Growth, photosynthesis, and needle structure of silver fir (Abies alba Mill.) seedlings under different canopies

Robakowski, Piotr; Wyka, Tomasz P.; Samardakiewicz, Sławomir; Kierzkowski, Daniel

doi:10.1016/j.foreco.2004.06.029

Cited by 91 publications

(81 citation statements)

References 38 publications

(35 reference statements)

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“…The tallest and thickest plants with the greatest increment of main shoots or offshoots grew under the larch stand, where the length and width of needles were significantly greater than on other plots. Fir needles from the larch stand were not only thicker but also had greater dimensions of some internal structures (Robakowski et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…A large A. alba reintroduction project in forest stands of Karkonoski National Park began in 1999 (Barzdajn 2000). Robakowski et al (2004) investigated the ecophysiological performance of young trees under varying degrees of natural shade. However, it is still little known about the biometric features of fir regeneration and the effect of different tree canopies on the quality of light conditions.…”

mentioning

confidence: 99%

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Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains

Dobrowolska¹

2008

J. For. Sci.

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ABSTRACT:The main task of the study was to investigate the growth conditions of silver fir natural regeneration in the Karkonosze Mts. (Poland). The paper examines the quantity and quality of light reaching the forest floor in stands of different canopies. The aim of the study was also to define the optimal site conditions for silver fir planting under stand canopy. Data on the natural regeneration and stand structure of each investigated stand were collected on circular plots in a grid of 15 × 15 m in 1999 and 2000. Biometric measurements of fir plants planted under various stand canopies were done three times (May 1999(May , autumn 2000(May and 2001. It was found that the fir was not a dominant tree in all size classes from seedlings to saplings. Seedlings (both phases) of spruce, beech, sycamore and rowan occurred in all studied stands. The optimal conditions for fir development were found under larch canopy. That was demonstrated by the highest increment of height, diameter and offshoots. The worst conditions for fir growth were under beech and spruce canopy, which was indicated by the lowest diameter and height. The highest PAR was recorded under pine canopy, whereas the lowest one under beech canopy. Beech stand induced a lower R:FR ratio than the other tree species both on sunny and cloudy days. The highest R:FR ratio was found under the canopy of larch and pine stands.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains

Dobrowolska¹

2008

J. For. Sci.

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“…5). It is known that the fir regenerates well under the crowns of birch and pine (Dobrowolska 1998) or larch (Robakowski et al 2004), thus under the light-demanding species, particularly in comparison with the poor regeneration under firs or spruces (Ammer 1996). However, the respective light-demanding species in the area of research do not usually take up a large part of the species composition.…”

Section: Discussionmentioning

confidence: 99%

Spatial pattern of Norway spruce and silver fir natural regeneration in uneven-aged mixed forests of northeastern Bohemia

Hofmeister¹,

Svoboda²,

Souček³

et al. 2008

J. For. Sci.

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Two permanent sample plots (both 0.25 ha) were established in a mixed forest in the Orlické hory Mts. Protected Landscape Area (northeastern Bohemia) to analyze the natural regeneration of Norway spruce (Picea abies [L.] Karst.) and silver fir (Abies alba Mill.). All the seedlings (height 0.1-0.5 m), saplings (height 0.5 m, d 1.3 3 cm) and trees (d 1.3 > 3 cm) were localized and measured. The analysis of the spatial pattern and statistical evaluation were carried out by means of Ripley's K-function. All the growth stages of the spruce and the fir showed an aggregated (clump) pattern, whereas the regeneration of fir was positively correlated with mature spruces and the regeneration of spruce was in a positive relation with mature firs. The results indicate that for germination and stable growth in the first stages of development, the fir can find more favourable conditions under the crowns of spruce trees and the spruce under mature firs.

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“…10), meaning that in the centres the foliage suffers from shading lim itations of ground vegetation cover. On the other hand in A. alba total seedling biomass and total leaf area respond positively to in creasing irradiance (Robakowski et al 2004). …”

Section: Specific Leaf Areamentioning

confidence: 99%

Effects of gap size and within-gap position on seedlings establishment in silver fir stands

Albanesi¹,

Gugliotta²,

Mercurio³

et al. 2008

iForest

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Growth, photosynthesis, and needle structure of silver fir (Abies alba Mill.) seedlings under different canopies

Cited by 91 publications

References 38 publications

Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains

Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains

Spatial pattern of Norway spruce and silver fir natural regeneration in uneven-aged mixed forests of northeastern Bohemia

Effects of gap size and within-gap position on seedlings establishment in silver fir stands

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