Water stress limits transpiration and growth of European larch up to the lower subalpine belt in an inner-alpine dry valley

© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 220(2018), 2 vom: 01. Okt., Seite 460-475
1. Verfasser: Obojes, Nikolaus (VerfasserIn)
Weitere Verfasser: Meurer, Armin, Newesely, Christian, Tasser, Erich, Oberhuber, Walter, Mayr, Stefan, Tappeiner, Ulrike
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't climate change dendrometer elevation transect radial stem variations sap flow tree ring width tree water status Water 059QF0KO0R
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520 |a Climate change will further constrain water availability in dry inner-alpine environments and affect water relations and growth conditions in mountain forests, including the widespread larch forests. To estimate the effects of climate conditions on water balance and growth, variation in sap flow and stem radius of European larch was measured for 3 yr along an elevation transect from 1070 to 2250 m above sea level (asl) in an inner-alpine dry valley in South Tyrol/Italy. Additionally, long-term climate-growth relations were derived from tree cores. Sap flow and radial growth were reduced in dry periods up to an elevation of 1715 m, leading to maximum annual growth at 2000 m. In a wet year no growth difference between elevations was observed. Long-term tree ring data showed a positive growth response to precipitation up to 1715 m and to temperature only above 2000 m. Our results demonstrate that reduced water availability and higher atmospheric water demand limit larch at low elevation within dry Alpine regions. This indicates a general upward shift of this species' elevational amplitude upon climate change, and respective negative effects on future silvicultural use and ecosystem services at lower elevations in the European Alps 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a climate change 
650 4 |a dendrometer 
650 4 |a elevation transect 
650 4 |a radial stem variations 
650 4 |a sap flow 
650 4 |a tree ring width 
650 4 |a tree water status 
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700 1 |a Meurer, Armin  |e verfasserin  |4 aut 
700 1 |a Newesely, Christian  |e verfasserin  |4 aut 
700 1 |a Tasser, Erich  |e verfasserin  |4 aut 
700 1 |a Oberhuber, Walter  |e verfasserin  |4 aut 
700 1 |a Mayr, Stefan  |e verfasserin  |4 aut 
700 1 |a Tappeiner, Ulrike  |e verfasserin  |4 aut 
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773 1 8 |g volume:220  |g year:2018  |g number:2  |g day:01  |g month:10  |g pages:460-475 
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