Ecology of Dams

The Ecology of Dam
Summary:
Dams affect our communitties somet time in a positive way and some times in prohibit ways. There ar several types of dams, some examples ar:
hold Dams- Which ar used to help prevent flooding in small ares
Diversion Dams- Which help change tthe direction of urine to irrigate the crops
Flood Control Dams- Which are often do out of mass amounts of clay, sand, gravel , and rock, and sometimes concrete
Hydroelectric Dams- Which are used to produce electricity
Interrupting natural cycles:
The ones that mostly affect the enviorment are the flood control dams and the hydroelectric dams. Floods help deposite nutrients from the land into the river. Floods a care may help protect young fishes from predators. If floods dont occur that give affect the young fishes in a bad way. The drug abuse have enough food and shelter to hide from predators.
Dams excessively prevent flood which may affect vegetation which imagine on regular flood to occur. Yet some dams are built so that houses may be built in floodplains. Then riparian vegetation occurs which is the the plants along the river banks. An example is in Southwest United States, in which floodplains on cottonwood and marsh have been substituted by dry of grass and tamarisk.




Armoring the river bottom:
too when water is released from the reservoir the may cause small floods like the ones found in nature which cause scouring and armoring of the riverbeds. too with this happening energy is get togetherd which as an affect takes out small sediments (silt, sand, and gravel), plants, animals, and debris. All of that causes for the plants, macroinvertebrates and fish to lose their intrest in the riverbed below the dam as a habitat.
Removing Sediment:
If dams are constructed the the rivers lose all of their sediments. The sediments of a dammed river are droped out and they accumulate behind the dam and this may couse a big conundrum in the long run. Dam are built to bugger off water not wet sediment...If you want to get a full essay, order it on our website: Orderessay



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