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Responses to climate change in radial growth of Picea schrenkiana along elevations of the eastern Tianshan Mountains, northwest China
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jiao, Liang Jiang, Yuan Li Wang, Mingchang Kang, Xinyu Zhang, Wentao Zhang, Lingnan Zhao, Shoudong |
| Copyright Year | 2016 |
| Abstract | Abstract Tree growth is largely driven by climate conditions in arid and alpine areas. A strong change in climate from warm-dry to warm-wet has already been observed in northwest China. However, little is known about the impacts of regional climate variability on the radial growth of trees along elevations of the eastern Tianshan Mountains. Consequently, we developed three tree-ring width chronologies of Schrenk spruce ( Picea schrenkiana Fisch. et Mey.) ranging in elevation from 2159 to 2552 m above sea level (a.s.l.), which play an important role in the forestry ecosystem, agriculture, and local economy of Central Asia. In our study, the correlation analyses of growth-drought using the monthly standardized precipitation-evapotranspiration index (SPEI) at different temporal scales demonstrated that drought in growing season was the main factor limiting tree growth, regardless of elevation. The relationships between radial growth of Schrenk spruce and main climate factors were relatively stable by moving correlation function, and the trend of STD chronologies and basal area increment (BAI) also showed a synchronous decline across the three elevations in recent decades. And meanwhile, slight differences in responses to climate change in radial growth along elevations were examined. The drought stress increased as elevations decreased. Radial growth at the higher elevation depended on moisture availability due to high temperature, as indicated by the significant negative correlation with mean temperature in the late growing season of the previous year (August-September, p 2 yr −1 /decade, p 2 yr −1 /decade, p 2 yr −1 /decade, p |
| Starting Page | 117 |
| Ending Page | 127 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.dendro.2016.09.002 |
| Alternate Webpage(s) | http://ires.bnu.edu.cn/uploadfile/2017/0223/58ae8ad4b89b8.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.dendro.2016.09.002 |
| Volume Number | 40 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
