A5005916056- Forest ecology and management
- Forest Management and Policy
- Bioenergy crop production and management
- Forest Biomass Utilization and Management
- Plant Water Relations and Carbon Dynamics
- Forest Ecology and Biodiversity Studies
- Remote Sensing and LiDAR Applications
- Mycorrhizal Fungi and Plant Interactions
- Tree Root and Stability Studies
- Plant Pathogens and Fungal Diseases
- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Plant Disease Resistance and Genetics
- Soil Carbon and Nitrogen Dynamics
- Forest Insect Ecology and Management
- Tree-ring climate responses
- Global Energy and Sustainability Research
- Plant and Fungal Interactions Research
- Insect-Plant Interactions and Control
- Ruminant Nutrition and Digestive Physiology
- Metallurgy and Material Science
- Geology and Paleoclimatology Research
- Global Energy Security and Policy
- Surface Roughness and Optical Measurements
- Yeasts and Rust Fungi Studies
Estonian University of Life Sciences
2014-2024
GF Jooste Hospital
2022
Soil microbiome has a pivotal role in ecosystem functioning, yet little is known about its build-up from local to regional scales. In multi-year regional-scale survey involving 1251 plots and long-read third-generation sequencing, we found that soil pH the strongest effect on diversity of fungi multiple taxonomic functional groups. The effects were typically unimodal, usually both direct indirect through tree species, nutrients or mold abundance. Individual particularly Pinus sylvestris,...
Abstract Partner specificity is a well‐documented phenomenon in biotic interactions, yet the factors that determine plant‐fungal associations remain largely unknown. By utilizing composite soil samples, we identified predictors drive partner both plants and fungi, with particular focus on ectomycorrhizal associations. Fungal guilds exhibited significant differences overall preference avoidance, richness, to specific tree genera. The highest level of was observed root endophytic associations,...
Eddy covariance measurements are increasingly utilized for assessing the exchange of matter and energy between ecosystems atmosphere across various time scales, ranging from hours to years. The flux footprint represents area observable by tower sensors illustrates how surface influences measured flux. Flux models describe both spatial extent specific location contributing observed turbulent In this study, we a simple two-dimensional parameterization prediction (FFP) developed Kljun et al....
The new European Union Forest Strategy for 2030 aims to plant an additional 3 billion trees on non-forest land mitigate climate change. However, the choice of tree species afforestation achieve maximum benefit is unclear. We compared six different in terms carbon (C) sequestration biomass and harvested wood substitution products avoid dioxide (CO2) emissions from fossil-based materials over 100-year period by afforesting about ¼ available area northern Europe. highest was observed larch,...
Diplodia sapinea is a cosmopolitan endophyte and opportunistic pathogen having occurred on several conifer species in Europe for at least 200 years. In Europe, disease outbreaks have increased Pinus spp. the last few decades. this study, genetic structure of European western Asian D. population were investigated using 13 microsatellite markers. total, 425 isolates from 15 countries analysed. A high clonal fraction low distance between most subpopulations was found. One single haplotype...
Abstract In Estonia up to now the producers of wood fuels have not yet adequately analysed production and transport costs although it is known that share these form half final price chips or hog fuel. With this in mind goal case study was defined – analyse formation comminuted Estonian conditions. Within one year survey initial data collected from company SLG Energy. Different types machines (7 total) were observed chippers Jenz HEM 561, 582, Heinola 910ES, Doppstadt DH 608. All equipped...
Clear-cutting is an extensively used silvicultural method in the Nordic and Baltic countries, which strongly influences site's carbon (C) budget. In current study, C budgets for a young silver birch stand chronosequence (2–8-year-old) were compiled using budgeting method. High variability of annual NEP between stands similar ages occurred, as accumulation ability was site specific. Heterotrophic respiration (Rh), main efflux from ecosystem, varied (3.7 6.3 t ha−1 yr−1) across all stands....
The values of the fractional distribution aboveground (AGB) and belowground biomass (BGB), root/shoot ratios (R/S) stemwood density were estimated for silver (Betula pendula) downy birch pubescens) along site index age gradients Estonia. Biomass models used, in which diameter at breast height (D1.3, measured above root collar), tree height, served as independent variables. AGB BGB elaborated based on data 117 30 model trees, respectively. Strong allometric relationships revealed between D1.3...
The decomposition of the leaf litter, fine roots (d < 2 mm) and coarser (2 ≤ d 5 grey alder silver birch, as well α-cellulose sheets using litterbag method was studied in two experimental stands on Podzoluvisol soils Southern Estonia. For both tree species, decomposed faster than roots, (p .05), species did not affect rate > .5). nitrogen (N) input to soil from aboveground litter multiple times higher N flux roots. remaining relative ash-free mass leaves birch after three a half years...
In light of the difficulties in stand volume estimation natural forests, we analyzed height–diameter relationships and derived a set height equations for naturally developing forest ecosystems, using Järvselja old-growth Laeva commercial Estonia as case study. This contribution presents an approach to model individual tree Scots pine, common aspen, silver downy birch, Norway spruce, black alder, gray linden species, European ash, maple, deciduous species coniferous multi-size mixed-species...
Abstract Due to practical need improve the accuracy of measurement wood electrical resistance via creating multivariate calibration models study electrode effects was carried out. The experiments were made in DC mode and five types measured: galvanic contact between measuring wood, corrosion electrodes wet polarization depolarization double layer forming on surface electrodes, residual voltage effect repeated use electrodes. For multi-channel neighbouring measured. Behind each these factors...