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Watersheds
Education Curriculum
Middle School Program
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION
Protecting Maine’s Air, Land and Water
What is a Watershed? (1:17)
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
What is a Watershed?
• The land area that drains to one stream, lake or river
– affects the water quality in the water body that it
surrounds.
• Because we all live on the land, we all live in a
watershed — thus a watershed condition is
important to everyone.
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
What is a Healthy Watershed?
• A healthy watershed is one in which natural land cover supports:
– dynamic hydrologic and geomorphologic processes within their natural range
of variation,
– habitat of sufficient size and connectivity to support native aquatic and
riparian species, and
– physical and chemical water quality conditions able to support healthy
biological communities.
Key Components of a Healthy
Watershed
• Includes:
– intact and functioning headwater streams, floodplains, riparian corridors;
– natural vegetation in the landscape; and
– hydrology, sediment transport, fluvial geomorphology, and disturbance
regimes expected for its location.
Why Do Watersheds Need to be
Protected?
• Healthy watersheds not only affect water quality in a good way, but also
provide greater benefits to the communities of people and wildlife that
live there.
• Healthy watersheds provide critical services, such as;
– clean drinking water
– productive fisheries
– outdoor recreation
Waterway Degradation
What Factors Influence How Much
Water Flows Out of A Watershed?
• Precipitation
• Infiltration
• Evaporation
• Transpiration
• Storage
• Water Use by Humans
What Watershed do We Live In?
Maine Watersheds
Introduction to Watershed
Scavenger Hunt
Add contact information
www.maine.gov/dep

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Watershed-PP.pptx

  • 1. Watersheds Education Curriculum Middle School Program MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION Protecting Maine’s Air, Land and Water
  • 2. What is a Watershed? (1:17) MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
  • 3. What is a Watershed? • The land area that drains to one stream, lake or river – affects the water quality in the water body that it surrounds. • Because we all live on the land, we all live in a watershed — thus a watershed condition is important to everyone. MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
  • 4. What is a Healthy Watershed? • A healthy watershed is one in which natural land cover supports: – dynamic hydrologic and geomorphologic processes within their natural range of variation, – habitat of sufficient size and connectivity to support native aquatic and riparian species, and – physical and chemical water quality conditions able to support healthy biological communities.
  • 5. Key Components of a Healthy Watershed • Includes: – intact and functioning headwater streams, floodplains, riparian corridors; – natural vegetation in the landscape; and – hydrology, sediment transport, fluvial geomorphology, and disturbance regimes expected for its location.
  • 6. Why Do Watersheds Need to be Protected? • Healthy watersheds not only affect water quality in a good way, but also provide greater benefits to the communities of people and wildlife that live there. • Healthy watersheds provide critical services, such as; – clean drinking water – productive fisheries – outdoor recreation
  • 8. What Factors Influence How Much Water Flows Out of A Watershed? • Precipitation • Infiltration • Evaporation • Transpiration • Storage • Water Use by Humans
  • 9. What Watershed do We Live In? Maine Watersheds

Editor's Notes

  1. https://water.usgs.gov/edu/watershed.html https://cfpub.epa.gov/surf/state.cfm?statepostal=ME https://www.epa.gov/hwp/basic-information-and-answers-frequent-questions
  2. Video: https://www.youtube.com/watch?v=QOrVotzBNto
  3. A watershed –– the land area that drains to streams, lakes and/or rivers – affects the water quality in the water body(s) that it contributes to. The type of land use on the watershed will also affect the water quality. Like water bodies (e.g., lakes, rivers, and streams), individual watersheds share similarities but also differ in many ways. Photo Source: http://hawp.org/what-is-a-watershed/
  4. Natural vegetative cover in the landscape, including the riparian zone, helps maintain the natural flow regime and fluctuations in water levels in lakes and wetlands. This, in turn, helps maintain natural geomorphic processes, such as sediment storage and deposition, that form the basis of aquatic habitats. Connectivity of aquatic and riparian habitats in the longitudinal, lateral, vertical, and temporal dimensions helps ensure the flow of chemical and physical materials and movement of biota among habitats.   A healthy watershed has the structure and function in place to support healthy aquatic ecosystems. Hydrology The branch of science concerned with the properties of the earth's water, especially its movement in relation to land. Geomorphology The study of the physical features of the surface of the earth and their relation to its geological structures
  5. Fluvial Of or found in a river. Photo: Fish and Wildlife Service
  6. Streams, lakes, rivers, groundwaters and other waters are interconnected with the landscape and all its activities through their watersheds. They are influenced by naturally varying lake levels, water movement to and from groundwater, and amount of stream flow. Other factors, such as forest fires, stormwater runoff patterns, and the location and amount of pollution sources, also influence the health of our waters.   Pollutants in the watershed such as oil leaks from autos, pet wastes, soil erosion from construction sites or agricultural or timber harvesting may all be carried via rain or storm water or snowmelt into the associated water bodies. Photo: World resources Institute
  7. Picture: https://cfpub.epa.gov/watertrain/moduleFrame.cfm?parent_object_id=1509
  8. Photo: http://learnabouttravelmaps.info/pics/i/images-of-precipitation.html
  9. See Lesson Plan