they route it differently
By building dams for irrigation and planting grass that do not need much water
Turkey
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Depends on the size of the dam, and how the water is managed. Big dams will flood big areas of land, and limit the amount of water flowing downstream, which can cause drought. Dams can also stop seasonal flooding, which the wildilfe might have adapted to.
By pollution, by using its water for irrigation, building dams and diverting its flow etc - see the link below.
Irrigation.
Building dams significantly alters the natural water cycle by modifying the flow of rivers and creating artificial lakes. Dams can reduce the downstream flow of water, impacting ecosystems and wildlife that depend on consistent water levels. Additionally, they can lead to increased evaporation from the reservoir surface, affecting local humidity and precipitation patterns. Overall, dams can disrupt the balance of the water cycle in surrounding areas.
it is a wall kind of thing that blocks the water from going to the other side.
One environmental drawback of building hydroelectric dams is the disruption of river ecosystems, including changes in water flow, sediment transport, and fish migration patterns. Dams can also lead to reduced water quality downstream and the displacement of communities and wildlife due to flooding of land for reservoirs.
Building dams helps prevent erosion by regulating the flow of water in rivers, reducing the speed and volume of water that can cause erosion downstream. Dams also help to stabilize river channels and can create reservoirs that store sediments and reduce erosion. Additionally, controlled release of water from dams can prevent flooding events that can worsen erosion.
The building of dams is the water conservation strategy that is based on the catch water where it falls.
a lake