Radial growth trends of fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park (Poland)

Podlaski, Rafał

doi:10.17221/11897-jfs

Cited by 12 publications

(2 citation statements)

References 25 publications

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“…growth have been observed in various regions of Europe and Italy. Actually, changes in the climate-growth relationships have been verified during the 20 th century in Europe (Pretzsch et al, 2014;Linder et Calama, 2013;Bertini et al, 2011).For example, silver fir forests show a strong decrease in radial growth from the late 1950s to the 1970s in Slovenia (Torelli et al, 1999) and from the 1970s to the 1990s in Poland (Podlaski, 2002). Moreover, non-stationary responses of tree-ring chronologies to climate have been identified in the European Alps (Leonelli et al, 2011), and anomalous growth trends in silver fir have been identified since the 1960s in the Lower Bavarian region of Germany (Wilson et Elling, 2004) and in the Central Apennine Alps of Italy (Gallucci et Urbinati, 2009).…”

Section: Introduction Analysis Of Trends In Climate Variables In the Tuscanmentioning

confidence: 97%

Variability in Silver Fir Growth in the Tuscan Apennine Alps in the 20th Century

D'Aprile¹

2019

IJAEMS

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Climate variables have shown that monthly mean temperature (MT) and monthly rainfall (MR) are non-stationary in the Tuscan Apennine Alps during the 20th century; similarity between trends in monthly climate variables varies irregularly through time at the seasonal and monthly scales, and site. High variability and anomalies in silver fir (Abies alba Mill.) growth have been observed in various regions of Europe and Italy. This scenario has suggested to investigate if tree-ring chronologies in silver fir vary among sites during the 20th century in the Tuscan Apennine Alps, if there are differences in tree-ring growth at upper and lower elevation within silver fir forests, and if there are anomalous or unexpected growth patterns in tree-ring chronologies of silver fir. Results shows that similarity in Residual Tree-rings series (RTRs) varies highly, frequently, and irregularly during the 20th century among sites and, to a lesser extent, within silver fir forest sites in the Tuscan Apennine Alps. Unexpected patterns of growth occur in silver fir in the last decades of the 20th century; and similarity between RTRs of the silver fir study stands tends to reduce with increasing distance among sites. Results recommend monitoring and extend this and similar investigations in the view of the climate change scenarios recently provided by research where the impacts on the viability and possibly shift of silver fir populationsand other species -in their southern European range rise serious concerns.

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Section: Introduction Analysis Of Trends In Climate Variables In the Tuscanmentioning

confidence: 97%

Variability in Silver Fir Growth in the Tuscan Apennine Alps in the 20th Century

D'Aprile¹

2019

IJAEMS

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“…in mixture with Fagus sylvatica L. in various stands in Central Germany , or Pinus sylvestris L. in mixture with F. sylvatica and Abies alba Mill. in Poland (Podlaski 2002).…”

Section: Introductionmentioning

confidence: 99%

Diversity and tree neighborhood effects on the growth dynamics of European beech and the stand seed bank in temperate broad-leaved forests of variable tree diversity

Mölder¹

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Among the recent studies investigating species diversity's effect on ecosystem functioning, only few examine long-term changes. My study addresses this question based on seed bank analysis and dendrochronology in temperate deciduous forest stands in Hainich National Park (Thuringia, Germany). I focused on three main hypotheses i) species identity of the neighbor trees and their functional traits can significantly influence growth dynamics of Fagus sylvatica L. and the soil seed bank, while species diversity of the neighborhood is of no significance, ii) neighborhood diversity alters trees' capacity of reaction to disturbances, and iii) there are processes altering tree species diversity, growth patterns of F. sylvatica and the soil seed bank at the same time.The selected 12 forest stands, situated on similar bedrock, represent a gradient in tree species diversity. Samples were taken from monospecific beech stands (DL1), medium-diverse forests with beech, ash, and lime (DL2), and highly diverse stands dominated by beech, ash, lime, maple, and hornbeam (DL3). I investigated germinating seeds in three horizons (0-5cm, 5-10cm, 10-20cm) of the soil seed bank and determined seed density, composition and functional types of species.Furthermore, structural parameters of target Fagus trees and their neighbors were analyzed.Neighborhoods of target trees were grouped according to the relative importance of intraspecific competition by Fagus: from purely conspecific neighborhoods (Fagus100) to neighborhoods with mainly conspecific neighbors and few allospecific competitors (Fagus70-99) to neighborhoods with more than 30% of the canopy's influence sphere occupied by allospecific trees (Fagus<70). I examined tree-ring width and growth response to, as well as recovery from, selected stress events (negative pointer years). In addition, I studied δ 13In the period from 1926 to 1975, beech predominantly surrounded by conspecifics (Fagus100, Fagus70-99) reached higher values of δ 13 C than beech largely affected by allospecific competitors (Fagus<70). On the contrary, values of the more actual period 1976 to 2005 did not vary between the neighborhood classes. This leads to the conclusion that target trees, today surrounded by allospecific neighbors, probably benefited from thinning in order to promote growth of other valuable broad-leaved tree species. Thinning resulted in an increase in available soil water and growth. This increase in soil water is manifested in relatively smaller δ 13 C values in the largely allospecific Fagus<70 neighborhoods. The effect vanished when the canopy closed again. Hence, the observed δ 13 C pattern is probably rather a secondary effect of forest management than a direct effect of neighborhood diversity on water supply of Fagus.Disturbance regime, forest management and stand age are important for ecosystem processes in forests. They leave detectable traces in the soil seed bank, tree-ring width and δ 13 C series.Generally, I assume that the neighborhood represents an environmental factor of lower imp...

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European beech grows better and is less drought sensitive in mixed than in pure stands: tree neighbourhood effects on radial increment

Mölder

Leuschner

2014

Trees

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Radial growth trends of fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park (Poland)

Cited by 12 publications

References 25 publications

Variability in Silver Fir Growth in the Tuscan Apennine Alps in the 20th Century

Variability in Silver Fir Growth in the Tuscan Apennine Alps in the 20th Century

Diversity and tree neighborhood effects on the growth dynamics of European beech and the stand seed bank in temperate broad-leaved forests of variable tree diversity

European beech grows better and is less drought sensitive in mixed than in pure stands: tree neighbourhood effects on radial increment

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