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Humanimpact on Water

TermDefinition
Watershed A Watershed: Is the area of land that funnels all of its surface water and groundwater into a body of water, such as a stream, river, lake, aquifer, or ocean. A ridge called a divide separates watersheds
Aquifer Aquifer: An underground layer of permeable rock, or sediment that collects, holds and transports water. Water enters the aquifer by percolating (or flowing) through the top layers of soil. Percolation" The slow passing of liquid through sediment and rock
Point Pollution Pollution that comes from a single, identifiable source, like a factory or a sewage pipe.
Non-Point Pollution Pollution that comes from many places, like runoff fields, streets, and yards.
Runoff Water from rain or melted snow that flows over the land and into rivers, lakes, or oceans. This water often pick up pollutants, such as chemicals, fertilizes, and litter.
Algae Bloom Fertilizer runoff used on crops and lawns to help with growth of plants wash into nearby lakes and rivers. This fertilizer also causes algae to grow, which uses up the oxygen in the water and harms aquatic life. The process of waterways becoming rich in n
Urban Development Buildings and concrete cover surface reducing the amount of area that precipitation can percolate into the ground and recharge an aquifer.
Recreational Activities Water pollution from boat gasoline and litter, disturbance of aquatic ecosystems.
Land Subsidence Removing a large amount of groundwater and not giving enough time for aquifers to replenish causes the ground to sink in areas above quifers. This is called land subsidence.
Positive Human Impacts Reducing water usage, Xeriscaping (water-efficient landing-scaping), Proper disposal of trash and waste, Implementing water treatment systems, Creating protected areas around water bodies, Planting by rivers to reduce amount of fertilizer in waterways.
Created by: 130820
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