Sökning: "Arid Environment"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden Arid Environment.

  1. 11. Forests and Water - Friends or Foes? : Hydrological implications of deforestation and land degradation in semi-arid Tanzania

    Författare :Klas Sandström; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Water in nature and society; Vatten i natur och samhälle;

    Sammanfattning : This is a study of landscape hydrology; a type of hydrology which focuses on large sca1e implications of hydrologica1 processes as a function of hydroclimate, surface and sub-surface land properties, and the effect of human activities. The focus of the thesis is groundwater recharge and dry season flow following deforestation and land degradation. LÄS MER

  2. 12. Primary Production in African Drylands : Quantifying Supply and Demand Using Earth Observation and Socio-ecological Data

    Författare :Abdulhakim Abdi; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Net primary production; Africa; Drylands; Coupled human and natural systems; Human-Environment Relations; Food security; Earth observation; Remote Sensing;

    Sammanfattning : The human-environment connection in the mostly rural drylands of sub-Saharan Africa forms a complex, interlinked system that provides ecosystem services. This system is susceptible to climatic variability that impacts the supply of its products, and high population growth, which impacts the demand for these products. LÄS MER

  3. 13. Past environment and sediment dynamics in the Black Sea-Caspian Sea region from Southern Russian loess sequences

    Författare :Chiara Amalia Költringer; Thomas Stevens; Bjarne Almqvist; Ian Snowball; Kathryn Fitzsimmons; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Loess deposits are excellent past climate and environment archives and contain records of aeolian mineral dust accumulation. Loess deposits stretch across Eurasia and sequences along the Lower Volga in the Northern Caspian lowland in the South East European Plain represent a key link between European and Asian loess. LÄS MER

  4. 14. Land-use and land-cover dynamics and rural livelihood perspectives, in the semi-arid areas of Central Rift Valley of Ethiopia

    Författare :Efrem Garedew; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Global environmental changes in climate, land-use and bio-diversity are increasingly on top of scientific and political agenda. The impacts of climate change are manifested on all dimensions of food security: availability, accessibility, utilization and stability. LÄS MER

  5. 15. A QUEST FOR ENVIRONMENTAL SOVEREIGNTY : Chicana/o Literary Experiences of Water (Mis)Management and Environmental Degradation in the US Southwest

    Författare :María Isabel Perez-Ramos; Sverker Sörlin; Marco Armiero; Joni Adamson; Maria Herrera Sobek; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; Environmental humanities; ecocriticism; environmental history; comparative literature; U.S. Southwest; Chicana o; subaltern literature; environmental justice; water; political ecology; postcoloniality; decoloniality.; Miljöhumaniora; ekokritik; miljöhistoria; litteraturhistoria; sydvästra USA; Chicana o; subaltern litteratur; miljörättvisa; vatten; politisk ekologi; postkolonialitet; dekolonialitet.; Historiska studier av teknik; vetenskap och miljö; History of Science; Technology and Environment;

    Sammanfattning : The U.S. Southwest is a semi-arid region affected by numerous environmental problems. Chicana/o communities have been directly affected by such problems, especially ever since the region was annexed from Mexico by the United States in the mid-nineteenth century. LÄS MER