Results 1 to 10 of about 7,048 (141)

A protocol for high-quality sectioning for tree-ring anatomy [PDF]

Frontiers in Plant Science
Quantitative wood anatomy (QWA), which involves measuring wood cell anatomical characteristics commonly on dated tree rings, is becoming increasingly important within plant sciences and ecology.
Marina V. Fonti, Marina V. Fonti, Georg von Arx, Georg von Arx, Maryline Harroue, Loïc Schneider, Loïc Schneider, Daniel Nievergelt, Daniel Nievergelt, Jesper Björklund, Jesper Björklund, Rashit Hantemirov, Rashit Hantemirov, Vladimir Kukarskih, Vladimir Kukarskih, Cyrille B.K. Rathgeber, Nadja-Tamara Studer, Nadja-Tamara Studer, Patrick Fonti, Patrick Fonti   +19 more
doaj   +6 more sources

Radiocarbon and wood anatomy as complementary tools for generating tree-ring records in Bolivia [PDF]

Frontiers in Plant Science, 2023
The science of tropical dendrochronology is now emerging in regions where tree-ring dating had previously not been considered possible. Here, we combine wood anatomical microsectioning techniques and radiocarbon analysis to produce the first tree-ring ...
Arturo Pacheco-Solana, Rose Oelkers, Rosanne D’Arrigo, Guaciara M. Santos, Milagros Rodriguez-Caton, Milagros Rodriguez-Caton, Ernesto Tejedor, Eugenia Ferrero, Alfredo F. Fuentes, Alfredo F. Fuentes, Carla Maldonado, Laia Andreu-Hayles, Laia Andreu-Hayles, Laia Andreu-Hayles   +13 more
doaj   +9 more sources

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

Direct Observation of the Developing Intra-Annual Density Fluctuation (IADF) for Scots Pine in Semiarid Siberian Belt Forest: External Stress Targets Cambium [PDF]

Plants
Long-term observations of the seasonal growth of Scots pine (Pinus sylvestris L.) tree rings in the arid conditions of the Khakass-Minusinsk Basin (southern Siberia) revealed that in 2024, trees had formed a tree ring with a typical intra-annual density ...
Yulia A. Kholdaenko, Natalia V. Karmanovskaya, Liliana V. Belokopytova, Dina F. Zhirnova, Nariman B. Mapitov, Eugene A. Vaganov, Elena A. Babushkina   +6 more
doaj   +2 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 Bjorklund, Kristina Seftigen, Markus Stoffel   +2 more
exaly   +5 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

Quantitative wood anatomy of Juniperus excelsa from Lebanon as a potential hydroclimate archive [PDF]

Frontiers in Plant Science
The Middle East and North Africa is a hotspot for negative climate change impacts and potentially for conflicts over water resources. To protect future generations from destabilization and marginalization, governments need to consider the impact of ...
Mansour Mdawar, Mansour Mdawar, Daniel Balanzategui, Daniel Balanzategui, Daniel Balanzategui, Ramzi Touchan, Emanuele Ziaco, Isabel Dorado-Liñán, Gerhard Helle, Ingo Heinrich, Ingo Heinrich, Ingo Heinrich   +11 more
doaj   +2 more sources

Contribution of Xylem Anatomy to Tree-Ring Width of Two Larch Species in Permafrost and Non-Permafrost Zones of Siberia [PDF]

Forests, 2020
Plants exhibit morphological and anatomical adaptations to cope the environmental constraints of their habitat. How can mechanisms for adapting to contrasting environmental conditions change the patterns of tree rings formation? In this study, we explored differences in climatic conditions of permafrost and non-permafrost zones and assessed their ...
Margarita I Popkova, Vladimir V Shishov, Eugene A Vaganov   +2 more
exaly   +3 more sources

Dendrochronology and Isotope Chronology of Juglans neotropica and Its Response to El Niño-Related Rainfall Events in Tropical Highlands of Piura, Northern Peru [PDF]

Plants
Tropical trees represent an important potential archive of climate and ecological information, but their dendrochronology based on conventional techniques has been challenging.
Tone Marie Ektvedt, Michael N. Evans, Donald A. Falk, Paul R. Sheppard   +3 more
doaj   +2 more sources

Tree‐Ring Anatomy Improves the Reliability of Temperature Reconstructions Using Relict Wood

Geophysical Research Letters
Tree rings are crucial for reconstructing past climates, with maximum latewood density (MXD) as a key metric. However, wood integrity is critical for accurate MXD‐based reconstructions, raising concerns when using potentially degraded relict wood ...
Stefan Klesse, Jesper Björklund, Marina V. Fonti, Daniel Nievergelt, Georg von Arx, Rashit M. Hantemirov, Vladimir V. Kukarskih, Lisbeth Garbrecht Thygesen, Nanna Bjerregaard Pedersen, Patrick Fonti   +9 more
doaj   +2 more sources