Sökning: "tropikerna"

Visar resultat 1 - 5 av 21 uppsatser innehållade ordet tropikerna.

  1. 1. Biochar: a win-win-win solution for sustainable small-scale farming in Sweden?

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Malin Stensson; [2018]
    Nyckelord :Biochar; carbon; climate change; agriculture; resilience; yield; energy production; sustainable farming; sustainable agriculture; pyrolysis; syngas; bio-oil; Agriculture and Food Sciences; Earth and Environmental Sciences;

    Sammanfattning : Biochar is a recalcitrant carbon rich solid product widely praised for the ability to improve soil fertility and sequester carbon, thereby improving crop yields and mitigating climate change. In addition to this, gaseous by products from production can be combusted for energy. LÄS MER

  3. 2. Sötpotatisodling i Sverige : odlingsförutsättningar och odlingsteknik

    Kandidat-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Sara Hellgren; [2018]
    Nyckelord :sötpotatis; Ipomoea Batatas; odlingsförutsättningar; klimat; dagslängd; pluggplantor; sticklingar; växtföljd;

    Sammanfattning : Sötpotatis, Ipomoea Batatas, härstammar från tropikerna och växer bäst under hög ljusintensitet i ett varmt och fuktigt klimat. Det kalla klimatet är den största begränsningen för att odla sötpotatis i Sverige. Trots de låga temperaturerna är det inte omöjligt att få en lyckad söt-potatisskörd i Sverige. LÄS MER

  4. 3. Quasi-Biennial Oscillation och dess påverkan på klimatet i troposfären

    Kandidat-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Nordvall Oliver; [2018]
    Nyckelord :Quasi-Biennial Oscillation; QBO; Climate; Polar Vortex; ENSO; TC; Holton-Tan Effect; Quasi-Biennial Oscillation; QBO; Klimat; Polarvirvel; ENSO; TC; Holton-Tan Effect;

    Sammanfattning : The Quasi-Biennial Oscillation (QBO) is the strongest phenomena influencing the stratopheric (~15-50 km height) circulation over the equator. QBO has two phases of downward propagating easterly and westerly winds, which has a total period of approximately 28 months and the phase is defined by the wind direction between the airpressure 25-50 hPa, which is roughly at a height of 30 km. LÄS MER

  5. 4. Animal welfare assessment of dual-purpose cattle in Mexico : with focus on health and behaviour

    Master-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Linnea Edstam; [2016]
    Nyckelord :djurvälfärd; Welfare Quality®; dual-purpose; hållbarhet; Mexiko; mjölkkor; nötkreatur; extensiva system; välfärdsbedömning; hälsa; beteende;

    Sammanfattning : Chiapas is the poorest state of Mexico located southeast, with a hot and humid tropical climate and daily socio-economic challenges in rural conditions. The main cattle production system found is extensive dual-purpose production, producing both milk and meat. LÄS MER

  7. 5. Animal welfare in Mexican dual-purpose cattle herds in the tropics : with focus on feeding and housing

    Master-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Sofie Eriksson; [2016]
    Nyckelord :Dual-purpose; Welfare Quality®; assessment; body condition; sustainability; small-scale; Mexico; calf production; milk production;

    Sammanfattning : Chiapas is a state in the southeast of Mexico where the climate is tropical, both humid and dry. The predominant cattle production system found is dual-purpose, which on every productive cycle produces both milk and meat. LÄS MER