The influence of the spatial pattern of trees on forest floor vegetation and silver fir (Abies alba Mill.) regeneration in uneven-aged forests

Paluch, Jarosław

doi:10.1016/j.foreco.2004.10.010

Cited by 63 publications

(42 citation statements)

References 41 publications

(42 reference statements)

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“…The existence of the fir and spruce regeneration in clumps was supported by a number of authors (e.g. Grassi et al 2004;Paluch 2005bPaluch , 2006. This fact is probably given in spruce trees by the past tending interventions in the area of research (Souček 2007).…”

Section: Discussionmentioning

confidence: 88%

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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Section: Discussionmentioning

confidence: 88%

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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“…The natural regeneration of forest communities is a complex process driven by different factors and shaped by the ecological and demographic characteristics of the species, disturbance history and stochastic events (Paluch 2005). Regeneration involves many stages in the life cycle of plants, from the budding of flowers to the survival and recruitment of established seedlings (Madsen and Larsen 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Topography, which influences temperature and water regimes (Madsen and Larsen 1997), understory cover (Dobrowolska 1998;Kitzberger 2000) and the formation of a soil seed bank (Enrico et al 2004) also significantly affect the establishment and survival of tree seedlings. The impact of herbivores (Paluch 2005), pathogens (Auspurguer 1983) and competition with grass (De Steven 1991) can hinder regeneration success.…”

Section: Introductionmentioning

confidence: 99%

Environmental influences on post-harvest natural regeneration of Pinus pinaster Ait. in Mediterranean forest stands submitted to the seed-tree selection method

2010

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Background:Research on natural regeneration is crucial for the development of sustainable forestry practices, in light of the global climate changes taking place. In this study one hundred and fifty-one plots were sampled in six Pinus pinaster stands that were naturally regenerated by the seed-tree method in Mediterranean forests in central Spain. Objective:The objectives of the survey were to study the suitability of different forest stands designated for natural regeneration as well as to analyse seedling establishment and the relationship between regeneration and different site factors. Analysis of variance (ANOVA) and multivariate analysis with canonical ordination techniques were employed. Full and partial redundancy analyses (RDAs) on a correlation matrix were used to carry out a direct gradient analysis of regeneration density as a function of site factors.Results: Nearly all stands presented seedling densities over 2000 seedlings/ha and were thus found to be suitable for natural regeneration of Pinus pinaster by the seed-tree selection method. Significant variables that best explained total seedling and viable seedling density were spring and autumn precipitation of the year prior to establishment, spring and summer precipitation of the year of establishment, and percentage cover of litter. There were no signs of competition between shrubs and seedlings, but a negative significant correlation with grass cover was observed. Pinus pinaster natural regeneration was successful with the seed-tree method, although it appeared to be highly dependent on climate and stand conditions.

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“…Taking into account that the large firs produce a considerable needle mass (Burger 1942), provide an ample fall of decomposition-resistant litter (Otto 1994) in their neighbourhood (Hirabuki 1991), intercept precipitation and modify its chemical properties (Janek 2002), and influence the soil through their roots, it is likely that they could considerably affect the humus form and characteristics of the upper soil horizons (Boettcher, Kalisz 1990;Ruark, Zarnoch 1992;Liski 1995). This assumption was confirmed by findings of Paluch (2005b), who in stand patches characterised by higher local basal area found more frequent occurrence of forest floor plant species associated with mesic sites, and in gaps and canopy openings more abundant occurrence of species associated with fertile sites. Moreover, in gaps and canopy openings, despite moderate forest floor vegetation coverage, seedlings of silver fir were usually absent.…”

Section: Discussionmentioning

confidence: 84%

“…Trees directly modify microclimatic conditions on the forest floor (Pukkala et al 1993;Canham et al 1994;Parker 1997;Gray et al 2002), exert influence on characteristics of the soil through root systems and litter-fall (Hirabuki 1991;Liski 1995;Dieffenbach, Matzner 2000;Hinsinger et al 2003), change physical and chemical properties of precipitation (Janek 2002), and form habitats for animals and forest floor vegetation (Paluch 2005b). Therefore, it seems likely that the spatial pattern of trees also affects the spatial pattern of regeneration.…”

mentioning

confidence: 99%

Factors controlling the regeneration process in unevenly aged silver fir forests: inferences from the spatial pattern of trees

Paluch¹

2006

J. For. Sci.

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ABSTRACT:The main objective of this study was to prove the relationship between the spatial pattern of trees and distribution of advanced regeneration in structured Abies alba Mill. forests in the Western Carpathians (of southern Poland). In 13 sample plots (0.45-1.00 ha in size), the locations of all live trees above 15 cm in d 1.3 and all stumps of canopy trees (above 50 cm in d 1.3 ) were determined. In addition, in all plots the coordinates of all live and dead polestage trees (5-15 cm in d 1.3 ), in seven plots the coordinates of all live and dead younger saplings (0.5-1.3 m in height), and in eight plots the coordinates of all live and dead older saplings (above 1.3 m in height and below 5 cm in d 1.3 ) were registered. The univariate and bivariate Ripley's K-function was applied to test spatial independence of the patterns of trees representing different size categories. In each of the stands, younger and older saplings and pole-stage trees showed an aggregated pattern. The strongest attraction between trees of these size categories was detected at the scale 6, 5 and 10 m, respectively. At the scale below 10 m, a positive spatial correlation was frequently found between large firs and pole-stage trees and saplings. A spatial repulsion between advanced fir regeneration and trees of the middle stand layer was negligible or observable only in a relatively large scale above 15 m. The patterns of saplings and trees of the lower stand layer appeared to be spatially independent in most of the stands being studied. These results suggest that in unevenly aged fir forests, a stable mechanism is generating the aggregated patterns of regeneration functions and the factors involved are spatially linked with the distribution of large firs. Therefore, a hypothesis is advanced that the spatial pattern of regeneration in such forests is controlled by edaphic factors -in particular, the humus form -and that light conditions play only a secondary role.

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The influence of the spatial pattern of trees on forest floor vegetation and silver fir (Abies alba Mill.) regeneration in uneven-aged forests

Cited by 63 publications

References 41 publications

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

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

Environmental influences on post-harvest natural regeneration of Pinus pinaster Ait. in Mediterranean forest stands submitted to the seed-tree selection method

Factors controlling the regeneration process in unevenly aged silver fir forests: inferences from the spatial pattern of trees

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