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The importance of dams
we are blessed with the types of goods which are innumerable. One of these blessings, rain and seas, springs and rivers that run through the prairies and cut thousands of miles to enjoy us life, it has been associated with life-water, he says: We made from water every living thing, which is the blessing of Almighty God of the people, he says: Say: Do you see that Maakm become Gora it comes to you a particular water.
How benefited people from the grace of the water and how to think about the preservation of such grace?
Of course, the establishment of dams because of their great importance in life have realized the old countries since as history and, for example, starting from the dam of Marib in Yemen and more recently, such as the High Dam in Egypt.
century is the last the world saw the construction of more than forty-five thousand of large dams with a height of more than 15 meters, while small dams that do not exceed 15 meters, it reported 800,000 dam around the world, including in the United States alone 96,000 One reason for the importance of building dams recall reasons the following: 1 - to provide drinking water to some areas where the water at least to benefit from rainwater so do not go in vain 2. dams of the main factors for the prosperity of agricultural life in Albadan that depend on agricultural resources in the economy, livestock and the consequent construction of dams expansion of cultivated land with the diversification Agriculture and the establishment of a massive agricultural projects 3. Impact of dams in mitigating climate. It is necessary to note that the effectiveness of dams and ponds in mitigating climate, thereby increasing the amount of rain to say that this is supported experiments the United States through the results utilitarian to build and Tennessee Valley US. Climate has improved in the vicinity of the dam at the impact of his 4 - dams is an important way to save the soil from erosion during the decline of the floods when rains are heavy and this contributes to reduce the amount of dredged soil and the area and damage large and long-term arising from them such as the collapse of houses affected by the floods. 5 - dams and providing water for livestock and grazing pastures and the establishment of her fertile. It is the most important impediments to increased livestock is the lack of water and pasture land dried up. 6 - dams and their impact on the spring water. It is recognized that the way the winter water flow has a close relationship with the presence of springs or lack thereof. When the rains profusely and being a big floods, the water does not sink into the soil to appear after as the eyes of the other regions, but rather complement its decline and washing away the soil with it and most of them go to waste. This situation changed completely when the dams, so that the dam collects water and keep it in a confined area. If the availability of this accumulated water to seep gradually to the underground, it takes normal between the earth layers show, sometimes, in the form of fresh eyes. 7 - electric power generation least harmful to the environment of dams and cheap prices. 8 - for rivers that are held the dams do not forget that these dams first mission to maintain the level of the rivers for the purpose of yachts and boats movement between parts of the river that separates the dams. Here we give, for example, the Thames River, which runs through London and use as bridges to move vehicles or persons and others from the West to the other, as well as to transfer the wires, water pipes and gas 9 - protection from floods that threaten people's lives and their property, and the reality of life, the farming areas of fertile often prone to flooding Many dams have been built in the world to protect against flood risk and thus also ensure that the departure of the inhabitants of those areas. 10 - many tourist benefits of taking advantage of dam lakes and make it a major source of the region's economy 11. Nutrition groundwater to the ground and prevent desertification and crawling desert.
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