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Spatial dynamics of alpine tree lines under global warming: What explains the mismatch between tree densification and elevational upward shifts at the tree line ecotone?
Journal of Biogeography ( IF 3.4 ) Pub Date : 2019-12-30 , DOI: 10.1111/jbi.13779
Thierry Feuillet 1, 2 , Déborah Birre 3 , Johan Milian 1, 2 , Vincent Godard 1, 2 , Céline Clauzel 2, 4 , Roberto Serrano‐Notivoli 5
Affiliation  

Most studies focusing on the alpine tree line responses to climate warming have used either the tree densification within the ecotone or its elevational upshift as indicators. However, it is acknowledged that the relationship between densification and upshift is spatially heterogeneous, making inferences and comparability among studies tricky. The lack of consistent empirical evidence on this potential mismatch and its drivers leads us to focus on this issue in this study. The aim was twofold: (a) to quantify the mismatch between the two processes at a regional scale, and (b) to identify its site‐specific determinants.

中文翻译:

全球变暖下的高山林线的空间动态:是什么解释了树木密生度和林线交错带海拔向上变化之间的不匹配?

大多数针对高山林线对气候变暖的响应的研究都使用了过渡带内的树木致密化或其海拔升高作为指标。但是,公认的是,致密化和升档之间的关系在空间上是异质的,这使得研究之间的推论和可比性变得棘手。对于这种潜在的失配及其驱动因素缺乏一致的经验证据,导致我们在本研究中将重点放在这个问题上。目的是双重的:(a)在区域范围内量化两个过程之间的不匹配,以及(b)识别其特定地点的决定因素。
更新日期:2019-12-30
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