Essays about: ": boreal streams"

Showing result 6 - 10 of 46 essays containing the words : boreal streams.

  1. 6. Temporal Trends in Dissolved Inorganic Carbon in a Swedish Boreal Catchment

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Lukas Rehn; [2021]
    Keywords : Boreal catchments; carbon cycling; carbon dioxide; DIC; headwater streams; Krycklan Catchment Study; trend analysis;

    Abstract : Inland waters are important systems for transforming, storing and transporting carbon along the aquatic continuum, but also by emitting carbon dioxide (CO2) and methane (CH4) to the atmosphere. In light of the last decades observed increase in dissolved organic carbon (DOC) in many inland waters across the northern hemisphere, a logical question arise whether other aquatic carbon species display similar trends. READ MORE

  3. 7. Patterns and factors affecting brownification in a boreal river

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Emil Winqvist; [2021]
    Keywords : Bolmen; brownification; precipitation; discharge; sulfur deposition; land use; trend analysis; Technology and Engineering;

    Abstract : During the last decades a brownification of the lakes and streams in the northern hemisphere has been observed. The change has been attributed to an increase of organic content in the water, leached from the top soil layers, called humic substances. READ MORE

  4. 8. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Julia Iwan; [2021]
    Keywords : Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

    Abstract : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. READ MORE

  5. 9. Testing the influence of riparian buffer design on stream biodiversity following drought

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Rasmus Eriksson; [2021]
    Keywords : forestry; clear-cutting; riparian buffers; macroinvertebrates; drought;

    Abstract : Forestry is a major industry in Sweden and the most common method to harvest timber is to clear-cut large areas. Clear-cutting can alter multiple physical, chemical, and ecological characteristics of headwater streams. To minimize these effects, vegetated riparian ‘buffers zones’ are often spared along streams and lakes. READ MORE

  6. 10. Aspects of erosion of restored trout spawning beds in two streams in Northern Sweden

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Frida Michelle Granlund; [2021]
    Keywords : in-stream restoration; reproductive habitat; salmonids; passive integrated transponders tags PIT-tags ;

    Abstract : Many rivers and streams in northern Sweden have been channelized due to timber floating. This has severely degraded the spawning habitats for salmon and trout, and therefore a common action when restoring channelized rivers is to establish new spawning beds by adding gravel to the streambed. READ MORE