Sökning: "Slope aspect"

Visar resultat 21 - 25 av 47 uppsatser innehållade orden Slope aspect.

  1. 21. Water management for agriculture under a changing climate: case study of Nyagatare watershed in Rwanda

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Madeleine Green; [2019]
    Nyckelord :climate change; hydrological model; SWAT; CROPWAT; Nyagatare; Rwanda; marshland; watershed; climate model; irrigation; rice crop;

    Sammanfattning : Sub-Saharan Africa is today facing a big challenge regarding food deficiency and water scarcity due to climate change. One of these countries is Rwanda, a small landlocked country in the middle of Africa. Rwanda strongly depend on agriculture, both in the aspect of reducing poverty and hunger but also because their economy security depend on it. LÄS MER

  3. 22. Fjällbjörkmätarlarvers påverkan på fjällbjörkskog : en fjärranalysstudie om markvegetationsförhållanden i subalpin miljö

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Melvin Moon; [2018]
    Nyckelord :Fjärranalys; NDVI; fjällbjörkmätare; Abisko; fjällbjörkskog; Earth and Environmental Sciences;

    Sammanfattning : Since the mid-1950s, studies have frequently been conducted on couplings between geometrid moth outbreaks and mountain birch, though not nearly as much focus has been on connections between geometrid moth outbreaks and ground cover. Previous studies have shown that major outbreaks of Epirrita autumnata occur in 9 – 10-year cycles (Karlsson et al. LÄS MER

  4. 23. Periglacial and glacial landform mapping in the Las Veguitas catchment, Cordillera Frondal of the Andes (Argentina).

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Eirini Makopoulou; [2018]
    Nyckelord :Geomorphological map; thermokarst lakes; glaciers; GIS; Argentinian Andes; spatial and temporal analysis;

    Sammanfattning : The semi-arid and arid Andes of South America are characterized by large areas with glacial and periglacial environments. This study focusses on the distribution of glacial and periglacial landforms in the Las Veguitas catchment, Cordillera Frontal, Argentina. LÄS MER

  5. 24. Projecting invasive species using remote sensing and spatial explicit models

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Astrid Zimmermann; [2018]
    Nyckelord :Physical Geography; Ecosystem Analysis; Rosa rugosa; invasive species; aerial images; growth rate; modeling; cellular automata; Earth and Environmental Sciences;

    Sammanfattning : An evaluation of the current and previous Rosa rugosa growth on Kieler Ort, Germany, with the aim to predict the rose coverage in future, under consideration of environmental factors. Kieler Ort, a rather isolated island in the southwest Baltic Sea is representing a unique environment which is protected for its landscape, nature, flora and fauna and serves as a bird sanctuary. LÄS MER

  7. 25. Mobility, habitat selection and population connectivity of Lycaena helle in central Sweden : implications for conservation

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Hanna Modin; [2018]
    Nyckelord :Lycaena helle; violet copper; Lepidoptera; Lycaenidae; mobility; dispersal; resource selection function; habitat selection; connectivity; metapopulation; stepping stone;

    Sammanfattning : Lycaena helle is an endangered butterfly that is mainly threatened by habitat degradation and fragmentation. For all species with a fragmented distribution, knowledge about mobility, habitat requirements and connectivity is key to developing successful conservation strategies. LÄS MER