With regard to desired natural regeneration establishment that it is the goal of selection systems. The role of tree and group selection silvicultural systems on the quantity and quality of natural regeneration was conducted at four site of forest. First, 100 circular sample plots has been selected by use of random systematic inventory. Then into the each plots nine micro-plots defined. The res...

Establishing physiological thresholds to drought-induced mortality in a range of plant species is crucial in understanding how plants respond to severe drought. Here, five common European tree species were selected (Acer campestre L., Acer pseudoplatanus L., Carpinus betulus L., Corylus avellana L. and Fraxinus excelsior L.) to study their hydraulic thresholds to mortality. Photosynthetic param...

A rare coniferous Tertiary relict tree species, Thuja sutchuenensis Franch, has survived in the Daba Mountains of southwestern China. It was almost eliminated by logging during the past century. We measured size and age structures and interpreted regeneration dynamics of stands of the species in a variety of topographic contexts and community associations. Forest communities containing T. sutch...

Leaf phenology varies markedly across tree species of temperate deciduous forests. Early leafing in spring may increase light capture and carbon gain prior to canopy closure, allowing saplings to survive in understory sites deeply shaded in midsummer. We quantified sapling leaf phenology for 18 tree species and seasonal variation in understory light availability at three sites along a ridge-slo...

The distribution of the Middle Spotted Woodpecker (Leiopicus medius) is restricted to mature deciduous forests with large trees, mainly oaks (Quercus spp.). Intensive forest management resulted in loss many suitable habitats, thus resulting a decline population this species. This study aimed identify parameters foraging sites breeding season (April June) and non-breeding (other months). researc...

This study aims to determine some morphological characteristics of two-year-old common hornbeam (Carpinus betulus L.) and oriental orientalis Mill.) seedling the quality classes seedlings according Turkish Standards Institute’s (TSI) standards sturdiness quotient values. As a material, seedlings, grown from seed obtained three different altitudes as lower (0-400 m), mid (400-800 m) upper (800-1...

Although Morimus asper , in particular the ssp. funereus, is considered as widespread throughout Bulgaria, a current national mapping of species missing. Thus, here we present first exhaustive study on distribution M. Bulgaria. Our research combined 967 georeferenced presence records from scientific publications, museum collection National Museum Natural History-BAS, well authors’ and citizen s...

Abstract Litter is the crucial carrier of soil nutrition transformation. The influence arbuscular mycorrhizal (AM) fungi on nutrient acquisition in plants has been widely recognized. However, nutrient-deficient karst habitat, how competitive utilize nutrients regulated by AM via litter remain largely unknown. experimental treatments included inoculation with or without Glomus etunicatum, additi...

Hurricane winds are one of the most important abiotic factors in shaping structure forest and processes that occur it. The aim research was to determine regeneration changes stands caused by windstorm 1983. research, based on stand tables from years 1982, 1984, 1989 2014, carried out nine permanent plots Bia?owie?a Forest. mean number trees (MNT) taller than 1.30 m decreased 13.7% after windsto...

Quality tree species information gathering is the basis for making proper decisions in forest management. By applying new technologies and remote sensing methods, very high resolution (VHR) satellite imagery can give sufficient spatial detail to achieve accurate species-level classification. In this study, influence of pansharpening WorldView-3 (WV-3) on classification results three main (Querc...