enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Human impact on the environment - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    The environmental impact of irrigation includes the changes in quantity and quality of soil and water as a result of irrigation and the ensuing effects on natural and social conditions at the tail-end and downstream of the irrigation scheme. The impacts stem from the changed hydrological conditions owing to the installation and operation of the ...

  3. Wetland conservation - Wikipedia

    en.wikipedia.org/wiki/Wetland_conservation

    Wetland vary widely in their salinity levels, climate zones, and surrounding geography and play a crucial role in maintaining biodiversity, ecosystem services, and support human communities. [1] Wetlands cover at least six percent of the Earth and have become a focal issue for conservation due to the ecosystem services they provide.

  4. Human impact on marine life - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_marine_life

    Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms.

  5. Marine coastal ecosystem - Wikipedia

    en.wikipedia.org/wiki/Marine_coastal_ecosystem

    Of these global tidal wetland losses and gains, 39% of losses and 14% of gains were attributed to direct human activities. [ 263 ] Approximately 40% of the global mangrove has been lost since the 1950's [ 264 ] with more than 9,736 km 2 of the world's mangroves continuing to be degraded in the 20 years period between 1996 and 2016. [ 265 ]

  6. Habitat destruction - Wikipedia

    en.wikipedia.org/wiki/Habitat_destruction

    Probably the most profound impact that habitat destruction has on people is the loss of many valuable ecosystem services. Habitat destruction has altered nitrogen, phosphorus, sulfur, and carbon cycles , which has increased the frequency and severity of acid rain , algal blooms , and fish kills in rivers and oceans and contributed tremendously ...

  7. Wetland conservation in the United States - Wikipedia

    en.wikipedia.org/wiki/Wetland_conservation_in...

    There are a number of government agencies in the United States that are in some way concerned with the protection of wetlands. The top five are the Army Corps of Engineers (ACoE), Natural Resources Conservation Service (NRCS), Fish and Wildlife Service (FWS), National Oceanic and Atmospheric Administration (NOAA), and the Environmental Protection Agency (EPA). [5]

  8. Riparian-zone restoration - Wikipedia

    en.wikipedia.org/wiki/Riparian-zone_restoration

    Conversely, mining activities in the floodplain can create favorable areas for the establishment of riparian vegetation (e.g., cottonwoods) along streams where natural recruitment processes have been impacted through other forms of human activity. [4] Mining for metals can impact riparian zones when toxic materials accumulate in sediments. [4]

  9. Freshwater marsh - Wikipedia

    en.wikipedia.org/wiki/Freshwater_marsh

    Wetlands have decreased by as much as 50% since 1900 and in some parts of the world by 90%. [19] [20] Inland wetlands, freshwater marshes making up about 20-25% of all freshwater wetlands globally, [21] have been decreasing approximately 1.2% each year throughout the last century (since 1900). [22] [23]