scholarly journals Climatic signals in earlywood, latewood and total ring width of Corsican pine from western France

2000 ◽  
Vol 57 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Fran�ois Lebourgeois
Keyword(s):  
Ring Width ◽  
Climatic Signals

scholarly journals Dendroindication of ecoclimatic condition in forest remediation area within Northern Steppe of Ukraine

2019 ◽  
Vol 10 (4) ◽  
pp. 457-463
Author(s):  
Y. I. Gritsan ◽  
V. M. Lovynska ◽  
S. A. Sytnyk ◽  
A. I. Hetmanchuk
Keyword(s):  
Ring Width ◽  
Climatic Factor ◽  
Dead Trees ◽  
Values Assessment ◽  
The Difference ◽  
Earlywood Width ◽  
Flood Condition ◽  
General Ring ◽  
Climatic Signals ◽  
Tree Increment

We analyzed ring width, latewood width and earlywood width of Pinus sylvestris trees under normal and flood condition in Dnipropetrovsk region, within Northern Steppe of Ukraine. Precipitation from February to August seems to be the most stable climatic factor which influenced Scots pine growth rate and caused the difference between maximum and minimum ring width in normal conditions. Meteorological conditions were mainly associated with general ring values and earlywood width, and were less associated with latewood width values. Assessment of the effect of climatic signals on tree rings’ growth process in living and dead trees and in the normal and flood condition by analyses of correlation and response function was conducted. Average annual temperatures affected the tree growth negatively in normal conditions and tree increment positively in flood conditions. Annual precipitation was correlated positively with ring width, earlywood width series in normal conditions, but negatively with these series in flood conditions.

scholarly journals Climatic signals extracted from ring-width chronologies of Scots pines from the northern, middle and southern parts of the boreal forest belt in Finland

Silva Fennica ◽  
2000 ◽  
Vol 34 (4) ◽  
Author(s):  
Markus Lindholm ◽  
Hannu Lehtonen ◽  
Taneli Kolström ◽  
Jouko Meriläinen ◽  
Matti Eronen ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Ring Width ◽  
Forest Belt ◽  
Climatic Signals

scholarly journals Development of a Larix principis-rupprechtii tree-ring width chronology and its climatic signals for the southern Greater Higgnan Mountains

2018 ◽  
Vol 45 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Tongwen Zhang ◽  
Shulong Yu ◽  
Yujiang Yuan ◽  
Liping Huang ◽  
Shengxia Jiang
Keyword(s):  
Tree Ring ◽  
Ring Width ◽  
Low Frequency ◽  
Northern China ◽  
Severity Index ◽  
Drought Severity ◽  
Mountainous Area ◽  
Tree Ring Width ◽  
Large Area ◽  
Climatic Signals

Abstract Forty-one living larch (Larix principis-rupprechtii) trees collected from two sampling sites in 1310–1530 m a.s.l. in the southern Greater Higgnan Mountains in the northeastern China are used to develop a regional tree-ring width chronology. The credible chronology spans 185 years from 1830 to 2014. The results of correlation analyses indicate that moisture is the main climatic factor controlling radial growth of larch trees in this mountainous area. Spatial correlation proves that the regional tree-ring width chronology contains climatic signals representative for a large area including the eastern Mongolian Plateau and Nuluerhu Mountains. A comparison between the newly developed chronology and a May–July Palmer Drought Severity Index (PDSI) reconstruction for the Ortindag Sand Land reveals similar variations, particularly in the low-frequency domain. The tree-ring records also capture a severe and sustained drying trend recorded in the 1920s across a wide area of northern China.

Vessel Chronologies from Teak in Northern Thailand and their Climatic Signal

IAWA Journal ◽  
1999 ◽  
Vol 20 (3) ◽  
pp. 285-294 ◽  
Author(s):  
Nathsuda Pumijumnong ◽  
Won-Kyu Park
Keyword(s):  
Time Series ◽  
Ring Width ◽  
Vessel Diameter ◽  
Transitional Period ◽  
Tree Ring Width ◽  
Wet Season ◽  
Image Analysis Technique ◽  
Vessel Area ◽  
Analysis Technique ◽  
Climatic Signals

Five teak trees in northem Thailand were selected for the study of vessels in terms of dendroclimatology. The tree rings were divided into earlywood and latewood, and fourparameters (average vessel area, average vessel diameter, average conductive area, and vessel density) were measured by automatie image analysis technique to obtain 50-year (1947-1996) time series. Two questions were addressed: 1) How strongly are the vessel characteristics related to climate and 2) are these relationships different from those of ring widths? All vessel parameters of the total ring and of the earlywood were negatively correlated with precipitation during the transitional period between the dry and the wet season. The latewood vessel parameters, however, are negatively correlated with J une temperature. The climatic signals of the vessel parameters and of the tree-ring width are different from each other.

Reconstruction of maximum temperature on Zhegu Mountain, western Sichuan Plateau (China)

2020 ◽  
Vol 81 ◽  
pp. 1-14
Author(s):  
M Keyimu ◽  
Z Li ◽  
Y Zhao ◽  
Y Dong ◽  
B Fu ◽  
...  
Keyword(s):  
Tree Growth ◽  
Ring Width ◽  
Volcanic Eruptions ◽  
Southwestern China ◽  
Maximum Temperature ◽  
Driving Mechanism ◽  
Western Sichuan ◽  
Relationship Analysis ◽  
Decadal Scale ◽  
Thermal Variability

Historical temperature reconstructions at high altitudes are still insufficient in southwestern China, which is considered one of the most sensitive areas to climate change in the world. Here we developed a tree ring-width chronology of Faxon fir Abies fargesii var. faxoniana at the upper timber line on Zhegu Mountain, Miyaluo Scenic Area, western Sichuan, China. The climate-tree growth relationship analysis indicated temperature as the dominant regulator on radial tree growth in this region. The reconstruction of aggregated maximum temperature (TMX) of autumn and winter for the period 1856-2016 was achieved with a linear regression model that accounted for 43.6% of the actual variability in the common time series (1954-2016). The reconstruction identified 4 warm periods and 3 cold periods. Similarities of warm and cold periods with previously published reconstructions from nearby sites indicated the reliability of our reconstruction. The significant positive correlation between TMX reconstruction and the Asian-Pacific Oscillation index and the Atlantic Multi-decadal Oscillation index suggested a linkage between large-scale climate circulations and the thermal variability at a multi-decadal scale on the western Sichuan Plateau. We also found that solar activity exerted a strong influence on decadal temperature variability in this region. The cold periods were matched well with historical large volcanic eruptions. Our results strengthen the historical climatic information in southwestern China and contribute to further understanding the regional thermal variability as well as its driving mechanism.

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