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Responses to Climate Factors in the Radial Growth of Schrenk Spruce (Picea Schrenkiana) in the Yili Region, Northwest China

Kexiang Liu

Kexiang Liu

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Liu, Kexiang
, 
Tongwen Zhang

Tongwen Zhang

Xinjiang Climate CenterUrumqi, China
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Zhang, Tongwen
, 
Ruibo Zhang

Ruibo Zhang

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Zhang, Ruibo
, 
Li Qin

Li Qin

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Qin, Li
, 
Shulong Yu

Shulong Yu

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Yu, Shulong
, 
Shengxia Jiang

Shengxia Jiang

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Jiang, Shengxia
 et 
Yuting Fan

Yuting Fan

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological AdministrationUrumqi, China
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Fan, Yuting
  
14 mars 2024
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Publié en ligne: 14 mars 2024
Pages: 195 - 205
Reçu: 04 avr. 2023
Accepté: 30 déc. 2023
DOI: https://doi.org/10.2478/geochr-2023-0012
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© 2024 Kexiang Liu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig 1.

Map of the tree-ring sampling site and meteorological station in this study.
Map of the tree-ring sampling site and meteorological station in this study.

Fig 2.

Meteorological data.
Meteorological data.

Fig 3.

Variation of tree-ring width index at different elevations.
Variation of tree-ring width index at different elevations.

Fig 4.

Correlations between the tree-ring width chronologies and the meteorological data at different elevations.
Correlations between the tree-ring width chronologies and the meteorological data at different elevations.

Fig 5.

Moving correlation between the tree-ring width chronology and meteorological data at different elevations.
Moving correlation between the tree-ring width chronology and meteorological data at different elevations.

Tree-ring sampling point information_

Sample site Longitude Latitude Elevation (m) Species Aspect Canopy closure
High 81°02′2.37″ 43°24′37.48″ 2800–2810 P. schrenkiana N 0.1
Middle 81°02′6.41″ 43°25′14.50″ 2500–2565 P. schrenkiana N 0.2
Low 81°07′12.34″ 43°27′54.69″ 2000–2100 P. schrenkiana N 0.7

Statistical features of tree-ring width standardised chronology at different elevations_

Statistical characteristics High Middle Low
Percentage of the first eigenvector 0.285 0.397 0.451
Mean within-tree correlation coefficient 0.158 0.313 0.409
Signal-to-noise ratio 6.807 13.946 28.146
Representative of the sample to the population 0.872 0.933 0.966
Standard deviation 0.226 0.183 0.279
Mean sensitivity 0.171 0.126 0.210
First-order autocorrelation coefficient 0.589 0.653 0.596
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