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Encyclopedia > Redwood Creek

Redwood Creek is a large stream in Humboldt County, California. The rivers headwaters are in the Coast Range at about 5,000 feet and it flows roughly northwest until it empties into the Pacific Ocean near the small town of Orick, the only urban development in the 280 square mile-watershed. A running stream. ... Humboldt County is a county located on the northwest coast of the U.S. state of California, on the Pacific Ocean. ... A Coastal range is any range of mountains forming a coastline. ... A drainage basin is the area within the drainage basin divide (yellow outline), and drains the surface runoff and river discharge (blue lines) of a contiguous area. ...


The greatest problem for the creek and its tributaries is erosion, which leads to excessive sediment buildup in the streambeds. The increased erosion is caused by extensive logging in the upper watershed, which began in the 1950s and continues today as the primary land use. In the last couple of decades along, 65% of all land and 75% of the forested land in the basin has been harvested for timber. The building of logging roads has also increased erosion in the watershed. The sediment has filled in the pools and spawning habitat used by steelhead and coho salmon, which has caused a major decline in the fishery. Severe soil erosion in a wheat field near Washington State University, USA. Erosion s the displacement of solids (soil, mud, rock and other particles) by the agents of wind, water or ice, by downward or down-slope movement in response to gravity or by living organisms (in the case of... Sediment is any particulate matter that can be transported by fluid flow and which eventually is deposited as a layer of solid particles on the bed or bottom of a body of water or other liquid. ... Loggers on break, c. ... A forest is an area with a high density of trees (or, historically, a wooded function as carbon dioxide sinks, animal habitats, hydrologic flow modulators, and soil conservers, constituting one of the most important aspects of the Earths biosphere. ... Timber in storage for later processing at a sawmill Timber is a term used to describe wood, either standing or that has been processed for use—from the time trees are felled, to its end product as a material suitable for industrial use—as structural material for construction or wood... Binomial name Oncorhynchus mykiss Walbaum, 1792 Subspecies See text. ... Binomial name Oncorhynchus kisutch (Walbaum, 1792) The Coho salmon (Oncorhynchus kisutch - from the Russian Kisutch - кижуч) is a species of anadromous fish in the salmon family. ... A lobster boat unloading its catch in Ilfracombe harbour, North Devon, England A fishery (plural: fisheries) is an organized effort by humans to catch fish or other aquatic species, an activity known as fishing. ...


Habitat in the lower portion of the creek has been degraded due to actions taken after the flooding of 1964. The United States Army Corps of Engineers channelized the last 3.4 miles of the creek through dredging and the building of levees. This has changed the creek's hydrology and sedimentation patterns, resulting in a decrease in water volume. In addition, it has destroyed the riparian vegetation, which helps protect against erosion and decreases the water temperature to a level suitable for the creek's coldwater fish. Look up flood in Wiktionary, the free dictionary. ... United States Army Corps of Engineers logo The United States Army Corps of Engineers, or USACE, is made up of some 34,600 civilian and 650 military men and women. ... Dredging is the process by which either new waterways are created or existing waterways are deepened. ... A levee, levée (from the feminine past participle of the French verb lever, to raise), floodbank or stopbank is a natural or artificial embankment or dike, usually earthen, which parallels the course of a river. ... A riparian zone schematic from the Everglades. ... Coldwater fish, in the context of aquariums, refers to fish species that prefer cooler water temperatures than tropical fish, typically below 20 °C (70 °F). ...


The lower portion of the creek and part of its estuary are in Redwood National and State Parks, but the upper portion is mostly privately owned. The park makes up 41 percent of the watershed and the Bureau of Land Management and United States Forest Service own 3 percent. Private lands downstream of the parks makes up only 1 percent. Private lands upstream make up 55 percent, 90 percent of which is owned by eight landowners, Simpson Timber Company being the largest. Estuaries and coastal waters are among the most productive ecosystems on Earth, providing numerous ecological, economic, cultural, and aesthetic benefits and services. ... Redwood National and State Parks is a jointly administered group of nature parks in the northern region of the U.S. state of California. ... US BLM logo The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior which administers Americas public lands, totaling approximately 261 million surface acres (1,056,229. ... The USDA Forest Service, a United States government agency within the United States Department of Agriculture, is under the leadership of the United States Secretary of Agriculture. ...


References

  • United States Forest Service (PDF)
  • California State Water Resources Control Board (PDF)
  • Save the Redwoods (PDF)

 
 

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