The climate sensitivity of Norway spruce [Picea abies (L.) Karst.] in the southeastern European Alps |
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Authors: | Tom Levanič Jožica Gričar Mary Gagen Risto Jalkanen Neil J Loader Danny McCarroll Primož Oven Iain Robertson |
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Institution: | 1. Slovenian Forestry Institute, Ve?na pot 2, 1000, Ljubljana, Slovenia 3. Department of Geography, Swansea University, Singleton Park, Swansea, SA2 8PP, UK 2. Metla Rovaniemi Research Unit, Etel?ranta 55, 96300, Rovaniemi, Finland 4. Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Ro?na dolina, cesta VIII/34, 1000, Ljubljana, Slovenia
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Abstract: | To investigate the potential of Norway spruce (Picea abies L. Karst) as a palaeoclimate archive in the southeastern European Alps, tree ring chronologies were developed from trees
growing at two sites in Slovenia which differed in their ecological and climatological characteristics. Ring width, maximum
latewood density, annual height increment and latewood cellulose carbon isotope composition were determined at both sites
and the resulting time-series compared with and verified against instrumental climate data for their common period (AD 1960–AD
2002). Results indicate that ring width sensitivity to summer temperature is very site-dependent, with opposing responses
at alpine and lowland sites. Maximum density responds to September temperatures, indicating lignification after cell division
has ceased. Stable carbon isotopes have most potential, responding strongly to summer temperature in both alpine and lowland
stands. Height increment appears relatively insensitive to climate, and is likely to be dominated by local stand dynamics. |
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Keywords: | Wood formation Height increment Latewood density Stable carbon isotope Southeastern Alps |
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