Search for dissertations about: "slash"

Showing result 1 - 5 of 10 swedish dissertations containing the word slash.

  2. 1. Biodiversity & Biofuel. Harvest of Logging Residue Affects Arthropods

    Author : Karolina Nittérus; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biodiversity; beetles; biofuel; Carabidae; Cerambycidae; Celeoptera; forestry; habitat; structure; logging residue; Lycosidae; microhabitat choice; slash; species compositin; species richness; spiders; structural comlexity; whole-tree harvest;

    Abstract : .... READ MORE

  4. 2. Hygroscopic Properties of Aerosols from Open-Air Burning and Controlled Combustion of Biomass

    Author : Jenny Rissler; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cloud condensation nuclei; H-TDMA; CCN; hygroscopic growth; Teknik; internal and external mixture; CLAIRE; SMOCC; Physics; Fysik; Environmental chemistry; Technological sciences; Miljökemi; tandem differential mobility analyzer; slash and burn; Amazon; Biomass burning; combustion; Fysicumarkivet A:2005:Rissler;

    Abstract : The major uncertainty in predicting the influence of human activities on global climate change is the effect of aerosols. Two physical properties of aerosols largely controlling their influence on climate are the particle number size distribution and the interaction of the particles with the surrounding water vapor. READ MORE

  5. 3. Vegetation and land-use in the Småland Uplands, southern Sweden, during the last 6000 years

    Author : Per Lagerås; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geologi; physical geography; Sweden; Geology; Småland Uplands; land-use history; pollen analysis; Holocene vegetation history; mineral magnetic analysis; AMS dating; clearance cairns; hay production; shifting cultivation; Picea migration; slash-and-burn cultivation; fysisk geografi;

    Abstract : Palaeoecological methods were applied to peat and sediment cores recovered from one bog (Bråtamossen) and two lakes (Avegöl and Femtingagölen) in the Småland Uplands, southern Sweden. The general aim was to reconstruct the landuse and vegetation history for the last 6000 years in this agriculturally marginal region. READ MORE

  6. 4. Environmental Effects of Agricultural Expansion in the Upper Amazon : A study of river basin geochemistry and hydrochemistry, and farmers' perceptions

    Author : Lina Lindell; Mats Åström; Marianne Henningsson; Pasi Peltola; Tommy Claesson; Michael E McClain; Linnéuniversitetet; []
    Keywords : tropical humid forest; deforestation; land-use change; slash-and-burn agriculture; spatial variation; vertical distribution; multielement analysis; sustainable development; rural livelihoods; bosque húmedo tropical; deforestación; cambios de uso de la tierra; agricultura de tala y quema; variabilidad espacial; distribución vertical; análisis multielemental; desarrollo sostenible; cambio climático; sustentos rurales; Miljövetenskap; Environmental Science;

    Abstract : In this thesis natural science is combined with environmental psychology in order to determine how deforestation and subsequent agricultural expansion in the Peruvian highland jungle has affected the natural environment and rural livelihoods. This region is part of one of the most biodiverse areas on Earth and is also exposed to high pressure from deforestation that threatens the ecosystems as well as the well-being of local populations. READ MORE

  7. 5. Aspects of heterogeneity : effects of clear-cutting and post-harvest extraction of bioenergy on plants in boreal forests

    Author : Marcus Åström; Christer Nilsson; Katherine Frego; Umeå universitet; []
    Keywords : aspect; clear-cutting; disturbance; habitat quality; liverworts; logging residues; mosses; resilience; slash; slope; topography;

    Abstract : Abstract. The objectives of this thesis are to evaluate (1) the influence of slope aspect on boreal plant responses to clear-cutting and (2) the effects of post-harvest extraction of bioenergy (logging residues or slash) on plant composition, richness and performance in clear-cuts. READ MORE