| DOI: | 10.3354/cr01370
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| Scopus记录号: | 2-s2.0-84964053393
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| 论文题名: | Thermal characteristics of alpine treelines in Central Europe north of the Alps |
| 作者: | Kašpar J.; Treml V.
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| 刊名: | Climate Research
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| ISSN: | 0936577X
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| 出版年: | 2016
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| 卷: | 68, 期:1 | | 起始页码: | 1
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| 结束页码: | 12
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| 语种: | 英语
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| 英文关键词: | Alpine areas
; Carpathians
; Harz
; Sudetes
; Temperature metrics
; Treeline
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| Scopus关键词: | alpine environment
; elevation
; growing season
; growth response
; isotherm
; mountain region
; temperature gradient
; tree
; treeline
; Alps
; Carpathians
; Germany
; Harz Mountains
; Sudetes
; Western Carpathians
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| 英文摘要: | Alpine treeline ecotones north of the Alps in Central Europe occur in 11 mountain ranges, including the Harz Mountains (Germany), mountain chains of the High Sudetes (Czech Republic and Poland) and the Western Carpathians (Czech Republic, Poland and Slovakia). These mountains are characterized by pronounced maritime-continental gradients, large differences in the mass elevation effect, and varying distance between the treeline and summits. We evaluated how these factors influence treeline temperatures and thus treeline elevation. We compared various treeline temperature metrics for all mountain ranges in the study region both among the mountain ranges and with treeline temperatures in the Alps. Our results show that treelines along the 50th parallel increase their elevation by approximately 94 m per 100 km to wards the east, a reflection of a rise in elevation of isotherms of growing season temperatures along the maritimecontinental gradient and with increasing mass elevation effect. Among the majority of evaluated mountain ranges, growing season treeline temperatures did not differ significantly, suggesting identical thermal limitation of tree growth in these ranges. However, we identified 4 regions (the Harz, Králicki Sněžník, Hrubi Jeseník and Velká Fatra Mountains) where the uppermost tree stands are situated below the common treeline isotherm, an indication that trees are limited by other factors (e.g. biomass loss). Based on a comparison of various treeline temperature metrics, we suggest that to reliably describe treeline climates in regions with pronounced maritimecontinental gradients, it is necessary to use metrics capturing the entire growing season. Such metrics show that treeline temperatures in the study region are similar to those in the Alps. © Inter-Research 2016. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/116414
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| Appears in Collections: | 气候减缓与适应
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| Recommended Citation: | |
Kašpar J.,Treml V.. Thermal characteristics of alpine treelines in Central Europe north of the Alps[J]. Climate Research,2016-01-01,68(1)
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