Sökning: "tropical areas"

Visar resultat 1 - 5 av 106 uppsatser innehållade orden tropical areas.

1. 1. Future climate suitability of shade trees in cocoa agroforestry systems in West Africa and shade tree diversity’s impact on farm microclimate : A Minor Field Study

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Jonna Halonen; [2023]
   Nyckelord :species distribution modeling; cocoa agroforestry; shade trees; West Africa; microclimate; distributionsmodell; kakaoskogslantbruk; skuggträd; Västafrika; mikroklimat;

   Sammanfattning : Shade trees’ implementation into cocoa agroforestry systems in tropical West Africa has proven to have a high potential in increasing farm resilience and mitigating climate change. However, no studies have yet examined the potential future climate suitability for shade trees in the region, which is important when deciding which shade trees to implement. LÄS MER

3. 2. Ecosystems Services in swidden agriculture in the Peruvian tropical Andes : the Kechwa-Lamas farm-forestry system

   Master-uppsats, SLU/Dept. of Urban and Rural Development

   Författare :Geannine Gisset Chabaneix Portocarrero; [2023]
   Nyckelord :swidden agriculture; ecosystem services; Peru; Amazon;

   Sammanfattning : In the Amazon, life supporting services are importantly associated to forest areas. Nevertheless, the connection of ecosystem services to agricultural systems it is also of great importance, because agriculture is one of the most important causes of degradation and loss of these areas. LÄS MER

4. 3. Reliable Detection of Water Areas in Multispectral Drone Imagery : A faster region-based CNN model for accurately identifying the location of small-scale standing water bodies

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Shengyao Shangguan; [2023]
   Nyckelord :Water Detection; Faster region-based convolutional neural networks; Multiple images; Convolutional neural networks; Random Forest; Vattendetektering; Snabbare regionbaserade konvolutionella neurala nätverk; Flera bilder; Konvolutionella neurala nätverk; Random Forest;

   Sammanfattning : Dengue and Zika are two arboviral viruses that affect a significant portion of the world population. The principal vector species of both viruses are Aedes aegypti and Aedes albopictus mosquitoes. They breed in very slow flowing or standing pools of water. LÄS MER

5. 4. The Ecological and Anthropogenic Impacts of fishing gear in a tropical system : How the size of Spotted Rose Snapper (Lutjanus guttatus) and the ratio of target catch, is influenced by approved fishing gear within a marine area of responsible fishing in the South-Western Gulf of Nicoya, Costa Rica.

   Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

   Författare :Alfred Eriksson; [2023]
   Nyckelord :Overfishing; overexploitation; Spotted Rose Snapper; Lutjanus guttatus; Gulf of Nicoya; Costa Rica; marine protected areas; artisinal fishermen; bycatch; Costa Rican Institute of Fisheries and Aquaculture; incopesca; fishing gear; longlines;

   Sammanfattning : The oceans are essential for humanity, yet these systems continue to be degraded and suffer from pollution, habitat destruction and overexploitation. The Costa Rican Gulf of Nicoya is a productive gulf that is fished by both large-scale industrial fisheries and small-scale artisanal fishermen. LÄS MER

7. 5. Usability of Sentinel-1 C-band VV and VH SAR data for the detection of flooded oil palm

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

   Författare :Sarah Lee Sienaert; [2023]
   Nyckelord :Geography; GIS; Sentinel-1; SAR; C-band; VV; VH; Oil Palm; Flood; Earth and Environmental Sciences;

   Sammanfattning : Flooding in oil palm plantations in Southeast Asia is a common problem. The oil palm’s habitable range is restricted to lowland equatorial areas, and the high rainfall and degraded landscapes associated with oil palm cultivation leaves oil palm prone to flooding. LÄS MER