Watershed Flashcards
Rotarian buffer
Banks rivers stream waterway and plant and animal communities
Typical riparian area buffer
Stream banks lake borders and marshes
Natural resource
Materials that are in nature
Erosion
Process in which a material is one away by a stream of liquid
Alien species
Plant or animal that are non-area
Nonpoint source
Pollution just charged over a wide land area not from one specific location
Eutrophication
The process by which a body of water but comes in Riched and dissolved nutrients to stimulate the growth of plant life resulting in depletion of dissolved oxygen one of the leading causes of poor water
Invasive species
Organisms that are non-native to the ecosystem and cause harm to the ecosystem
as a pollutant and Alan at my compound that causes abnormal he have organic growth and what our ecosystem
Nutrients
Sediment
Is the base sand clay silt and other soil particles that settle at the bottom of a body of water sediment can come from soil erosion or from the decomposition of plants and animals
Storm drain
Constructed opening in a road system through which the road surface flows into an underground sewer system
Impervious
A surface composed of any material which prevents the natural infiltration of water into soil examples are concrete sidewalks and asphalt street
Watershed
The land that supplies water to a river system another name for a watershed inch drainage basin
Four major rivers and Virginia are
James York Rappahannock Potomac
Tributaries
The smaller streams and rivers that feed into a main branch
River systems
A river and all its tributaries
Name six states that contain the Chesapeake Bay watershed
Virginia Maryland Delaware Pennsylvania West Virginia New York
Wetland
An area of land that is covered with a shallow layer of water during some or all of the year
Wetlands
Sheltered areas of water
Have a rich supply of nutrients
Provide habitat for many living things
Help control floods that absorbing run off from heavy rain
Estuary
Coastal and let’s or days where water from rivers mix with salty ocean water
–Chesapeake bay
Brackish
Water is part salt and part fresh
Nonpoint source pollution
Rainfall snow melt or storm runs Overland or through the ground picks up pollutants and deposit them into rivers and lakes
The three most common nonpoint source pollution
Fertilizer
cement construction
pet waste
Dissolved oxygen–D O
How many molecules of oxygen are in the water
Measured in parts per million-ppm
Water temperature
Affects the ability of the water to hold oxygen
PH
Measures how acidic or basic a liquid is
Measures on a scale of 14 0 Is very acidic 14 is very basic Seven is neutral Most aquatic animals prefer a range of 6.5 8.0
Turbidity
Measures the clarity or cloudiness of the water
Is measured in JTU-Jackson turbidity units
Turbid water is caused by suspended matter such as Clay silt organic or inorganic and microscopic organisms
Three factors that affect the percent saturation
Salinity and
temperature
atmosphere pressure
Water temperature
Affects the ability of the water to hold oxygen
Call water has more dissolved accident them warm water
Affect the rate of photosynthesis aquatic plants
