Write an Essay need of dam.
Answers
Most dams are designed to accomplish a variety of functions, which include flood control, flat water recreation, hydropower electricity generation, and water supply. Although these seem like good reasons for the existence of dams, this type of constructions bring greater negative effects than good ones. The "environment effects of dams include loss of land and biological resources to inundation, reservoir sedimentation and downstream erosion, and hydrological changes unfavorable to many native or desirable species." Dams just strangle rivers and the perfect example of the damage dams cause to rivers is what is happening to the Mekong River in Asia.
The Mekong river covers more than 4500 kilometers through 6 countries.
These types of damages are being revaluated to see if the benefits of these dams are superior to the environmental and social costs. The Comision of The Mekon river, an organization which normally defends development in Laos, Thailand, Cambodia, and Vietnam, said that "the ecosystem of the Mekong was deteriorating" and added: "If the current riddem of damage continues, the forests, the biodiversity, the existence of fish and quality of the soil will all be damaged to the point were recuperation will be impossible.
Most dams are designed to accomplish a variety of functions, which include flood control, flat water recreation, hydropower electricity generation, and water supply. Although these seem like good reasons for the existence of dams, this type of constructions bring greater negative effects than good ones. The "environment effects of dams include loss of land and biological resources to inundation, reservoir sedimentation and downstream erosion, and hydrological changes unfavorable to many native or desirable species." Dams just strangle rivers and the perfect example of the damage dams cause to rivers is what is happening to the Mekong River in Asia.
The Mekong river covers more than 4500 kilometers through 6 countries.
These types of damages are being revaluated to see if the benefits of these dams are superior to the environmental and social costs. The Comision of The Mekon river, an organization which normally defends development in Laos, Thailand, Cambodia, and Vietnam, said that "the ecosystem of the Mekong was deteriorating" and added: "If the current riddem of damage continues, the forests, the biodiversity, the existence of fish and quality of the soil will all be damaged to the point were recuperation will be impossible.