Sökning: "desertification"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet desertification.

  1. 1. The negotiable desert : Expert knowledge in the negotiations of the Convention to Combat Desertification

    Författare :Elisabet Corell; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Convention to Combat Desertification CCD ; desertification; expertise; influence; international environmental negotiations; International Panel of Experts on Desertification IPED ; local knowledge; non-governmental organizations NCOs ; non-state actors; science and politics; scientific advisers; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : As the awareness of environmental problems increases, so too do the number of international rules and regulations to prevent them. To set up new rules, decision-makers need knowledge about the environmental issues addressed and therefore often consult experts. LÄS MER

  3. 2. An evaluation of solar powered irrigation as carbon offset projects

    Författare :Alexander Olsson; Jinyue Yan; Björn Frostell; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbon offset; carbon sequestration; clean development mechanism; climate change adaptation; desertification; solar power water pumping; Chemical Engineering; Kemiteknik;

    Sammanfattning : Carbon offsets have been developed as one tool to incentivise investments by developed nations in climate change mitigation activities in developing countries. The carbon offsets can be used towards the countries’ own mitigation targets but are also meant to benefit developing countries by providing a pathway to clean development. LÄS MER

  4. 3. An Integrated Study of Desertification

    Författare :Lennart Olsson; LUCSUS; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 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; 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

  7. 5. Mapping Primary Production for the West African Sahel with Satellite Data

    Författare :Jonathan Seaquist; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical geography; Sahel; CENTURY; Monte Carlo; GPP; transpiration; LUE; CLAVR; PAR; compositing; MVC; geostatistics; noise; NDVI; NOAA AVHRR; geomorphology; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Sammanfattning : A light Use Efficiency (LUE) model is developed that allows the mapping of total growing season Gross Primary Production (GPP) for the West African Sahel, using the Normalized Difference Vegetation Index (NDVI) together with other data. Image quality may be poor in monthly NDVI maximum value composites as shown by an improved geostatistical noise estimation technique. LÄS MER