Essays about: "geography"

Showing result 1 - 5 of 722 essays containing the word geography.

  1. 1. Dynamics of net primary production and food availability in the aftermath of the 2004 and 2007 desert locust outbreaks in Niger and Yemen

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Emma Bylund; [2021]
    Keywords : geography; GIS; desert locust outbreak; NPP; food availability; livelihood zones; Earth and Environmental Sciences;

    Abstract : The knowledge of desert locust plagues goes back to biblical times but it is just as relevant in 2020 with an ongoing outbreak in East Africa and the Middle East. The locusts pose a threat to agriculture, and by extent food availability, due to their high appetite, diverse diet and ability to migrate long distances in large swarms. READ MORE

  2. 2. Remote Sensing Based Pre-Season Yellow Rust Early Warning in Oromia, Ethiopia

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Chinatsu Endo; [2021]
    Keywords : yellow rust; modeling; prediction; early warning; remote sensing; geography; geographical information systems; GIS; Agriculture and Food Sciences; Earth and Environmental Sciences;

    Abstract : Yellow rust (Puccinia striiformis f. sp. Tritici) is a crop disease caused by a fungus that regularly infects wheat and causes yield loss in Ethiopia. The disease has a significant impact on the country’s crop production, food security, health, and socioeconomic well-being. READ MORE

  3. 3. The intraspecific drought tolerance of Betula pendula Roth. : ecotypic aptitude as tree selection criteria for the urban landscape

    University essay from SLU/Department of Plant Breeding (from 130101)

    Author : Simon Hannus; [2021]
    Keywords : Betula pendula; clinal variation; drought tolerance; ecosystem services; ecotypes; potential evapotranspiration; turgor loss point; urban forestry; urban resilience; urban tree selection;

    Abstract : The ecosystem services provided by urban trees are substantial contributors to the quality of urban living, and their environmentally regulating capabilities are increasingly regarded as integral in order to efficiently secure urban resilience, by ameliorating the human and material impacts of extreme weather events. However, current trends of urban development presents challenges of how to preserve urban greenery ecosystem functioning, particularly in light of the ongoing climate change; which also has brought forth the importance of taxonomically diverse urban forests, to mitigate risks of catastrophic tree loss associated with these conditions. READ MORE

  4. 4. Using remote sensing and land abandonment as a proxy for long-term human out-migration. A Case Study: Al-Hassakeh Governorate, Syria

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Berit Mohr; [2021]
    Keywords : geography; GIS; remote sensing; Syria; vegetation indices; land abandonment; Earth and Environmental Sciences;

    Abstract : The topic of human migration and displacement has become more important in recent years and will continue to do so in the following decades. Voices become louder claiming that climate change is a driving factor for increased displacement and migration. READ MORE

  5. 5. Considering future precipitation in delineation locations for water storage systems - Case study Sri Lanka

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Kanchana Bandaranayake; [2021]
    Keywords : Geography; Geographical Information Systems; Physical Geography; Locating new water resources; Water scarcity; Consideration of climatic changes; Future precipitation; Pairwise comparison; Sri Lanka; Earth and Environmental Sciences;

    Abstract : Demand for the usable water is accumulating globally in parallel with the population growth and the industrial revolution. Nevertheless, availability and accessibility of the usable water is progressively subsiding due to many environmental and socio-economic reasons. READ MORE