Sökning: "Above-ground biomass AGB"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Above-ground biomass AGB.

1. 1. Investigation of above-ground biomass with terrestrial laser scanning : A case study of Valls Hage in Gävle

   Magister-uppsats, Högskolan i Gävle/Samhällsbyggnad

   Författare :Mathias Billenberg; [2023]
   Nyckelord :TLS; tree species; QSM; AGB; volume; wood density; biomass; allometric; point cloud;

   Sammanfattning : The thesis investigates above-ground biomass (AGB) with terrestrial laser scanning (TLS) for estimating AGB in a study area in Valls Hage, Gävle. The study used TLS for field measurements to collect highly detailed point clouds of two tree species for AGB estimation and comparison against validation data. LÄS MER

3. 2. Advancing understanding of tropical forest carbon dynamics through improved allometric models for palms: A case study with Prestoea montana in Puerto

   Magister-uppsats, Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Paschalis Chatzopoulos; [2021]
   Nyckelord :Above ground biomass; allometry; Luquillo Forest Dynamics Plot; Palms;

   Sammanfattning : Tropical forests are major components of Earth’s carbon stocks, but their diversity and structural complexity pose major challenges for making accurate estimates of their above ground biomass (AGB). Palms, in particular, are prominent and unique components of many tropical forests that have anatomical and physiological differences from dicot trees which affect their height - diameter allometry and consequently, our ability to accurately estimate their AGB. LÄS MER

4. 3. Increased Drought and Fire Intensity Regimes Reduce the Ecological Resilience of Mediterranean Forests in the South-West Australian Floristic Region

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Shareen Sanders; [2020]
   Nyckelord :Allometric models; Above-ground biomass AGB ; drought; fire; disturbance; understorey; resilience; Mediterranean.;

   Sammanfattning : Future climate projections suggest an increase in average temperature as well as a decrease in average winter rainfall across the south-west Australian floristic region (SWAFR). These adverse future climatic conditions will amplify the intensity and frequency of disturbance events such as drought and fire. LÄS MER

5. 4. Above-ground biomass estimation in boreal productive forests using Sentinel-1 data

   Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

   Författare :David Roc Roc; [2019]
   Nyckelord :synthetic aperture radar SAR ; backscatter intensity; InSAR; interferometric coherence; LIDAR; above-ground biomass; forestry;

   Sammanfattning : Estimation of biomass has high importance for economic, ecologic and climatic reasons due to the multiple ecosystem services offered by forested landscapes. Measurements that are taken in the field incur personal and economic costs. Nevertheless, biomass surveying based on remote sensing techniques offer efficiency thanks to covering large areas. LÄS MER

7. 5. Quantification of a continuous-cover forest in Sweden using remote sensing techniques

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

   Författare :Johan Westin; [2015]
   Nyckelord :digital elevation model DEM ; land cover classification; selective thinning; Physical Geography and Ecosystem analysis; remote sensing; above-ground biomass; AGB; Earth and Environmental Sciences;

   Sammanfattning : Mapping and quantifying forest information about e.g. land cover, tree height and biomass has traditionally been a both time-consuming and labour-intensive part of forestry and forest research as field measurements typically are collected manually using handheld equipment. LÄS MER