intended Outcomes. Understand how P affects water quality Understand how P behaves in soil Understand why manures present a special problem with P

Class 15a: Water resources. Water supply and demand Modification of waterways Water quality and pollution. Availability of water. Only 3% of Earth’s water is fresh Only 0.003% is available Surface water: streams, lakes, etc. Groundwater: found in aquifers. Demand for water.

Ocean Deoxygenation and Coastal Hypoxia i n a Changing World ”. GESAMP 39 18 April 2012 Nancy N. Rabalais et al. Louisiana Universities Marine Consortium nrabalais@lumcon.edu http://www.gulfhypoxia.net. Goolsby et al. 1999, Rabalais 2002. Point Source 10%. Nonpoint Source 90%.

Water Pollution. As the French Broad River enters Henderson Co., it is rated “good.” The rating drops to “poor” by the time it leaves Buncombe County. Why?. Development. Zinc from tires. Runoff from urban areas. Eutrophication. Definition: the over-enrichment of water bodies

THE NITROGEN CYCLE IN SURFACE WATERS. PHYTOPLANKTON ELEMENTAL COMPOSITION. O 53% C 27% K 6.2% H 5.5% N 4.6% Ca 1.0% S 0.7% Na 0.7% P 0.5%. Fe 0.4% Mg 0.4% Zn 0.3% Cu 0.02% B 0.01% Mn 0.009% Co 0.0006% V 0.0006% Mo 0.0001% Si 0.1%; DIATOMS 20%. N 2.

Explicit model of ecosystem behavior #1 Eutrophication will lead to changes in relative abundances of primary producers in a predictable way. . Explicit model of ecosystem behavior #2 Eutrophication will shift N:P ratios of primary producers towards a taxon-specific “Redfield ratio”.

Marine Strategy Framework Directive: Goals and Challenges. Johanna Karhu EU Marine and Fisheries Policy Officer Birdlife Europe. MSFD adopted in July 2008 Transposed into national law Aim: Take measures to maintain or achieve good environmental status (GES) by 2020:.

Pond Ecology. Lakes and ponds are bodies of open standing water Their physical conditions and life vary with distance from the shore. Zones of life in the Pond .

What is Wrong With This Lake?. Eutrophication. Nutrient Cycles Out Of Balance. What is Eutrophication?. An increase in chemical nutrients in an ecosystem Related to chemicals containing nitrogen or phosphorus (e.g. fertilizers and soap) Results in excessive plant growth and decay.

Ecology. Energy Flow in an Ecosystem. Trophic Levels Ecologists use food chains & food webs to model the flow of energy through an ecosystem Each feeding level within a food chain/web = Trophic level 3 Major Trophic Levels 1. Producers Plants, Plankton, Algae

Leaving Certificate Agricultural Science. Fertilizers and Manures. Learning Outcomes. Fertiliser V Manures Straight Fertilisers- CAN, GRP, UREA. Compound Fertilisers – 10:10:20. Farm yard Manure, Slurry Pollution. Fertilizer & Manures. Fertilizer & Manures.

Water Quality. New York City Department of Environmental Protection. Bureau of Water Supply. Potential Impacts of Climate Change on Water Quality in the New York City Water Supply System. Mark S. Zion, Elliot M. Schneiderman and Donald C. Pierson

1. Introduction to Vadose Zone Hydrology. Course objectives. CE/ENVE 320-03 provides theoretical and experimental foundation for understanding and quantifying physical and hydrological properties of soils and other porous media.

Examining Human Impacts on Global Biogeochemical Cycling via the Coastal Zone & Ocean Margins. L. Talaue-McManus Rosenstiel School of Marine & Atmospheric Science University of Miami JGOFS Open Science Meeting, May 5-8, 2003 Washington, D. C., USA. Shelf area = 7 % of ocean surface.

Eutrophication in Water bodies. By: Kelly Toy. Overview. What is Eutrophication Eutrophication management Experiments Nitrogen or Phosphorus control Debate Case Study: Baltic Sea Recommendations. 1. What is Eutrophication?. Definition Sources Process Importance.

ESIP Organization. Gulf of Maine Council on the Marine Environment. Ecosystem Indicator Partnership Steering Committee (5) DFO, EC, EPA, DOI, NOAA. Program Manager. Indicator Work Groups. Aquatic Habitats Climate Change Coastal Development. Contaminants Fisheries/Aquaculture

Eutrophication. EUTROPHICATION. Harmful changes in water caused by too much fertilizer or nutrients getting into the water. Oligotrophic lake with a low level of nutrients. Artificial input of nutrients from run-off and discharge of effluent.