Sökning: "dry lands"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden dry lands.

  1. 1. East African Hydropatriarchies : An analysis of changing waterscapes in smallholder irrigation farming

    Författare :Martina Angela Caretta; Lowe Börjeson; Margreet Zwarteveen; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; smallholder irrigation farming; local gender contract; landesque capital; common property regimes; dry lands; feminist epistemology; member checking; Kenya; Tanzania; Geography with Emphasis on Human Geography; geografi med kulturgeografisk inriktning;

    Sammanfattning : This thesis examines the local waterscapes of two smallholder irrigation farming systems in the dry lands of East African in a context of socio-ecological changes. It focuses on three aspects: institutional arrangements, gender relations and landscape investments. LÄS MER

  2. 2. The role of scattered trees in soil water dynamics of pastures and agricultural lands in the Central American Tropics

    Författare :Laura Benegas; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Trees affect the water cycle, and thus the amount of groundwater and surface water, through their effects upon the local microclimate and edaphic properties; in particular through rainfall interception, evapotranspiration, and infiltration. Empirical data about the effects of scattered trees upon hydrological processes have been largely lacking, especially for tropical regions. LÄS MER

  3. 3. Novel Moderate Halophiles: Application of Halomonas boliviensis in Biopolyester Production

    Författare :Jorge Quillaguaman; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; biopolymers; Polymer technology; poly b-hydroxybutyrate accumulation; moderate halophile; Halomonas boliviensis; Chromohalobacter sarecencis; Polymerteknik; Bioteknik;

    Sammanfattning : The south-west Andean region of Bolivia has vast landscapes comprising salt deserts and dry lands interspersed with a number of saline lakes. Much of this region lies above 4000 m above sea level that allows the survival of limited and unique flora and fauna. LÄS MER

  4. 4. Land degradation and mitigation in northern China. Evaluated from the biological production

    Författare :Micael Runnström; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; marklära; geomorfologi; Fysisk geografi; climatology; kartografi; klimatologi; cartography; pedology; desertification; China; GPP; Mu Us; LUE-model; overgrazing; Physical geography; geomorphology;

    Sammanfattning : Land degradation is commonly perceived to be severe in many parts of semi arid China. The transition towards market economy since the 1978 reforms, have set marginal dry lands under added pressure in the form of increased livestock numbers and expanding cultivation on erosive soils. LÄS MER

  5. 5. Improving supply chains for logging residues and small-diameter trees in Sweden

    Författare :Raul Fernandez Lacruz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Forestry is expected to play a key enabling role in the transition towards a low-carbon, sustainable, and circular biomass-based economy in Europe. This will increase demand for forest biomass as a source of energy and traditional and new wood-based products. LÄS MER