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<p>To examine the associations existing between elevation and tree growth, tree-ring width chronologies of Schrenk spruce (<italic>Picea schrenkiana</italic>) were developed from sampling sites at different elevations in the Wusun Mountain, Yili region, Xinjiang, northwest China. The radial growth of high-elevation trees was observed to be primarily influenced by meteorological factors in the non-growth season of the previous year. The radial growth of mid-elevation trees was mainly affected by temperature. The radial growth of low-elevation trees was mainly affected by both temperature and relative humidity. About climate change, the radial growth of Schrenk spruce at different elevations showed a non-uniform response to climate variables. Under the condition of intensified drought stress in the future, the forest ecosystem is likely to be greatly affected, and the radial growth of Schrenk spruce at low elevations will be especially inhibited.</p>
</abstract>

To examine the associations existing between elevation and tree growth, tree-ring width chronologies of Schrenk spruce (Picea schrenkiana) were developed from sampling sites at different elevations in the Wusun Mountain, Yili region, Xinjiang, northwest China. The radial growth of high-elevation trees was observed to be primarily influenced by meteorological factors in the non-growth season of the previous year. The radial growth of mid-elevation trees was mainly affected by temperature. The radial growth of low-elevation trees was mainly affected by both temperature and relative humidity. About climate change, the radial growth of Schrenk spruce at different elevations showed a non-uniform response to climate variables. Under the condition of intensified drought stress in the future, the forest ecosystem is likely to be greatly affected, and the radial growth of Schrenk spruce at low elevations will be especially inhibited.

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

Key Laboratory of Tree-ring Physical and Chemical Research, CMA/Xinjiang Key Laboratory for Tree Ring Ecology

Institute of Desert Meteorology, China Meteorological Administration

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

To examine the associations existing between elevation and tree growth, tree-ring width chronologies of Schrenk spruce (Picea schrenkiana) were developed from...

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 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

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

Pubblicato online: 14 mar 2024

Pagine: 195 - 205

Ricevuto: 04 apr 2023

Accettato: 30 dic 2023

DOI: https://doi.org/10.2478/geochr-2023-0012

Parole chiave
tree-ring, chronology development, climate responses, Tian Shan Mountains

© 2024 Kexiang Liu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig 1.

Fig 2.

Fig 3.

Fig 4.

Fig 5.

Tree-ring sampling point information.

Statistical features of tree-ring width standardised chronology at different elevations.

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

Pubblicato online: 14 mar 2024

Pagine: 195 - 205

Ricevuto: 04 apr 2023

Accettato: 30 dic 2023

DOI: https://doi.org/10.2478/geochr-2023-0012

Parole chiavetree-ring, chronology development, climate responses, Tian Shan Mountains

© 2024 Kexiang Liu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig 1.

Fig 2.

Fig 3.

Fig 4.

Fig 5.

Tree-ring sampling point information.

Statistical features of tree-ring width standardised chronology at different elevations.

Parole chiave
tree-ring, chronology development, climate responses, Tian Shan Mountains