scholarly journals Tree demography dominates long-term growth trends inferred from tree rings

2016 ◽  
Vol 23 (2) ◽  
pp. 474-484 ◽  
Author(s):  
Roel J. W. Brienen ◽  
Manuel Gloor ◽  
Guy Ziv
Keyword(s):  
Tree Rings ◽  
Growth Trends ◽  
Tree Demography

Detecting long‐term growth trends using tree rings: a critical evaluation of methods

2015 ◽  
Vol 21 (5) ◽  
pp. 2040-2054 ◽  
Author(s):  
Richard L. Peters ◽  
Peter Groenendijk ◽  
Mart Vlam ◽  
Pieter A. Zuidema
Keyword(s):  
Tree Rings ◽  
Critical Evaluation ◽  
Growth Trends ◽  
Evaluation Of Methods

Long-term growth trends of Abies delavayi and its physiological responses to a warming climate in the Cangshan Mountains, southwestern China

2022 ◽  
Vol 505 ◽  
pp. 119943
Author(s):  
Rao-Qiong Yang ◽  
Fan Zhao ◽  
Ze-Xin Fan ◽  
Shankar Panthi ◽  
Pei-Li Fu ◽  
...  
Keyword(s):  
Physiological Responses ◽  
Southwestern China ◽  
Growth Trends ◽  
Warming Climate

Application of tree rings in understanding long-term variability in river discharge of high Himalayas, India

2022 ◽  
pp. 247-264
Author(s):  
Vikram Singh ◽  
Krishna G. Misra ◽  
Akhilesh K. Yadava ◽  
Ram R. Yadav
Keyword(s):  
Tree Rings ◽  
River Discharge ◽  
High Himalayas

Long-Term Growth Trends of Trees: Ten Years of Dendrochronological Studies in France

1996 ◽  
pp. 167-181 ◽  
Author(s):  
Vincent Badeau ◽  
Michel Becker ◽  
Didier Bert ◽  
Jean Luc Dupouey ◽  
François Lebourgeois ◽  
...  
Keyword(s):  
Growth Trends

scholarly journals A 23-Year Retrospective Blind Check of Accuracy of the Copenhagen Radiocarbon Dating System

Radiocarbon ◽  
1999 ◽  
Vol 41 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Kaare L Rasmussen ◽  
Henrik Tauber ◽  
Niels Bonde ◽  
Kjeld Christensen ◽  
Páll Theodórsson
Keyword(s):  
Standard Deviation ◽  
Tree Rings ◽  
Radiocarbon Dating ◽  
Average Difference ◽  
Blind Test ◽  
Term Stability ◽  
Long Term Stability ◽  
Measuring Accuracy ◽  
Sample Age

A 23-yr record of the measuring accuracy of the Copenhagen radiocarbon dating laboratory has retrospectively been provided through a true blind test. A total of 92 samples of oak from old tree trunks were dated in the period 1971 to 1993 and their dendrochronological age determined independently. The 14C activity of the dendrochronological samples measured in the Copenhagen radiocarbon laboratory was compared to the activity of the tree rings of the same age measured by Stuiver and Pearson (1993) for calibration purposes. The average difference was found to be 54 ± 72 14C yr. The results further indicate that the actual standard deviation is only 7% higher than that quoted by the laboratory. The investigation has shown a long-term stability of laboratory accuracy with no systematic laboratory variations either with respect to sample age or to the time of measurement from 1971 to 1993.

Extracting environmentally driven growth trends from diameter increment series based on a multiplicative decomposition model

2011 ◽  
Vol 41 (8) ◽  
pp. 1577-1589 ◽  
Author(s):  
Chaofang Yue ◽  
Ulrich Kohnle ◽  
Marc Hanewinkel ◽  
Joachim Klädtke
Keyword(s):  
Conceptual Framework ◽  
Least Squares ◽  
Environmental Changes ◽  
Nonlinear Least Squares ◽  
Additive Models ◽  
Site Quality ◽  
Multiplicative Decomposition ◽  
Growth Trends ◽  
Diameter Increment

The study developed a conceptual framework for partitioning the components of diameter increment to potentially detect the influence of environmental changes. This process consisted of two steps. First, a multiplicative decomposition diameter increment model was introduced to evaluate the influence of ageing, site quality, competition status, and thinning effects on individual tree growth. Second, generalized additive models were applied to identify the nonlinear dynamic of growth trends caused by environmental changes. The conceptual framework was then applied to Norway spruce ( Picea abies (L.) Karst.) growing in southwest Germany. The database consisted primarily of tree ring series collected from trees cut from long-term experimental stands. Also, stand-level data were available from periodical remeasurements of these plots. The developed analytical technique effectively removed non-environment-related effects (ageing, site quality, and stand dynamic) from the growth signal provided in the diameter increment series. Growth trends deducted from estimates based on either nonlinear least squares, generalized nonlinear least squares, or nonlinear mixed-effects approaches displayed quite similar patterns. In general, the trend in diameter increment showed a long-term increase from the 1920s into the 1990s with a midterm depression in the 1940s that was followed by a significant decrease in the recent past.

Age and Long-term Growth of Trees in an Old-growth Tropical Rain Forest, Based on Analyses of Tree Rings and 14C1

Biotropica ◽  
2003 ◽  
Vol 35 (3) ◽  
pp. 306-317 ◽  
Author(s):  
Esther Fichtler ◽  
Deborah A. Clark ◽  
Martin Worbes
Keyword(s):  
Tree Rings ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Old Growth

Long-term Interactions between Migratory Caribou, Wildfires and Nunavik Hunters Inferred from Tree Rings

AMBIO ◽  
2004 ◽  
Vol 33 (8) ◽  
pp. 482-486 ◽  
Author(s):  
Serge Payette ◽  
Stéphane Boudreau ◽  
Claude Morneau ◽  
Nadia Pitre
Keyword(s):  
Tree Rings
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