A5018011848- Forest ecology and management
- Plant Water Relations and Carbon Dynamics
- Forest Management and Policy
- Tree-ring climate responses
- Forest Ecology and Biodiversity Studies
- Ecology and Vegetation Dynamics Studies
- Remote Sensing and LiDAR Applications
- Wildlife Ecology and Conservation
- Landslides and related hazards
- Tree Root and Stability Studies
- Fire effects on ecosystems
- Botany and Plant Ecology Studies
- Forest Biomass Utilization and Management
- Cryospheric studies and observations
- Animal Ecology and Behavior Studies
- Interdisciplinary Research and Collaboration
- Innovative Teaching and Learning Methods
- Rangeland and Wildlife Management
- Leaf Properties and Growth Measurement
BOKU University
2010-2025
University of Agriculture in Krakow
2022
Abstract The increasing disturbances in monocultures around the world are testimony to their instability under global change. Many studies have claimed that temporal stability of productivity increases with species richness, although ecological fundamentals mainly been investigated through diversity experiments. To adequately manage forest ecosystems, it is necessary a comprehensive understanding effect mixing on and way which influenced by climate conditions across large geographical areas....
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...
Height:diameter ratios are an important measure of stand stability. Because the importance height:diameter for forest management, individual-tree growth models should correctly depict ratios. In particular, (i) not exceed that very dense stands, (ii) fall below open-grown trees, (iii) decrease with increasing spacing, (iv) suppressed trees be higher than dominant trees. We evaluated prediction by running four commonly used in central Europe: BWIN, Moses, Silva and Prognaus. They represent...
Quercus robur/Quercus petraea and Pinus sylvestris are widely distributed economically important tree species in Europe co-occurring on mesotrophic, xeric mesic sites. Increasing dry conditions may reduce their growth, but growth reductions be modified by mixture, competition site conditions. The annual diameter monospecific mixed stands along an ecological gradient with mean temperatures ranging from 5.5 °C to 11.5 was investigated this study. On 36 triplets (108 plots), trees were cored...
Forest mensuration is important to gain knowledge and information about forest stands. Because tree height often proves more difficult measure than diameter, different statistical models are used for their estimation instead. In this paper, the data of 986 spruce trees (Picea abies KARST. (L.)), measured in federal states Salzburg Tyrol (Austria), were train compare random with traditional approaches such as linear non-linear mixed a classical uniform curve. For model comparison, RMSE,...
Understanding tree growth in relation to environmental conditions is essential, particularly the context of climate change, where rising temperatures, frequent droughts, and disturbances threaten forest health productivity. This study uses high-resolution data from four intensively monitored Picea abies stands Austria (2010–2020), with dendrometers recording hourly stem increments on 10 trees per site, allowing for detailed analysis responses changes. For this purpose we tested different...
European climatic change has been proposed to induce many changes forests, about factors such as tree species distributions, site productivity, groundwater availability, outbreaks of forest pests, and damage from wind-breakage trees. Novel approaches empirical growth modelling using re-measurements over large gradients capture variability associated with long-term conditions well weather during the period. Using latest version individual tree-based simulator, PrognAus, which outfitted a...
Norway spruce, which is sensitive to drought, and Scots pine, drought-resistant, are two of the most significant conifer species in Europe. In mixed stands, they can utilize resources more efficiently than pure leading higher yields reduced risk. Tree ring research often used study their growth response complex environmental factors. Machine learning, though rarely applied tree analysis, might be well suited for modelling these relations. Data from 22 triplets (1 plots spruce pine) covering...
Understanding tree growth in relation to environmental conditions is essential, particularly the context of climate change,where rising temperatures, frequent droughts, and disturbances threaten forest health productivity. This study useshigh-resolution data from four intensively monitored Picea abies stands Austria (2010-2020), with dendrometers recordinghourly stem increments on 10 trees per site, allowing for detailed analysis responses changes.For thispurpose we tested different...
Forest trees exhibit a large variation in basal area increment, which depends on tree specific factors, inter-tree relations and the environment. Studying effect of above factors growth is essential for forest ecology management. In this study, increment model 22 species Austrian National Inventory was parameterized. The included effects size, competition, harvesting disturbances, climate, soil, mixtures. models were fitted using generalized additive models. Basal increased with size all...
<ja:p>Bark stripping by red deer (Cervus elaphus) causes considerable damage to Austrian forests, however, the incidence of bark was never examined from large scale survey data. In this manuscript we present a logistic regression model for (static model) and recent (5-year period) previously undamaged trees (dynamic developed National Forest Inventory Both models showed be most frequent in core habitat areas less suitable habitat. Damage concentrated at elevations 400â1200Â m alluvial...
Abstract Worldwide, mountain forests represent a significant factor in reducing rockfall risk over long periods of time on large potential disposition areas. While the economic value technical protection measures against can be clearly determined and their benefits indicated, there is no general consensus quantification protective effect forests. Experience shows that wherever forest, implementation to reduce might often dispensable or cheaper, deforestations (e.g. after windthrows, forest...
Heterogeneity of structure can increase mechanical stability, stress resistance and resilience, biodiversity many other functions services forest stands. That is why silvicultural measures aim at enhancing structural diversity. However, the effectiveness potential structuring may depend on site conditions. Here, we revealed how stand determined by quality results from site-dependent partitioning growth mortality among trees. We based our study 90 mature, even-aged, fully stocked monocultures...
Abstract Key message Bark stripping wounds by red deer ( Cervus elavus L.) were assessed on 9026 Norway spruce trees. Wound variables (length, width, area, relative height above ground, and angle) analysed using generalized additive models with spatial soap film smoothers. Wounds located at the uphill side of trees larger in summer than winter, wound size depended diameter breast (DBH) was spatially clustered. Context In Austria, elaphus is main species causing bark wounds. they often gnaw...
Radial tree stem growth of Norway spruce (Picea abies (L.) H. Karst.), European beech (Fagus sylvatica L.), Scots pine (Pinus sylvestris and stone cembra L.) was monitored from 2012 to 2015 across sites in Austria with high-resolution dendrometers. Seasonal cumulative diameter increment modeled using a hierarchical nonlinear mixed-effects model framework based on logistic curve. In the dry warm year 2015, average annual 0.30 cm decreased by 50% lower elevation 10% higher sites. cool moist...
We examined the relationship between thinning intensity and volume increment predicted by four commonly used individual-tree growth models in Central Europe (i.e., BWIN, Moses, Prognaus, Silva). replicated conditions of older yield experiments selecting 34 young, dense plots Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.), European beech (Fagus sylvatica L.). At these plots, we simulated growth, with mortality only, to obtain maximum basal area. Maximum area was...
In this study, height–diameter relations were modeled using two different mixed model types for imputation of missing heights from longitudinal data. Model Type A had a hierarchical structure sample plot-specific and measurement occasion-specific random effects. B, possible temporal variance was by linear time trend. Furthermore, various calibration strategies effects performed on past current data, combination both. The performance the models compared independent data bias root mean square...