Search for dissertations about: "Sahel"

Showing result 11 - 15 of 21 swedish dissertations containing the word Sahel.

  2. 11. Satellite remote sensing of primary production in semi-arid Africa

    Author : Martin Sjöström; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; remote sensing; primary production; vegetation index; savanna; grassland;

    Abstract : With the challenges Africa faces with respect to the predicted warming due to climate change, the continents role in the global carbon cycle has been increasingly recognized. Earth observing satellites have played a significant role in the study of vegetation, particularly in Africa where climate stations are sparse. READ MORE

  4. 12. Benefits from ecosystem services in Sahelian village landscapes

    Author : Hanna Sinare; Line J Gordon; Elin Enfors Kautsky; Lowe Börjeson; Jennie Barron; Berta Martín-López; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; agroforestry; Burkina Faso; ecosystem services assessment; landscape change; livelihoods; smallholder agriculture; social-ecological system; West Africa; naturresurshushållning; Natural Resources Management;

    Abstract : Rural people in the Sahel derive multiple benefits from local ecosystem services on a daily basis. At the same time, a large proportion of the population lives in multidimensional poverty. READ MORE

  5. 13. Pathways to future cropland : Assessing uncertainties in socio-economic processes by applying a global land-use model

    Author : Kerstin Engstrom; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; land-use and land cover change; socio-economic modelling; scenarios; uncertainties;

    Abstract : Global agricultural production almost tripled within the last five decades. The production increase wasbased on expanding cropland and pastures, as well as the intensification of agriculture, including increased use ofhigh yielding crop varieties, machinery, irrigation, artificial fertilisers, and pesticides. READ MORE

  6. 14. On-farm agrohydrological analysis of the Sahelian yield crisis : rainfall partitioning, soil nutrients and water use efficiency of pearl millet

    Author : Johan Rockström; Jim Wallace; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Natural Resources Management; naturresurshushållning;

    Abstract : Sub-Saharan Africa is presently experiencing a steadily aggravated food security crisis. This crisis is a result of a rapidly growing population combined with insignificant yield increases of the major cereal crops maize, millet and sorghum, during the last decades. READ MORE

  7. 15. Understanding West African Monsoon Variability : Insights from Paleoclimate Modelling of Past Warm Climates

    Author : Ellen Berntell; Qiong Zhang; Alessandra Giannini; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; West African Monsoon; Monsoon Variability; Paleoclimate; Climate modelling; naturgeografi; Physical Geography;

    Abstract : The Sahel, a water-vulnerable region in West Africa, relies heavily on rainfed agriculture. The region experienced pronounced droughts during the 20th Century, emphasising the socio-economic importance of understanding the drivers of the rainfall variability. READ MORE