globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12525
Scopus记录号: 2-s2.0-84946236104
论文题名:
Water availability predicts forest canopy height at the global scale
作者: Klein T.; Randin C.; Körner C.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期:12
起始页码: 1311
结束页码: 1320
语种: 英语
英文关键词: Evapotranspiration ; Forest suppression ; Hydraulic constraints ; Range limits ; Tree height
Scopus关键词: annual variation ; evapotranspiration ; forest canopy ; forest dynamics ; global perspective ; growth rate ; hydrological regime ; precipitable water ; range size ; spatial resolution ; water availability ; water stress ; biological model ; forest ; growth, development and aging ; temperature ; tree ; water cycle ; Forests ; Models, Biological ; Temperature ; Trees ; Water Cycle
英文摘要: The tendency of trees to grow taller with increasing water availability is common knowledge. Yet a robust, universal relationship between the spatial distribution of water availability and forest canopy height (H) is lacking. Here, we created a global water availability map by calculating an annual budget as the difference between precipitation (P) and potential evapotranspiration (PET) at a 1-km spatial resolution, and in turn correlated it with a global H map of the same resolution. Across forested areas over the globe, Hmean increased with P-PET, roughly: Hmean (m) = 19.3 + 0.077*(P-PET). Maximum forest canopy height also increased gradually from 5 to ~ 50 m, saturating at ~ 45 m for P-PET > 500 mm. Forests were far from their maximum height potential in cold, boreal regions and in disturbed areas. The strong association between forest height and P-PET provides a useful tool when studying future forest dynamics under climate change, and in quantifying anthropogenic forest disturbance. © 2015 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107897
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作者单位: Institute of Botany, University of Basel, Schönbeinstrasse 6, Basel, Switzerland; Department of Ecology and Evolution, University of Lausanne, Basel, Switzerland

Recommended Citation:
Klein T.,Randin C.,Körner C.. Water availability predicts forest canopy height at the global scale[J]. Ecology Letters,2015-01-01,18(12)
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