from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The (typically undesirable) increase in concentration and or of deposition of water-borne silt in a body of water.


from Wiktionary, Creative Commons Attribution/Share-Alike License

silt +‎ -ation


  • 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.

    The 14 Best Hot Spots for Spawing Largemouth Bass

  • 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.

    Ecosystems and Human Well-being~ Wetlands and Water~ Wetlands and Water~ Ecosystems and Human Well-being

  • 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.


  • ATVs destroy streambeds and cause erosion and siltation of streams.

    ATVs in Wilderness

  • Resultant stream turbidity and stream habitat impairment from siltation are also greater than in Ecoregions 67a and 67j.

    Ecoregions of New Jersey (EPA)

  • 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.

    Belize Barrier Reef Reserve System, Belize

  • 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.


  • Bituminous coal mines are common, and have caused the siltation and acidification of streams.

    Ecoregions of Tennessee (EPA)

  • 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

  • Already the feeder streams of the Upper Lake have been taken up for de-siltation and a similar campaign was launched at Ujjain, another major town of the province, followed, though, by disconcerting reports.

    Sunrise over a dying lake


Log in or sign up to get involved in the conversation. It's quick and easy.