Abstract Key message Large differences were detected between genera and among species in chlorophyll pigment macronutrient concentrations. Pines have greater variances than spruces showed less downregulation of concentrations response to eCO 2 DRT. There was strong genetic control pigments most macronutrients. Chlorophyll needle quantified for eight tree two commercially important genera, Pinus...

Abstract. Single tree detection has been a major research topic concerning automatic forest inventory using remote sensing data. Recently, deep learning-based approaches in forestry have gained attention because of the prospect improved accuracy. In this study, we present novel method based on transformer (DETR), which applies combination with pre-trained convolutional neural network to detect ...

Current levels of forestry expansion in boreal forests threaten to radically reduce biodiversity. For many forest-dwelling species the threat is not simply because forest used for biomass production, but rather how it used. Retention practices aim limit impacts on biodiversity during final felling stage a cycle. However, efficiency such methods retaining have rarely been studied intermediate st...

Abstract Forest tree growth is primarily explained, modelled, and predicted depending on current age or size, environmental conditions, competitive status in the stand. The accumulated size commonly used as a proxy for tree's past development. However, recent studies suggest that antecedent conditions may impact present by epigenetic, transcriptional, proteomic, metabolic changes alongside phys...

The acid properties of particles have been investigated by means of measuring the content of mainly strong acid in leaching solutions of particle samples and in drain water from trees. The measurements are based on Gran's plot and on a study of its curvature.

This paper documents data on standing dead trees (snags) in the pine-spruce (Norway spruce Picea abies, Scots pine Pinus sylvestris) natural stand in Bialowieza National Park (BNP) in northeast Poland. Trophically, this mostly coniferous stand represents one of the poorest habitats of the BNP, and this stand has never been cut. There are few tree species of significance, i.e., Scots pine, Norwa...

Forest trees have unquestionably entered the genomic era. The updated version of the Populus genome, the recently released Eucalyptus grandis genome and the concerted efforts towards the generation of genome sequences for spruces (Picea sp.) and pines (Pinus sp.) by several groups worldwide, are fueling a multitude of inter-disciplinary studies and applications in sustainable forest production ...

Many have held the Acquisition of Concepts Thesis (ACT) that concept acquisition can change perceptual experience. This paper explains the close relation of ACT to ADT, the thesis that acquisition of dispositions to quickly and reliably recognize a kind of thing can change perceptual experience. It then states a highly developed argument given by Siegel (2010) which, if successful, would offer ...

Grand fir (Abies grandis) saplings and derived cell cultures are useful systems for studying the regulation of defensive oleoresinosis in conifers, a process involving both the constitutive accumulation of resin (pitch) in specialized secretory structures and the induced production of monoterpene olefins (turpentine) and diterpene resin acids (rosin) by nonspecialized cells at the site of injur...

According to Genesis, trees were created on the third day of the Creation Week. Within a Biblical worldview, this suggests that they are discontinuous with other plant forms. Naturalists posit that trees arose by random processes from simpler photosynthetic organisms. Fossil evidence for tree evolution from putative non-tree precursors is evaluated. It is concluded that the fossil record does n...