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  2. Human impact on river systems - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_river_systems

    River engineering also handles sediment and erosion control, which can be a threat to humankind by destroying infrastructure, hindering water supply and causing major river cutoffs. River training structures will help to modify the hydraulic flow and the sediment response of a river. [5] Miyagase Dam in Japan

  3. Denudation - Wikipedia

    en.wikipedia.org/wiki/Denudation

    Denudation is the geological process in which moving water, ice, wind, and waves erode the Earth's surface, leading to a reduction in elevation and in relief of landforms and landscapes.

  4. Watershed delineation - Wikipedia

    en.wikipedia.org/wiki/Watershed_delineation

    Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.

  5. Pollution of the Ganges - Wikipedia

    en.wikipedia.org/wiki/Pollution_of_the_Ganges

    A 2006 measurement of pollution in the Ganges revealed that river water monitoring over the previous 12 years had shown fecal coliform counts of up to 100,000,000 MPN per 100 mL [29] and biological oxygen demand levels averaging over 40 mg/L in the most polluted part of the river at Varanasi. The overall rate of water-borne disease incidence ...

  6. 2000 Baia Mare cyanide spill - Wikipedia

    en.wikipedia.org/wiki/2000_Baia_Mare_cyanide_spill

    The SomeČ™ flows into the Tisza, Hungary's second largest river, which then flows into the Danube. The spill contaminated the drinking supplies of over 2.5 million Hungarians. [1] In addition to cyanide, heavy metals were also washed into the river and had a long-lasting negative impact on the environment. [1]

  7. Daylighting (streams) - Wikipedia

    en.wikipedia.org/wiki/Daylighting_(streams)

    More than four miles (6 km) of trail are maintained by neighborhood volunteers who put in 4,000 hours of work in 2003, for example. The creek waters are pretty in their impressively restored settings, but the watershed is the surrounding neighborhoods and streets, laced with petrochemicals, pesticides, fertilizers, wandering pets, and such.

  8. Tectonic uplift - Wikipedia

    en.wikipedia.org/wiki/Tectonic_uplift

    Tectonic uplift results in denudation (processes that wear away the earth's surface) by raising buried rocks closer to the surface. This process can redistribute large loads from an elevated region to a topographically lower area as well – thus promoting an isostatic response in the region of denudation (which can cause local bedrock uplift).

  9. Nonpoint source water pollution regulations in the United ...

    en.wikipedia.org/wiki/Nonpoint_source_water...

    Nonpoint source (NPS) water pollution regulations are environmental regulations that restrict or limit water pollution from diffuse or nonpoint effluent sources such as polluted runoff from agricultural areas in a river catchments or wind-borne debris blowing out to sea. In the United States, governments have taken a number of legal and ...