Results 51 to 60 of about 4,853 (204)

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Impact of management on quantitative and qualitative characteristics of forest in comparison to unmanaged forest (Case study: Golband region) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2009
This study was performed in order to consider the effect of management plans on forest, through comparison between qualitative and quantitative characteristics of managed and unmanaged forests. Compartment No.
Ieisa Anissi   +3 more
doaj  

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

open access: yesBoreas, EarlyView.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka   +11 more
wiley   +1 more source

TreeON: Reconstructing 3D Tree Point Clouds from Orthophotos and Heightmaps

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present TreeON, a novel neural‐based framework for reconstructing detailed 3D tree point clouds from sparse top‐down geodata, using only a single orthophoto and its corresponding Digital Surface Model (DSM). Our method introduces a new training supervision strategy that combines both geometric supervision and a differentiable shadow and ...
Angeliki Grammatikaki   +4 more
wiley   +1 more source

Oak and hornbeam pollen season in Kielce in 2021

open access: yesAlergoprofil, 2022
The paper presents the characteristics of oak and hornbeam pollen seasons in Kielce in 2021. Aeropalinological measurements were carried out with the use of the volumetric method. The main oak pollen season lasted 35 days. The maximum concentration of oak pollen, i.e.
Anna Kopacz-Bednarska   +2 more
openaire   +2 more sources

Hardness of thermally modified beech wood and hornbeam wood [PDF]

open access: yes, 2019
Na tržištu se pojavljuje velik broj proizvoda (uglavnom podnih obloga) od toplinski modificiranog drva. Poznato je da se drvu mijenjaju fizička i mehanička svojstva djelovanjem temperatura viših od 160 °C u okolišu siromašnome kisikom.
Srđan Stojnić   +11 more
core   +1 more source

Dragonfly taxonomic and functional responses to urbanized streams in southeastern Europe, with management recommendations

open access: yesInsect Conservation and Diversity, EarlyView.
Urbanization drives turnover in dragonfly species composition, traits, and habitat conservation value. Natural stream sections have a higher conservation value (higher DBI) due to presence of specialists. Properly managed urban streams can support diverse dragonfly assemblages.
Marina Vilenica   +5 more
wiley   +1 more source

Carpinus caroliniana: American Hornbeam

open access: yesEDIS, 2018
A handsome tree in many locations, the tree slowly reaches a height and spread of 20 to 30 feet. It will grow with an attractive open habit in total shade, but be dense in full sun. The muscle-like bark is smooth, gray and fluted. Ironwood has a slow growth rate and is reportedly difficult to transplant from a field nursery (although 10-inch-diameter ...
Edward Gilman   +5 more
openaire   +1 more source

The impact of seasonal variations in inner bark width and xylem growth on irreversible annual stem diameter measurements

open access: yesPlant Biology, EarlyView.
The seasonal variation in inner bark width differed from that of xylem growth, indicating that xylem phenology cannot be reliably assessed without cellular observations. Abstract To better interpret continuous xylem growth measurements from dendrometers, we evaluated how the widths of developing xylem and phloem, along with seasonal trends in inner ...
J. Gričar, K. Eler
wiley   +1 more source

Carbon dynamics and nutrients in different decay stages of coarse woody debris in natural Hyrcanian forests, Northern Iran [PDF]

open access: yesCaspian Journal of Environmental Sciences
The relationship between the degree of decay, carbon dynamics, and nutrients of coarse woody debris (CWD) were examined in the experimental forest of Kheirudkenar – Nowshahr as a part of Hyrcanian forests in Northern Iran.
Afsaneh Khalili   +3 more
doaj   +1 more source

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