Sökning: "floodplains"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet floodplains.

  1. 1. Resilient Landscapes: socio-environmental dynamics in the Shashi-Limpopo Basin, southern Zimbabwe c. AD 800 to the present

    Författare :Munyaradze Manyanga; Paul Sinclair; Alinah Segobye; Uppsala universitet; []
    Nyckelord :Archaeology; Shashi-Limpopo Basin; landscapes; perceptions; floodplains; wetlands; drylands; ecology; socio-political complexity; local knowledge; climate change; seasonal variability; resilience; southern Africa; Arkeologi; arkeologi; Archaeology;

    Sammanfattning : The general perception today is that the Shashi-Limpopo Basin in southern Africa is hot and dry and not conducive to human habitation. Today there is no doubt that the Shashi-Limpopo Basin has been home to many communities throughout the pre-historical period. LÄS MER

  3. 2. The use of global data to uncover how humans shape flood and drought risk

    Författare :Sara Lindersson; Giuliano Di Baldassarre; Johanna Mård; Luigia Brandimarte; Brett Sanders; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; natural hazards; hydrological disasters; environmental geography; global geospatial data; international databases; disaster losses; disaster consequences; water management; dams and reservoirs; floodplains; hydrological drought; social vulnerability; economic inequality; Anthropocene; Geovetenskap med inriktning mot miljöanalys; Earth Science with specialization in Environmental Analysis;

    Sammanfattning : The human consequences of flood and drought disasters are widespread and detrimental. Large-scale studies, drawing on global geodata products and international databases, can systematically examine how anthropogenic megatrends shape disaster risk and test the generalisability of findings from other scientific methodologies. LÄS MER

  4. 3. Floodplain remediation in agricultural streams : improved process understanding for reduced eutrophication

    Författare :Lukas Hallberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Anthropogenically modified headwater streams are key pathways for high nutrient and sediment loads from agriculture, sustaining eutrophication and poor water quality in downstream aquatic ecosystems. To address this challenge, stream mitigation strategies are required that complement in-field measures, to intercept internal pollutant loading in streams. LÄS MER

  5. 4. Long Term Studies of Insect Abundances in Temporary Wetlands in Relation to Hydrology, Predation and Bti

    Författare :Thomas Persson Vinnersten; Jan O Lundström; Örjan Östman; William Walton; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; floodwater mosquitoes; mosquito control; predation; aquatic insects;

    Sammanfattning : Long-term insect abundances have been studied to investigate factors structuring the insect communities of the temporary wetlands around the River Dalälven floodplain. In the wet meadows and swamps in the River Dalälven floodplains recurrent floods are the ultimate prerequisite for high production of floodwater mosquitoes. LÄS MER

  7. 5. The origin and fate of sediment organic carbon in tropical reservoirs

    Författare :Anastasija Isidorova; Sebastian Sobek; Rafael Marcé; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; methane; carbon burial; tropical reservoirs; sediment; carbon cycle; limnology; Biology with specialization in Limnology; Biologi med inriktning mot limnologi;

    Sammanfattning : Recently, the construction of reservoirs has boomed, particularly in the tropics, but the impact of reservoirs on the global carbon cycle is not evident. Reservoirs accumulate sediments that simultaneously bury organic carbon (OC) and thus act as a C sink, and also produce methane (CH4) and thus emit a strong greenhouse gas. LÄS MER