Essays about: "terrestrial ecosystems"

Showing result 21 - 25 of 70 essays containing the words terrestrial ecosystems.

  1. 21. The role of agricultural drainage in controlling the effectiveness of two-stage ditches in Sweden

    University essay from SLU/Dept. of Soil and Environment

    Author : Neerajaa Nagarajan; [2021]
    Keywords : Subsurface drainage; Absorbance flourescence spectroscopy; Suspended sediments; NO3N; NH4N; PO4P; TP values; DOM indices;

    Abstract : Increased agricultural activities are causing eutrophication in downstream water bodies. To mitigate nutrient leaching from cropland, various in-field and edge-of-field practices have been implemented. READ MORE

  3. 22. End-of-Life of Heavy Duty Vehicles

    University essay from KTH/Energiteknik

    Author : Asfand Yar Munir; [2021]
    Keywords : ;

    Abstract : There are limited studies which focus on the End of Life (EOL) of Heavy-Duty Vehicles (HDV). Also, there is no legislation which deals in the collection and recycling of the EOL of HDV inthe EU. This has necessitated the need of EOL study of HDV in the EU. READ MORE

  4. 23. Search for Preserved Methanogenic Organisms in Ophiolitic Rocks through Lipid Biomarker Analysis – Implications for Astrobiological Explorations

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Alexandra Zetterlind; [2020]
    Keywords : ophiolite; deep biosphere; archaea; methanogenesis; chemosynthesis; serpentinite-hosted ecosystems; lipid biomarkers; astrobiology; ofiolit; djupbiosfär; arkeér; metanogener; kemosyntes; serpentinit-drivna ekosystem; lipidbiomarkörer; astrobiologi;

    Abstract : Serpentinization is a metamorphic low-temperature geological process, involving a series of chemical reactions that hydrate ultramafic rocks into serpentines and other minerals such as magnetite and brucite. Moreover, the process produces heavily reducing and highly alkaline fluids together with molecular hydrogen (H2) and methane (CH4), which have the capacity to support chemosynthetic microbial life. READ MORE

  5. 24. Decreasing organic nitrogen concentrations in European water bodies - links to organic carbon trends and land cover

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alexis Cazorla; [2020]
    Keywords : geography; GIS; physical geography; organic nitrogen; organic carbon; land cover; eutrophication; Europe; Earth and Environmental Sciences;

    Abstract : European rivers experience increasing concentrations of total organic carbon (TOC) from terrestrial sources due to factors involving changes in land use, climate and soil acidity. However, low interest is given to the evolution of total organic nitrogen (TON) concentrations in surface waters, the links with TOC concentrations and the influence of the surrounding land cover on nutrient inputs. READ MORE

  6. 25. Impact of Carbon Sinks on Urban Heat Island Effects : Assessment Using Satellite Data in Water Scarce Region of the Thesis

    University essay from Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

    Author : Nadine Macauley; [2020]
    Keywords : Urban Heat Island; Carbon Sinks; Qatar; Satellite Remote Sensing; Al Bayt Stadium; Energy Systems; Energy Use; Sustainability; LST; Hot Arid Climate;

    Abstract : Urbanization modifies the thermal characteristics of the land and makes way for a succession of transformations in the urban environmental system. This phenomenon, known as Urban Heat Island (UHI), is characterized by elevated temperatures in urban areas that negatively impact on the quality of life and environment in urban areas including, increased emissions of Green House Gases (GHGs) and rising energy consumption. READ MORE