A5061006758- Forest ecology and management
- Tree-ring climate responses
- Solar Radiation and Photovoltaics
- Plant Water Relations and Carbon Dynamics
- solar cell performance optimization
- Photovoltaic System Optimization Techniques
- Lichen and fungal ecology
- Impact of Light on Environment and Health
- Bryophyte Studies and Records
- Remote Sensing and LiDAR Applications
- Soil Carbon and Nitrogen Dynamics
- Atmospheric Ozone and Climate
- Botany and Plant Ecology Studies
BOKU University
2013-2024
Tree growth depends on tree-intrinsic attributes, synecological interactions, atmospheric conditions and soil properties. While the influence of tree factors climate are analysed in detail many studies, effect properties is less investigated compensatory effects often not quantified. In this study, we use a comprehensive dataset 1659 increment cores from six common Central European species (Abies alba, Fagus sylvatica, Larix decidua, Picea abies, Pinus sylvestris, Quercus spp.) sampled at...
Rising temperatures and drier conditions due to climate change will force Alpine forests towards their ecological limits. For an informed decision on climate-smart tree species composition, we need area-wide information about the current future moisture regime in forest areas. this task, soil-vegetation-atmosphere transport (SVAT) models combination with digital mapping techniques have proven useful tools. However, depending selected algorithm (e.g. random - RF, generalized additive GAM,...
Abstract. The effect of contrails on global short-wave radiation (sum direct and downward diffuse solar radiation) energy gain was investigated. study performed during days with high contrail persistence focused situations where the were obstructing sun. Measurements cloudiness using a fish-eye camera, measurements short circuit current three different types photovoltaic (PV) modules at Kanzelhöhe Observatory (1540 m a.s.l.) time resolution 1 min over period year. results show that moving...
Silver fir (Abies alba) is a key forest tree species in Central Europe growing most commonly its mixtures with Fagus sylvatica and Picea abies. It also an important to dendrochronology due longevity, historic timber utilization, generally well-synchronized interannual growth series. However, number of dendroecological studies focusing on climate change has left the relatively underrepresented even compared lower abundance as dominant species. weaker growth–climate relationship,...
In the present study we investigate effect of contrails on global shortwave radiation. This investigation is performed using continuous hemispherical fish eye photographs sky, diffuse and direct measurements. These measurements have been at solar observatory Kanzelhöhe (1540 m.a.s.l) located in southern part Austria during a period one half year. The time resolution minute, which allows to accurately follow formation-eventually disappearance or movement - sky. Using identified clear sky days...
Abstract. We investigated the effect of contrails on global shortwave radiation and solar energy gain. The study was done for days with a high contrail persistence looking at situations where were obstructing sun. Measurements cloudiness using fish eye camera, diffuse direct measurements short circuit current three different types photovoltaic (PV) modules performed observatory Kanzelhöhe (1540 m a.s.l.) during period one year time resolution minute. Our results show that moving between sun...
While numerous correlational studies on the impact of climatic variation tree ring formation consider plant functional traits, masting cycles and stochastic disturbances, role soil properties is frequently neglected due to insufficient data availability. Using a homogenous dataset increment cores collected in mature stands at 1562 different forest sites with detailed plot specific climate, stand information province Styria Austria we are focusing water storage (plant available capacity...
<p>High resolution, dynamic forest site classification is an innovative tool for decision making in management, particular under the scope of climate change. For a high share Austrian area, soil/site maps are lacking, and, if available, they do not account fact that water, energy and nutrient supply may change over rotation cycle. The project FORSITE aims at providing system province Styria, covering 1 mio. hectares area. High resolution chemical physical soil properties key...