Sökning: "plot level forest variables"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden plot level forest variables.

1. 1. Insamling av skogliga data med applikationen Arboreal Skog : en studie om mätprecision, noggrannhet och effektivitet

   Uppsats för yrkesexamina på avancerad nivå, SLU/Department of Forest Biomaterials and Technology (from 131204)

   Författare :Lisa Lindberg; [2020]
   Nyckelord :skogsinventering; förstärkt verklighet; skogsteknologi; mätfel; skogsuppskattning;

   Sammanfattning : Skogsinventering kräver en del utrustning i fält där klave, höjdmätare och måttband är vanligt förekommande instrument. Med applikationen Arboreal skog kan skogs- uppskattning istället ske med mobiltelefonen som verktyg vid provyteinventering. LÄS MER

3. 2. Ecological and Edaphic Correlations of Soil Invertebrate Community Structure in Dry Upland Forests of Eastern Africa

   Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

   Författare :Karl Mauritsson; [2018]
   Nyckelord :Natural forests; plantation forests; Brachylaena-Croton forest; Cupressus lusitanica; Eucalyptus paniculata; exotic species; biodiversity; soil invertebrates; Berlese-Tullgren funnel; vertical structure; vegetation cover; vegetation density; litter quality; edaphic factors; soil pH; soil temperature; soil moisture; ANOVA; Multiple Linear Regression; Akaike’s Information Criterion;

   Sammanfattning : Natural forests are characterised by great vegetation diversity and create habitats for a major part of Earth’s terrestrial organisms. Plantation forests, which are mainly composed of a few genera of fast-growing trees, constitute an increasing fraction of global forests, but they only partly compensate for loss of area, habitat and ecological functions in natural forests. LÄS MER

4. 3. Comparison of multi-temporal and multispectral Sentinel-2 and Unmanned Aerial Vehicle imagery for crop type mapping

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

   Författare :Stephania Zabala Ramos; [2017]
   Nyckelord :classification; Random Forest; precision agriculture; UAV; remote sensing; Micasense; GEM; Earth and Environmental Sciences;

   Sammanfattning : Precision Agriculture aims to maximize crop production and the efficiency of land use to meet the increased demand for food while minimizing environmental impact and economic cost of food production. Crop type maps are needed for Precision Agriculture applications and remote sensing techniques are an efficient way to produce this information. LÄS MER

5. 4. Inter- and Intra-specific variability in functional traits of seedlings planted in successional tropical dry forest

   Master-uppsats, SLU/Southern Swedish Forest Research Centre

   Författare :Stina Söderlund; [2016]
   Nyckelord :functional traits; leaf traits; restoration; stem traits; tropical Dry Forests;

   Sammanfattning : The dry tropical forests are among the most threatened ecosystems in the world; they have been degraded and removed due to commercial values and cattle ranges. Restoration projects have gained global importance, including in Costa Rica where large restoration efforts have been started since 1970s. LÄS MER

7. 5. Performance of tree stem isolation algorithms for terrestrial laser scanning point clouds

   Master-uppsats, SLU/Southern Swedish Forest Research Centre

   Författare :Tiago De Conto; [2016]
   Nyckelord :LiDAR; cylinder circle fit; taper; tropical and boreal tree species; robust estimation;

   Sammanfattning : LiDAR sensors present increasing popularity in the Forestry sector, due to its capability of acquiring high resolution three dimensional data of the forest, useful to a variety of applications. Terrestrial Laser Scanning (TLS) consists of a way to collect large amounts of forest data at the plot level, making further 3D modelling and tree reconstruction possible, thus allowing foresters to extract dendrometric variables with high accuracy from those point clouds. LÄS MER