Climate-Growth Relations of Abies georgei along an Altitudinal Gradient in Haba Snow Mountain, Southwestern China
| Autor: | Dingcai Yin, Kun Tian, Mei Sun, Weiguo Zhang, Yun Zhang, Jianing Li, Renjie Cao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
geography
Plateau geography.geographical_feature_category Global warming Climate change Forestry growth response Atmospheric sciences Snow tree-ring radial growth climate change Hengduan Mountain Dendrochronology Environmental science Relative humidity Precipitation Northwestern Yunnan Plateau QK900-989 Plant ecology Subalpine forest |
| Zdroj: | Forests, Vol 12, Iss 1569, p 1569 (2021) Forests Volume 12 Issue 11 |
| ISSN: | 1999-4907 |
| Popis: | Climate warming has been detected and tree growth is sensitive to climate change in Northwestern Yunnan Plateau. Abies georgei is the main component of subalpine forest in the area. In this study, A. georgei ring width chronologies were constructed at four sites ranging from 3300 to 4150 m a.s.l. in Haba Snow Mountain, Southeastern edge of Tibetan Plateau. We analyzed the relationship between four constructed chronologies and climatic variables (monthly minimum temperature, monthly mean temperature, monthly maximum temperature, monthly total precipitation, the Standardized Precipitation-Evapotranspiration Index, and monthly relative humidity) by using response function analysis, moving interval analysis, and redundancy analysis. Overall, the growth of A. georgei was positively affected by common climatic factors (winter moisture conditions, autumn temperature, and previous autumn precipitation). At low and middle-low sites, May moisture condition and previous December precipitation controlled its radial growth with positive correlations. At middle-high and high sites, previous November temperature was the key factor affecting tree growth. The result of moving interval analysis was consistent with correlation analyses, particularly for May moisture at low altitudes. |
| Databáze: | OpenAIRE |
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