Search for dissertations about: "ARABLE LAND"

Showing result 21 - 25 of 68 swedish dissertations containing the words ARABLE LAND.

  2. 21. Impact of horse-keeping on phosphorus (P) concentrations in soil and water

    Author : Masud Parvage; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Agricultural sources contribute significantly to the high phosphorus (P) loads in water, causing eutrophication in many of Europe’s water bodies. Consequently, priority has been given to reducing P leakage from sources, including soils used for animal farming. READ MORE

  4. 22. Modelling climate change impacts on pesticide leaching : uncertainty and scenario analysis at field and regional scales

    Author : Karin Anna Steffens; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Climate change projections for Sweden indicate increases in both temperature and precipitation. In a warmer and wetter climate, weed and pest pressures are likely to increase, which might in turn trigger an increased use of pesticides. READ MORE

  5. 23. From fields to landscapes : effects of agricultural land use and landscape heterogeneity on farmland birds

    Author : Matthew Hiron; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Farmland biodiversity has declined because of agricultural intensification. Agri-environment schemes (AESs) seem to have limited effect in stopping and reversing declines. READ MORE

  6. 24. Plant species diversity in semi-natural grasslands. Effects of scale, landscape structure and habitat history

    Author : Triin Reitalu; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; habitat fragmentation; landscape diversity; habitat connectivity; historical maps; continuity; land-use history;

    Abstract : The thesis examines the impact of present and past landscape structure, habitat history and management on different aspects of present-day plant species diversity in fragmented semi-natural grasslands in Sweden and in Estonia. Species diversity was significantly associated with present and/or past grassland connectivity in the majority of the studies in the thesis. READ MORE

  7. 25. Plant community assembly and biodiversity: a spatio-temporal perspective

    Author : Oliver Purschke; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phylogenetic diversity; null model; life-history traits; land use history; landscape fragmentation; dispersal; functional diversity; semi-natural grasslands;

    Abstract : Biodiversity, the variety of life at all organisational levels from genes to ecosystems, affects ecosystem processes and therefore the goods and services ecosystems provide. More research is needed to provide new insights into biodiversity changes and the processes that drive these changes, in order to formulate effective policy and conservation measures to stop the ongoing biodiversity loss. READ MORE