Search for dissertations about: "Organic farming"

Showing result 21 - 25 of 48 swedish dissertations containing the words Organic farming.

  2. 21. Diversity of soil microbial communities: In the perspective of targeting functional genes

    Author : Lokeshwaran Manoharan; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Soil; metagenomics; sequence capture; microbial communities; functional diversity; taxonomic diversity;

    Abstract : Abstract Intensive land use in agriculture can lead to higher loss of biodiversity in soils and subsequently carbon due to tillage and application of pesticides and fertilizers. The microbial communities are pivotal to ecosystem processes in soil such as nutrient cycling, soil formation and plant productivity and thus are affected by land use. READ MORE

  4. 22. Biodiversity and biological control : effects of agricultural intensity at the farm and landscape scale

    Author : Camilla Winqvist; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Agricultural intensity on the local field or farm scale and on the regional landscape scale affects the organisms utilizing the arable landscape, and may affect ecosystem services and functions. This thesis examines how plants, birds, community composition of ground beetles, and biological control of cereal aphids are affected by local agricultural intensity, organic farming and the surrounding landscape in Sweden and across Europe. READ MORE

  5. 23. Essays on behavioral economics and policy design

    Author : Mónica Marcela Jaime Torres; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Spillover effects; Social information; Randomized evaluation; Social norms; Peer effects; Water utilities; Common Agricultural Policy; Micro-analysis of farm firms; Panel data models; Subsidy decoupling;

    Abstract : Chapter 1: Social norms and information diffusion in water-saving programs: Evidence from a randomized field experiment in Colombia This paper investigates spillover effects of a social information campaign aimed at encouraging residential water savings in Colombia. The campaign was organized as a randomized field experiment, consisting of monthly delivery of consumption reports, including normative messages, for one year. READ MORE

  6. 24. On new homes and green lands : Three microeconometric essays as if urban costs and rural sustainability mattered

    Author : Miquel Correa; Charlotta Mellander; Anna Nordén; Henri L. F. de Groot; Jönköping University; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : This thesis is structured as a compendium of three self-contained articles, all single-authored. In the first paper, I analyze the effect of a mortgage cap, a policy implemented as a macroeconomic prudential measure by the Swedish Financial Supervisory Authority in 2010, on the likelihood of the young adult population purchasing a house in Sweden. READ MORE

  7. 25. Soil microbial diversity in agriculture : Responses to land-use and extreme weather events

    Author : Katja Kozjek; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; agriculture; drought; soil microbial communities; taxonomic diversity; functional diversity;

    Abstract : Land-use intensification of agricultural soils and increased occurrence and intensity of extreme weather events like drought periods are two of the main threats responsible for soil biodiversity declines. These changes in soil biodiversity can alter ecosystem functions performed especially by soil microbial communities that could further contribute to those threats. READ MORE