Growth-limiting factors and climate response variability in Norway spruce (Picea abies L.) along an elevation and precipitation gradients in Slovenia
Norway spruce (Picea abies L.) is among the most sensitive coniferous species to ongoing climate change. However, previous studies on its growth response to increasing temperatures have yielded contrasting results (from stimulation to suppression), suggesting highly site-specific responses. Here, we present the first study that applies two independent approaches, i.e. the nonlinear, process-based Vaganov-Shashkin (VS) model and linear daily response functions. Data were collected at twelve sites in Slovenia differing in climate regimes and ranging elevation between 170 and 1300 m a.s.l. VS model results revealed that drier Norway spruce sites at lower elevations are mostly moisture limited, while moist high-elevation sites are generally more temperature limited. Daily response functions match well the pattern of growth-limiting factors from the VS model and further explain the effect of climate on radial growth: prevailing growth-limiting factors correspond to the climate variable with higher correlations. Radial growth correlates negatively with rising summer temperature and positively with higher spring precipitation. The opposite response was observed for the wettest site at the highest elevation, which positively reacts to increased summer temperature and will most likely benefit from a warming climate. For all other sites, the future radial growth of Norway spruce largely depends on the balance between spring precipitation and summer temperature.
2020
2020-10-21 10:08:37
1033
Vaganov-Shashkin model, climate-growth correlations, tree rings, process-based modelling, dendroTools, dendroclimatology
Vaganov-Shashkin model, korelacije med klimo in rastjo, branike, precesno modeliranje, dendroTools, dendroklimatologija
Jernej
Jevšenak
70
Ivan
Tychkov
70
Jožica
Gričar
70
Tom
Levanič
70
Jan
Tumajer
70
Peter
Prislan
70
Domen
Arnič
70
Margarita
Popkova
70
Vladimir V.
Shishov
70
UDK
4
630*56:630*111
ISSN pri članku
9
0020-7128
DOI
15
10.1007/s00484-020-02033-5
COBISS_ID
3
33341955
OceCobissID
13
25638400
RAZ_Jevsenak_Jernej_i2020.pdf
2031751
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2020-10-21 10:12:27
0
Izvorni URL
2020-10-21 10:08:43