Sökning: "legacy nitrogen effect"

Hittade 4 uppsatser innehållade orden legacy nitrogen effect.

  1. 1. Forest fertilization does not cause any long-term effects on tree growth or vegetation composition

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Yixian Chen; [2023]
    Nyckelord :density; ground vegetation; height; stem radial growth; legacy nitrogen effect; soil total N and C N ratio; tree;

    Sammanfattning : Forest fertilization is considered one of the most effective management options to improve forest productivity. In Fennoscandia, nitrogen (N) fertilization has been practiced for over 50 years and is normally added in the form of granules of NH4NO3 at least 15 years prior to the final harvest. LÄS MER

  3. 2. Nitrogen legacies in agricultural catchments : an analysis of 170 years of nitrogen legacies data in four Swedish agricultural catchments

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Laura-Ainhoa Prischl; [2023]
    Nyckelord :nitrogen mass balance; nitrogen surplus; land use trajectories; hysteresis effect; water quality; agriculture; nitrogen surplus; land use trajectories; hysteresis effect; water quality; agriculture;

    Sammanfattning : Despite the enforcement of legislation and application of measures, nitrogen (N) levels continue to be high in streams. One of the reasons for the low N reduction, is the legacy accumulation of N. LÄS MER

  4. 3. Grazing Legacy Influence Nutrient Content and Dry Matter Digestibility of Five Reindeer Food Plants

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

    Författare :Oleksiy Hronskiy; [2020]
    Nyckelord :Nutrient content; N and C; reindeer; grazing; HMGs; tundra ecosystems;

    Sammanfattning : Herbivores have a significant role in tundra ecosystem composition and processes. They can cause changes of vegetation composition and nutrient content that result in altered palatability of the vegetation and food availability for herbivores. LÄS MER

  5. 4. The legacy of the mill : a metal polluted forest soil in Gusum

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Hanna Almqvist ; [2010]
    Nyckelord :Gusum; copper; zinc; MicroResp; brass; contaminated soil;

    Sammanfattning : Soils in a metal contaminated site on Stångberget in Gusum in southeastSweden were investigated and compared to relatively unaffected soils a fewkilometres away. Pollution came from historical release of untreated flue gasesfrom a brass mill. LÄS MER