cultural eutrophication
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Cultural eutrophication — is the process that speeds up natural eutrophication because of human activity.[1] Due to clearing of land and building of towns and cities, land runoff is accelerated and more nutrients such as phosphates and nitrate are supplied to lakes and… … Wikipedia
Eutrophication — The eutrophication of the Potomac River is evident from its bright green water, caused by a dense bloom of cyanobacteria. Eutrophication (Greek: eutrophia healthy, adequate nutrition, development; German: Eutrophie) or more precisely… … Wikipedia
eutrophication — See eutrophic. * * * Gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem such as a lake. The productivity or fertility of such an ecosystem increases as the amount of organic… … Universalium
hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… … Universalium
Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… … Wikipedia
Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p … Wikipedia
Marine pollution — While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm. Marine pollution occurs when harmful, or potentially harmful effects, can result from the entry… … Wikipedia
Dead zone (ecology) — This article is about the oceanic phenomenon. For other uses, see Dead Zone (disambiguation). Red circles show the location and size of many dead zones. Black dots show dead zones of unknown size. The size and number of marine dead zones areas… … Wikipedia
Hypoxia (environmental) — Hypoxia, or oxygen depletion, is a phenomenon that occurs in aquatic environments as dissolved oxygen (DO; molecular oxygen dissolved in the water) becomes reduced in concentration to a point where it becomes detrimental to aquatic organisms… … Wikipedia
Cyanotoxin — Green scum produced by and containing cyanobacteria, washed up on a rock in California during an algal bloom Cyanotoxins are toxins produced by bacteria called cyanobacteria (also known as blue green algae). Cyanobacteria are found almost… … Wikipedia
