Tree variables related to growth response and acclimation of advance regeneration of Norway spruce and other coniferous species after release

Metslaid, Marek; Jõgiste, Kalev; Nikinmaa, Eero; Moser, W. Keith; Porcar‐Castell, Albert

doi:10.1016/j.foreco.2007.03.009

Cited by 33 publications

(28 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, SLA and LAR have often been taken as speciesspecific traits, at least for co-specific individuals growing under similar conditions (e.g. Poorter and de Jong 1999;Metslaid et al 2007). Nowadays, the use of architectural criteria and the consideration of morphogenetic gradients are unavoidable preconditions for inter-specific comparisons of woody plants with regard to their resource allocations to leaves and stems.…”

Section: Structural Axis Differentiation In Nothofagusmentioning

confidence: 99%

Growth-unit structure in trees: effects of branch category and position on Nothofagus nervosa, N. obliqua and their hybrids (Nothofagaceae)

Puntieri

Ghirardi

2010

Trees

View full text Add to dashboard Cite

In plants with rhythmic growth, a branch segment extended in one event is known as growth unit (GU). GU structure, resulting from the resources allocated to stem length, volume and mass, and to leaf area and mass, is relevant for understanding branch functioning in the context of plant development. This study compares GU structure between main branches and short branches positioned at low and high positions on nursery-grown trees of three closely related genetic entities: Nothofagus nervosa, N. obliqua and natural hybrids between these species. GUs of short branches, compared to those of main branches, had lower length, diameter and number of leaves, and higher specific leaf area (SLA), stem density and proportional mass in leaves than in stems. GUs at high position on the trees had a higher proportion of their mass in stem than in leaves and a lower SLA than those at low position. Stem density was higher for N. nervosa and the hybrid trees than for N. obliqua. Most other GU traits did not differ statistically between the considered genetic entities. The three genetic entities exhibited distinct patterns of variation in leaf size with leaf position along main-branch GUs. The individual tree had a significant effect on most variables. GU structure would have a major ontogenetic component and would play a relevant role in the architecture of Nothofagus species and their adaptation to different environmental conditions.

show abstract

Section: Structural Axis Differentiation In Nothofagusmentioning

confidence: 99%

Growth-unit structure in trees: effects of branch category and position on Nothofagus nervosa, N. obliqua and their hybrids (Nothofagaceae)

Puntieri

Ghirardi

2010

Trees

View full text Add to dashboard Cite

show abstract

“…Saplings have to survive low temperatures, thick layer of long-lasting snow cover, lack of light and moisture (Cunningham et al 2006). With increasing growth of spruce saplings and increased height increment (Metslaid et al 2007) they develop resistance and sapling stability (Hanssen 2003;Grassi et al 2004;Zenáhlíková et al 2011). Mortality or violation (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…In these areas the issue of regeneration development and survival on decaying logs is crucial for forest dynamics. Environmental conditions change after a severe disturbance event that results in the death of parent stands, creating open canopy conditions that enable increased light exposure and subsequently more favourable conditions for regeneration growth (Metslaid et al 2007). On the other hand, after a disturbance event, an increase in surface temperature (Hais, Kuera 2008) in combination with periods of drier weather in the previous years (Matjka 2011) can cause desiccation of logs and subsequent sapling mortality.…”

mentioning

confidence: 99%

Stand-replacing disturbance does not directly alter the succession of Norway spruce regeneration on dead wood

2014

View full text Add to dashboard Cite

Density of regeneration in European subalpine Norway spruce (Picea abies) forests is typically low with regeneration primarily located on dead or decaying wood. The post-disturbance development of this regeneration is crucial for natural forest succession. The aim was to identify the influence of disturbance on regeneration on decaying logs immediately after a severe disturbance event. Study plots were established in two subalpine spruce forests: the first, an undisturbed site located in the Hrubý Jeseník Mts. and the second site in the Šumava Mts. that has experienced recent severe disturbance. Regeneration density increased between 2008 and 2011 by 7% (0.29 individuals per square meter of log) at the undisturbed site and by 33% (3.24 individuals per square meter of log) at the disturbed site. The increased regeneration density observed at the disturbed site was mostly associated with the smallest saplings. The highest increase in regeneration density was observed on logs with the largest diameters. Three years after severe disturbance caused 100% mortality of the parent stand in the Bohemian Forest, no significant effect was recorded on the growth rate and survival of established spruce saplings on dead wood.

show abstract

“…150-1,000 m 2 (Nakashizuka 1989), and depend on major disturbances for their establishment. In contrast, shade-tolerant species, being able to survive under the canopy for a long time waiting for gap formation and then resume growth (Metslaid et al 2005a(Metslaid et al , 2007Nagel et al 2010), will benefit from the reduced competition after single wind-thrown trees under gap-phase dynamics. In this sense, the impact of an intermediate severity disturbance regime has received relatively little attention as compared to these extremes (Papaik and Canham 2006;Hanson and Lorimer 2007), whereas Polyachenko et al (in preparation) conclude that intermediate damage levels induce the most unstable microsite conditions considering the high chances of delayed storm effects here.…”

Section: Regeneration Strategiesmentioning

confidence: 99%

The influence of storm-induced microsites to tree regeneration patterns in boreal and hemiboreal forest

Vodde

Jõgiste

Kubota

et al. 2011

Journal of Forest Research

Self Cite

View full text Add to dashboard Cite

We reviewed studies dealing with regeneration under variable conditions in boreal and hemiboreal forests as affected by different microsite types by tree species functional groups. Generally, the importance of storminduced microsites for regeneration dynamics in boreal forests depends on several factors: (1) distribution and type of microsites (generated by storm characteristics and stand conditions); (2) viable seed supply (stand history, species dispersal traits and status of surviving trees) and their species' life history strategy; (3) climatic and site conditions (pre-storm conditions and storm-induced changes); and (4) delayed storm effects, such as retarded falling of trees, favoured vegetation growth, etc. Studies acknowledging the significance of microsites were mostly related to intermediate or severe events, causing sufficient changes in resource levels and growth conditions, and influencing extrinsic factors such as frost heaving, erosion and browsing. Also, the dispersal traits of available tree species, including sprouting and response of surviving trees, such as canopy expansion, should be considered in evaluating microsite importance in individual cases. In intermediate to severe windstorm events, pioneer species are generally profiting most from the additional offer in microsites, requiring bare mineral soil and elevated locations for their establishment and growth. Under gap dynamics, shade-tolerant species benefit from dead wood and elevated locations as these offer safe sites in stands with abundant understorey vegetation.

show abstract

Tree variables related to growth response and acclimation of advance regeneration of Norway spruce and other coniferous species after release

Cited by 33 publications

References 61 publications

Growth-unit structure in trees: effects of branch category and position on Nothofagus nervosa, N. obliqua and their hybrids (Nothofagaceae)

Growth-unit structure in trees: effects of branch category and position on Nothofagus nervosa, N. obliqua and their hybrids (Nothofagaceae)

Stand-replacing disturbance does not directly alter the succession of Norway spruce regeneration on dead wood

The influence of storm-induced microsites to tree regeneration patterns in boreal and hemiboreal forest

Contact Info

Product

Resources

About