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Books > Earth & environment > Earth sciences > The hydrosphere > Hydrology (freshwater)
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Restoration of Watersheds and Estuaries (Hardcover)
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Restoration of Watersheds and Estuaries (Hardcover)
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The Columbia River Basin is one of the nations largest watersheds
and extends mainly through four Western states and into Canada.
Activities such as power generation and agricultural practices have
impaired water quality in some areas, so that human health is at
risk and certain species, such as salmon, are threatened or
extinct. Chapter 1 reports on the actions related to restoration
efforts in the Basin. The San Francisco Bay Delta watershed --
which drains a vast area of California from the Sierra Nevada
Mountains to the Pacific Ocean -- supplies drinking water for 25
million people and provides irrigation for about half the nations
fruit and vegetable production. Decades of development and
agriculture have led to large reductions in water quality and
supply, natural flood protection, and habitats across the
watersheds three major regions: the Bay, the Delta, and the upper
watershed. As described in chapter 2, federal entities have been
working with nonfederal entities for decades to protect and restore
the watershed. The Long Island Sound, an estuary bordered by
Connecticut and New York, provides numerous economic and
recreational benefits. However, development and pollution have
resulted in environmental impacts, such as the degradation of water
quality. Chapter 3 focuses on the Study to restore and protect the
Sound. Puget Sound is the nations second-largest estuary and serves
as an important economic engine in Washington State, supporting
millions of people, major industries, and a wide variety of
species. However, according to the CCMP, human use and development
have degraded water quality and habitats and harmed critical
species such as salmon. Chapter 4 reviews the efforts to restore
Puget Sound.
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