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  2. Water scarcity in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_scarcity_in_the...

    Water scarcity poses a threat to ecosystems and biodiversity, primarily through its impact on aquatic habitats, rivers, wetlands, and lakes. [3] Decreased water flows and the drying of water bodies disrupt the delicate balance of ecosystems, affecting a range of species including fish, amphibians, and water-dependent plants, experience habitat loss and fragmentation, affecting their ...

  3. Soil and Water Assessment Tool - Wikipedia

    en.wikipedia.org/wiki/Soil_and_Water_Assessment_Tool

    Soil and Water Assessment Tool (SWAT) is a free and open source hydrology model and GIS computer simulation sponsored by the USDA. SWAT is a well known geographic hydrological model in use by many universities and government agencies around the world, and integrates with commercial products like ArcGIS .

  4. Water scarcity - Wikipedia

    en.wikipedia.org/wiki/Water_scarcity

    Map of global water stress (a symptom of water scarcity) in 2019. Water stress is the ratio of water use relative to water availability and is therefore a demand-driven scarcity. [1] Water scarcity (closely related to water stress or water crisis) is the lack of fresh water resources to meet the standard water demand. There are two types of ...

  5. Water stress and urbanization - Wikipedia

    en.wikipedia.org/wiki/Water_stress_and_urbanization

    Water stress is increasingly affecting urbanization. Water stress arises through slum development, anarchic construction, water scarcity, the absence of financial structures, the absence of basic structures, the absence of infrastructure such as roads, bridges, sidewalks, signs, markets, schools, etc., can sometimes hinder the productivity of certain cities.

  6. Category:Water scarcity - Wikipedia

    en.wikipedia.org/wiki/Category:Water_scarcity

    Water scarcity in the United States This page was last edited on 24 October 2021, at 10:25 (UTC). Text is available under the Creative ... Code of Conduct;

  7. ArcGIS - Wikipedia

    en.wikipedia.org/wiki/ArcGIS

    ArcGIS is a family of client, server and online geographic information system (GIS) software developed and maintained by Esri. ArcGIS was first released in 1982 as ARC/INFO, a command line-based GIS. ARC/INFO was later merged into ArcGIS Desktop, which was eventually superseded by ArcGIS Pro in 2015. [8]

  8. List of ecoregions in the United States (EPA) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology , physiography , vegetation , climate , soils , land use , wildlife distributions, and hydrology .

  9. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]