Results 11 to 20 of about 71,513 (282)

Tree ring segmentation using UNEt TRansformer neural network on stained microsections for quantitative wood anatomy

Frontiers in Plant Science
Forests are critical in the terrestrial carbon cycle, and the knowledge of their response to ongoing climate change will be crucial for determining future carbon fluxes and climate trajectories.
Miguel García-Hidalgo, Ángel García-Pedrero, Ángel García-Pedrero, Vicente Rozas, Gabriel Sangüesa-Barreda, Ana I. García-Cervigón, Giulia Resente, Giulia Resente, Martin Wilmking, José Miguel Olano   +9 more
doaj   +7 more sources

Fennoscandian tree-ring anatomy shows a warmer modern than medieval climate

Nature, 2023
Earth system models and various climate proxy sources indicate global warming is unprecedented during at least the Common Era1. However, tree-ring proxies often estimate temperatures during the Medieval Climate Anomaly (950-1250 CE) that are similar to, or exceed, those recorded for the past century2,3, in contrast to simulation experiments at regional
Jesper Björklund, Kristina Seftigen, Markus Stoffel, Marina V. Fonti, Sven Kottlow, David C. Frank, Jan Esper, Patrick Fonti, Hugues Goosse, Håkan Grudd, Björn E. Gunnarson, Daniel Nievergelt, Elena Pellizzari, Marco Carrer, Georg von Arx   +14 more
openaire   +6 more sources

Climatic Influences on Wood Anatomy and Tree-Ring Features of Great Basin Conifers at a New Mountain Observatory [PDF]

Applications in Plant Sciences, 2014
Premise of the study: A network of mountain observing stations has been installed in the Great Basin of North America. NevCAN (Nevada Climate-ecohydrological Assessment Network), which spans a latitudinal range of 2.5° and two elevation ranges of ...
Emanuele Ziaco, Franco Biondi, Sergio Rossi, Annie Deslauriers   +3 more
doaj   +5 more sources

Siberian spruce tree ring anatomy: imprint of development processes and their high-temporal environmental regulation [PDF]

Dendrochronologia, 2019
Abstract Wood anatomy was offered as spatiotemporal proxy record for tracheid differentiation kinetics due to its advantages in terms of much longer cover period and less demanding measurements. In this study, external and internal regulation of earlywood-to-latewood transition and properties of latewood of Picea obovata Ledeb were considered.
Elena A. Babushkina, Liliana V. Belokopytova, Dina F. Zhirnova, Eugene A. Vaganov   +3 more
openaire   +4 more sources

To flow or to grow? Impacts of tapping on sugar maple [PDF]

Quantitative Plant Biology
Maple sugaring is a rapidly growing industry in North America. Maples are tapped annually, thus undergoing repeated wounding and resource reduction for sap water collection.
Hannah Grace McNulty, Roberto Silvestro, Minhui He, Fabio Gennaretti, Sergio Rossi   +4 more
doaj   +2 more sources

Tree-ring anatomy and carbon isotope ratio show both direct and legacy effects of climate on bimodal xylem formation in Pinus pinea [PDF]

Tree Physiology, 2018
Understanding how climate affects xylem formation is critical for predicting the impact of future conditions on tree growth and functioning in the Mediterranean region, which is expected to face warmer and drier conditions. However, mechanisms of growth response to climate at different temporal scales are still largely unknown, being complicated by ...
Castagneri, Daniele, BATTIPAGLIA, GIOVANNA, von Arx, Georg, Pacheco, Arturo, Carrer, Marco   +4 more
openaire   +5 more sources

500-year paleoclimate record inferred from Greenland Juniper wood contextualizes current climate warming [PDF]

Nature Communications
Contextualising Arctic warming and sea ice loss requires high-resolution climate proxy archives, which are rare across the high-northern latitudes. Here, we present annually resolved and absolutely dated tree-ring width measurements of living and dry ...
Magdalena Opała-Owczarek, Ulf Büntgen, Piotr Owczarek, Christian Lange   +3 more
doaj   +2 more sources

Quantitative vessel mapping on increment cores: a critical comparison of image acquisition methods [PDF]

Frontiers in Plant Science
IntroductionQuantitative wood anatomy is critical for establishing climate reconstruction proxies, understanding tree hydraulics, and quantifying carbon allocation.
Richard L. Peters, Richard L. Peters, Richard L. Peters, Stefan Klesse, Stefan Klesse, Jan Van den Bulcke, Jan Van den Bulcke, Lisa M. Y. Jourdain, Lisa M. Y. Jourdain, Georg von Arx, Georg von Arx, Alba Anadon-Rosell, Alba Anadon-Rosell, Jan Krejza, Jan Krejza, Ansgar Kahmen, Marina Fonti, Angela Luisa Prendin, Flurin Babst, Flurin Babst, Tom De Mil   +20 more
doaj   +2 more sources

Relationship between wood anatomy, tree-ring widths and wood density of Pinus sylvestris L. and climate at high latitudes in northern Sweden

Dendrochronologia, 2014
In this study, wood anatomy, tree-ring width and wood density of Pinus sylvestris at the northern timberline in Fennoscandia were used to identify relationships among the parameters and to screen them for their climatic signals. Furthermore we investigated the influence of the juvenile wood section for all parameters developed. The measurements of wood
Pritzkow, C., Heinrich, I., Grudd, H., Helle, G.   +3 more
openaire   +6 more sources

Relationships Between Wood-Anatomical Features and Resistance Drilling Density in Norway Spruce and European Beech

Frontiers in Plant Science, 2022
Environmental conditions affect tree-ring width (TRW), wood structure, and, consequently, wood density, which is one of the main wood quality indicators.
Domen Arnič, Domen Arnič, Luka Krajnc, Jožica Gričar, Peter Prislan   +4 more
doaj   +1 more source