Sökning: "Hydrological alteration"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Hydrological alteration.

  1. 1. Biodiversity and habitat conditions in reaches with high flow velocity along gradients in hydrological and geomorphological alteration : A study of six rivers in Sweden

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Anders Aalto; [2021]
    Nyckelord :Hydrology; Geomorphology; Biological variables; Human alteration;

    Sammanfattning : The vast majority of rivers in the developed world are affected by human alteration, which in turn negatively affects the species that rely on these highly diverse and species rich areas to survive. Homogenization of previously heterogenic areas due to a change in water discharge and the substrate availability in the rivers is often regarded as the main reason for the loss of species richness in rivers and the riparian zone. LÄS MER

  3. 2. Investigating eco-hydrological relationships between fishes and flow regimes in Spanish rivers

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Celia Ramos Sanchez; [2021]
    Nyckelord :Eco-hydrological relationships; Fish metrics; Hydrological metrics; Environmental flows; Hydrological alteration; Technology and Engineering;

    Sammanfattning : There is currently a need in Spain for monitoring the effects of the environmental flows. The use of eco-hydrological relationships to design both environmental flows regimes and the monitoring programs that track their effects on riverine ecosystems is highly recommended. LÄS MER

  4. 3. Geomorphology alteration effects over Kävlinge River Basin

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Erik Frias Olguin; [2020]
    Nyckelord :Kävlingeån; DEM; Flooding; Geomorphology; model; MIKE HYDRO; Technology and Engineering;

    Sammanfattning : This thesis focuses on the case study over the Kävlinge catchment located in the south of Sweden, and mainly in the Kävlinge river. This river, which is the mainstream of the catchment, has been subject to modifications due to agricultural activities. LÄS MER

  5. 4. Dynamiska flöden som restaureringsmetod : Hur förändras strandvegetationen med en säsongsanpassning av minimitappningen i den reglerade Juktån?

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :William Sidenbom; [2019]
    Nyckelord :riparian; restoration; riverine; e-flows;

    Sammanfattning : Regulation and alteration of streams and rivers have a long history and dams provide us with resources. It also degrades the ecosystems connected to them by cutting off transportation routes and changing the flow regime. Riparian ecosystems have evolved to the natural flow regimes, making them sensitive to hydrological alterations. LÄS MER

  7. 5. Changes in Hydrologic Regime to Balance Human and Environmental Requirements: a Case Study in the Långan River Basin, Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anton Smith; [2017]
    Nyckelord :Hydrological regime; Ecological flow; DHRAM; Water resource management; Hydrologisk regime; Ekologiska flöden; DHRAM; Vattenresursförvaltning;

    Sammanfattning : Dams and reservoirs play an important role in the Swedish energy system, and a large number of rivers are today regulated. How to combine the ecological and economic interests in the regulation of these rivers is a growing concern for stakeholders and authorities. LÄS MER