Nonannual tree rings in a climate-sensitive Prioria copaifera chronology in the Atrato River, Colombia. [PDF]
Ecol Evol, 2017 In temperate climates, tree growth dormancy usually ensures the annual nature of tree rings, but in tropical environments, determination of annual periodicity can be more complex.
Herrera-Ramirez D +4 more
europepmc +3 more sources
A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China. [PDF]
Nat Commun, 2017 Cosmic rays interact with the Earth's atmosphere to produce $^{14}$C, which can be absorbed by trees. Therefore, rapid increases of $^{14}$C in tree rings can be used to probe previous cosmic-ray events.
Wang FY, Yu H, Zou YC, Dai ZG, Cheng KS.
europepmc +5 more sources
Tree Rings Mercury Controlled by Atmospheric Gaseous Elemental Mercury and Tree Physiology [PDF]
Environmental Science & TechnologyHaijun Peng +2 more
exaly +2 more sources
Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results [PDF]
, 1998 The Queen's University of Belfast, Northern Ireland and University of Waikato, Hamilton, New Zealand radiocarbon laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak (Quercus patrea ...
Baillie, Mike G.L. +8 more
core +7 more sources
IntCal20 Tree Rings: An Archaeological Swot Analysis [PDF]
Radiocarbon, 2020 ABSTRACTWe undertook a strengths, weaknesses, opportunities, and threats (SWOT) analysis of Northern Hemisphere tree-ring datasets included in IntCal20 in order to evaluate their strategic fit with the demands of archaeological users. Case studies on wiggle-matching single tree rings from timbers in historic buildings and Bayesian modeling of series of
Alex Bayliss +5 more
openaire +8 more sources
Xylem plasticity in Pinus pinaster and Quercus ilex growing at sites with different water availability in the Mediterranean region: relations between Intra-Annual Density Fluctuations and environmental conditions. [PDF]
, 2020 Fluctuations in climatic conditions during the growing season are recorded in Mediterranean tree-rings and often result in intra-annual density fluctuations (IADFs).
Balzano, A. +3 more
core +1 more source
Robust Tree-Ring Detection [PDF]
, 2007 The study of tree-rings is a common task in dendrology. Usually the rings deliver information about the age of the tree, historic climate conditions and forest densities. Many different techniques exist to perform the tree-ring detection, but they commonly are semi-automatic.
Mauricio Cerda +2 more
openaire +3 more sources
Juniper from Ethiopia contains a large-scale precipitation signal [PDF]
, 2008 Most semiarid regions are facing an increasing scarcity of woody vegetation due mainly to anthropogenic deforestation aggravated by climate changes. However, there is insufficient information to reconstruct past changes in climate and to evaluate the ...
Couralet, C. +3 more
core +2 more sources
Elements content in tree rings from Xi'an, China and environmental variations in the past 30 years [PDF]
, 2018 Using inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES), the characteristics of chemical elements were analyzed in white poplar (Populus bonatii Levl.) and ailanthus (Ailanthus ...
Cherubini, Paolo +5 more
core +1 more source
Local variance of atmospheric 14C concentrations around Fukushima Dai-ichi Nuclear Power Plant from 2010 to 2012 [PDF]
, 2017 Radiocarbon (14C) has been measured in single tree ring samples collected from the southwest of the Fukushima Dai-ichi Nuclear Power Plant. Our data indicate south-westwards dispersion of radiocarbon and the highest 14C activity observed so far in the ...
Chen, Biying +7 more
core +2 more sources