Sökning: "Carbon dioxide gradient"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden Carbon dioxide gradient.

  1. 1. SOIL GROSS NITROGEN MINERALISATION AND FOREST GROWTH IN FOUR HEMIBOREAL FOREST STANDS IN SOUTHWEST SWEDEN

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Linnéa Eriksson; [2023-04-20]
    Nyckelord :soil C:N; forest production; 15N isotope dilution; gross N mineralisation; ammonium; soil carbon; soil nitrogen; root exudates; stoichiometric decomposition; boreal forests; priming; microbial C limitation;

    Sammanfattning : Boreal and temperate forests together make up the largest terrestrial net C sink in the world. They take up carbon dioxide (CO2) from the atmosphere and store it in plant biomass and soil as they grow, making them crucial in mitigating global climate change. LÄS MER

  3. 2. Långsiktig torvnedbrytning för olika vegetationstyper på dikad skogsmark

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Carl Carlsson; Sofie Jönsson; [2023]
    Nyckelord :växthusgaser; torvmark; dikning;

    Sammanfattning : Skogsklädda torvmarker i Sverige dikades i stor utsträckning mellan 1930- och 1980-talen i syfte att höja virkesproduktionen. Till följd av klimatproblemet har intresset för dikade torvmarkers bidrag till växthusgasutsläppen ökat under de senaste decennierna. LÄS MER

  4. 3. Soil Carbon Stocks in Old Growth Forest : Drivers of variability in soil organic carbon stocks in old growth boreal forests

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

    Författare :Elis Ingvarsson; [2023]
    Nyckelord :old growth forest; boreal; soil organic carbon stocks; climate gradient;

    Sammanfattning : Soil organic carbon (SOC) is the largest carbon pool in terrestrial ecosystems, which plays an important role in climate change by regulating atmospheric carbon dioxide. Sweden’s forest management has led to a decrease in old growth forests. This change in land use can affect SOC levels in these forests. LÄS MER

  5. 4. Investigating the Impact of Air Pollution, Meteorology, and Human Mobility on Excess Deaths during COVID-19 in Quito : A Correlation, Regression, Machine Learning, and Granger Causality Analysis

    Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Waleed Tariq; Sehrish Naqvi; [2023]
    Nyckelord :Granger Causality; Gradient Boosting Machine; Lasso Regression; Excess Deaths; Correlation Analysis; Stationarity;

    Sammanfattning : Air pollution and meteorological conditions impact COVID-19 mortality rates. This research studied Quito, Ecuador, using Granger causality tests and regression models to investigate the relationship between pollutants, meteorological variables, human mobility, and excess deaths. LÄS MER

  7. 5. The Effect of Temperature and Fungal:Bacterial Ratio on Kombucha Culture Fermentation

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Johanna Forsvall; [2021]
    Nyckelord :Kombucha; Kombucha culture; Fermentation; Food engineering; Technology and Engineering;

    Sammanfattning : The fermented tea beverage kombucha is a traditional drink that has been consumed for thousands of years in Asia. Over the past decades, it has gained greatly in popularity amongst consumers and researchers also in the rest of the world. LÄS MER