Watersheds
I took this photo of waste discarded on the side of a major road in Fes, Morocco, in July 2022. This vegetation is slowing it down from reaching the Oued Fes (or Fes River), which provides an important source of water for the Old Medina
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Sources of pollution in the Bogota River Basin
Interested in More? Check this out!
Interested in More? Check this out!
Hubbard Brook Study
Hubbard Brook Study
Established in 1955 by the USDA Forest Service
A 7,800-acre northern hardwood forest situated New Hampshire
The Hubbard Brook Ecosystem Study was founded in 1963 and is one of the longest running and most comprehensive ecosystem studies in the world.
Long-term studies
Long-term studies
Of air, water, soils, plants, and animals.
The location was selected because there are many small watersheds along the same mountain, separated by divides.
The conditions (soil, climate, biological community) are similar. Small changes in one watershed can be compared to the others and measure the effects.
Aquifer Flow and Water Tables
Watersheds, Conflict and Cooperation
Watersheds, Conflict and Cooperation
Colorado River
Colorado River
A real TOTC… Colorado River, major river of North America, rising in the Rocky Mountains of Colorado, U.S., and flowing generally west and south for 1,450 miles (2,330 kilometres) into the Gulf of California in northwestern Mexico.
From 1950 to 2000, the percentage of the country’s population in the US Sun Belt region increased from 28% to 40%, putting more pressure on freshwater resources. Little water flows down the Colorado River once crosses the US-Mexican border. Farmers are strained for resources in growing crops. Does Mexico have claim over water resources before they cross international borders?
The Great Lakes
The Great Lakes
A real TOTC… the Great Lakes contain about 20% of the world’s surface freshwater. Two Canadian provinces and eight US states line the borders of the five lakes. Who gets to use the freshwater resources? Who is in charge of the management of the resources?
The eight states enacted the Great Lakes Charter (1985), strengthened by the Great Lakes Compact (2008), which restricts water withdrawals to only counties that are partly or completely within the area of the watershed and aquifer, in hopes to sustainably manage water use and guarantee aquifer recharge. The compact is the means by which the states implement the governors' commitments under the Great Lakes–St. Lawrence River Basin Sustainable Water Resources Agreement that also includes the Premiers of Ontario and Quebec.
What determines the watershed divides or boundaries?
What determines the watershed divides or boundaries?
Mountain Building (Volcanoes)
Mountain Building (Uplift)
Glaciers
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