Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The (typically undesirable) increase in concentration and or of
deposition of water-borne silt in a body of water.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Pea-Gravel Banks: Bass love to spawn on hard, clean, pea-gravel bottoms, which are usually most prevalent in creek arms and coves on the lower (or deeper) ends of reservoirs where siltation is less common.
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Coral reefs: Recent estimates indicate that approximately 20% of coral reefs have been lost, with an additional 20% having been degraded in the last several decades of the twentieth century, through impacts such as siltation and destructive fishing practices.
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Its major environmental issues include water pollution from agricultural runoff threatens fishery resources; deforestation of tropical rain forest; land degradation and soil erosion threatens siltation of Panama Canal; air pollution in urban areas; and mining threatens natural resources.
Panamá 2009
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ATVs destroy streambeds and cause erosion and siltation of streams.
ATVs in Wilderness Dave Hurteau 2008
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Angola's major environmental issues include: overuse of pastures and subsequent soil erosion attributable to population pressures; desertification; deforestation of tropical rain forest, in response to both international demand for tropical timber and to domestic use as fuel, resulting in loss of biodiversity; soil erosion contributing to water pollution and siltation of rivers and dams; inadequate supplies of potable water.
Angola 2009
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Bituminous coal mines are common, and have caused the siltation and acidification of streams.
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Resultant stream turbidity and stream habitat impairment from siltation are also greater than in Ecoregions 67a and 67j.
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In many countries, the change in area and quality of forest cover has resulted in catchment destruction, siltation, loss of hydroelectric power and soil erosion.
Africa's renaissance for the environment~ forests and woodlands 2009
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Resultant stream turbidity and stream habitat impairment from siltation are also greater than in Ecoregions 67a and 67j.
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Other major disturbances are habitat alteration caused by hotel and marina construction; nutrient enrichment from run-off of agrochemicals that are increasingly being used on banana and citrus plantations and from sewage pollution from tourist resorts and residential and urban centers; erosion of the shoreline by removal of vegetation including mangroves and seagrass areas; and choking of corals by siltation resulting from dredging and sand mining.
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