One problem is that as nitrogen is leached from the soils, it collects in the ground water and in surface streams. This can cause eutrophication, an excess growth of plants and algae, in nearby streams and lakes (Weil, et al, 441). Also, concentrations of nitrate of 10 mg/L or more in drinking water can cause methemoglobinemia, or blue baby syndrome in infants (Hubbard, 802). In well-drained soils, organic material, which, of course, contains nitrogen, "may decompose faster than it is replenished (Dolman and Bud, 1967)" (Gambrell, et al, 321). So, in order to s... ... middle of paper ... ....; "Nitrate transport on a sandy coastal plain soil underlain by plinthite."
One of the most devastating effects of flood events is the loss of life, along with the damage to properties. Other effects include economic loss, disturbance of ecological resources, food shortages and starvation (Haq et al., 2012). The amount of warning time that is provided to the population at risk of flooding has been described as key factor to prevent the loss of lives (Graham, 1999). Therefore, adequate prediction capability is essential to mitigate flooding damages and establish flood-warning systems. Floods have a complex spatial and temporal dynamic that motivates their study.
2005. Vol. 57B, #3, 269-271. Sarmiento, J.L., Slater, R.D., & Gnanadesikan, A. “Effects of patchy ocean fertilization on atmospheric carbon dioxide and biological production.” Global Geobiochemical Cycles.
For example, the amount of plants available changes the amounts of nutrients available, and the number of predators available changes the amounts of prey and therefore plants available. Small changes can have big effects. Overall, the factors that determine the health and sustainability of an aquatic ecosystem include the energy flow, nutrient cycling, biodiversity and interactions among all the components of the ecosystem. One major driver of the energy in an ecosystem is light (Sterner and Hessen, 1994, pp. 1--29), usually in the form of sunlight.
What is eutrophication? Eutrophication is, in the simplest terms, too much of a good thing. It occurs when too many nutrients are deposited into a body of water, throwing off the established balance of production and consumption of organic matter. Eutrophication can take place in ponds, lakes, rivers, and oceans. At first, the overload of nutrients in the body of water encourages plant growth.
However this resource is being mistreated. Water pollution is a growing problem in the Great Lakes. The Great Lakes is being contaminated by pollutants that are released for direct and indirect sources without proper treatment. This is causing the lake to being polluted with harmful chemicals. By identifying the cause we can take initiative to help conserve the Great Lakes and to help restore it to its natural beauty.
1995 National Air Quality Trends Brochure -- Toxic Pollutants. 1995 National Air Quality: Status and Trends. [WWW document]. URL Go To, 1995. United States Environmental Protection Agency.
Hydrological Processes 13: 993–1009. Walling DE, Owens PN, Carton J, Leeks GJL, Lewis S, Meharg AA, Wright J. 2003. Storage of sediment-associated nutrients and contaminants in river channel and floodplain systems. Applied Geochemistry 18: 195–220.
How Acid Rain Affects the Aquatic Ecosystem Abstract This paper shows that acid rain is a reality. It is destroying our freshwater ecosystems and must be stopped in order to save them. If the problem is not fixed soon the aquatic ecosystems will be destroyed. Table of Contents 1. What is acid rain?
(1999). The Science of Environmental Pollution. Lancaster, Pa: Technomic Publishing. Supalla, Raymond J. (2003 March) International Journal of Water Resource Development, 92, 310-330.