Sökning: "organic agriculture"

Visar resultat 1 - 5 av 228 uppsatser innehållade orden organic agriculture.

  1. 1. Riparian buffer zones in agricultural landscapes : Their status today and their future as an ecological tool in Sweden

    Master-uppsats, Karlstads universitet

    Författare :Mikaela Ignatiou Hadjicharalambous; [2021]
    Nyckelord :Riparian buffer zones; agriculture lanscapes; ecological tool; streams; kantzoner; lantbrukslandskap; ekologisk vertyg; vattendrag;

    Sammanfattning : The application of intensive farming and cultivation practices, resulting in large-scale modification of the hydrology of streams and rivers and of the natural vegetation, has increased the need to find ways to mitigate the negative impact of this habitat degradation. Suitable design and creation of riparian buffer zones in agriculture areas, is by many considered the best remedial measure. LÄS MER

  2. 2. Nutrients and biota in a lake system before and after restoration; a data analysis of the Swedish eutrophication case study Växjösjön

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Cleo Bakker; [2021]
    Nyckelord :sustainable development; eutrophication; phosphorus; internal loading; aluminum; biomanipulation;

    Sammanfattning : Eutrophication has proven to be a fundamental ecological problem for lakes and other bodies of water all around the world. The process of eutrophication can be defined as a lake containing increasing concentrations of nutrients from external and/or internal input over time. LÄS MER

  3. 3. Values of quality in ‘natural’ wine production : the study of ‘natural’ wine in Germany

    Master-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Maximilian Hågård Brown; [2021]
    Nyckelord :‘natural’ Wine; alternative; conventions; quality; food; agriculture; sustainability; organic; biodynamic;

    Sammanfattning : The current food production system based on a globalized network of economic efficiency and productivity relies on resource intensive production methods that are often environmentally destructive and unsustainable. Therefore, a growing body of research seeks to understand how different alternative food networks (AFNs) are potentially shaping new approaches to agriculture and our relationship to food in order to combat the current environmental crisis. LÄS MER

  4. 4. Swedish Nitrogen Flows : A national budget of anthropogenically induced reactive nitrogen

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Vincent Lernbecher; [2021]
    Nyckelord :;

    Sammanfattning : Nitrogen is a fundamental element in all forms of life and a crucial component of our agricultural productivity and global food security. However, excess nitrogen caused by human activity poses a serious threat to the environment and human health. LÄS MER

  5. 5. The nutrient-color paradigm : A test based on a comperative analysis of lakes in four ecoregions in Sweden

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

    Författare :Viktoria Nordström; [2021]
    Nyckelord :;

    Sammanfattning : The nutrient-color paradigm explains lake productivity as a function of the concentrations of nutrients and colored dissolved organic matter (CDOM) in the water column.  Specifically, the paradigm predicts that primary production decreases with increasing concentrations of CDOM due to reduced light penetration, and increases with nitrogen or phosphorus concentration because these are typically the growth limiting elements for phytoplankton. LÄS MER