Selective thinning of Arbutus unedo coppices following fire: Effects on growth at the individual and plot level

Quevedo, Lídia; Arnán, Xavier; Rodrigo, Anselm

doi:10.1016/j.foreco.2012.12.007

Cited by 11 publications

(5 citation statements)

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“…These unfavourable drier conditions are likely the reason for the smaller growth of resprouts in southern aspects (Konstantinidis et al, 2006). Results also suggest that the height of the dominant resprout increased with CS; a possible explanation to this could be that basal resprouts may have benefited from the lower competition for resources at the tree and/or at the site level, due to lower levels of epicormic resprouting and higher levels of understory elimination (Clarke et al, 2013;Quevedo et al, 2013).…”

Section: Basal Resproutingmentioning

confidence: 87%

Post-fire survival and regeneration of Eucalyptus globulus in forest plantations in Portugal

Catry

Moreira

Tujeira

et al. 2013

Forest Ecology and Management

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Eucalyptus globulus is one of the most important pulpwood plantation species in the world, and nowadays it is present in most continents. Some of the regions where E. globulus plantations have been expanding have a high incidence of wildfires; therefore, knowing the factors affecting the fire resistance and resilience of this species is particularly important for forest management. This is the case of Portugal, where nearly 1.4 million ha of land burned in the last decade and where E. globulus has become the most widespread tree species. In this paper we assessed the short-term post-fire responses of E. globulus trees in four sites affected by wildfires, and investigated their potential relationships with fire severity descriptors and with tree and stand characteristics. One year after fire, individual tree mortality was low (3.9%) but most trees (79.2%) were top-killed (i.e. had stem mortality). Both post-fire tree mortality and top-kill increased with fire severity (expressed by maximum char height and/or char severity rating). Moreover, top-kill was positively related with vegetation cover and the proportion of pine trees in the stand, and was negatively related with tree diameter and the proportion of other broadleaved trees in the stand. The most common post-fire regeneration type among the sampled trees was basal resprouting (89.2%), though 20.9% had epicormic resprouting. The number of basal resprouts increased with char height, top-kill and diameter of the parent tree, and decreased with slope. In terms of post-fire growth, the height of the dominant resprout increased with the number of resprouts and with char severity, while it decreased in drier southern aspects. Results showed that E. globulus is a fire-resilient species with a very high probability of surviving fire; however, in forest plantations where trees are usually felled in short rotations (thus with limited size), individuals have a high probability of being top-killed. The presented models may be useful to help managers on the assessment of post-fire production losses and regeneration potential in E. globulus plantations.

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Section: Basal Resproutingmentioning

confidence: 87%

Post-fire survival and regeneration of Eucalyptus globulus in forest plantations in Portugal

Catry

Moreira

Tujeira

et al. 2013

Forest Ecology and Management

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“…These characteristics make A. unedo interesting from an ecological point of view since it can be grown in poor marginal lands where other plants hardly thrive. The ability to sprout following fires is also important (Quevedo et al 2013). Strawberry tree fruits are round red berries and have interesting nutritional properties (Özcan and Haciseferoğullai 2007, Ruiz-Rodríguez et al 2011, Miguel et al 2014, Oliveira and Franco 2015.…”

Section: Introductionmentioning

confidence: 99%

Shoot proliferation and organogenesis on Arbutus unedo: physiological analysis under water stress

Martins¹,

Correia²,

Correia³

et al. 2019

Biologia plant.

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“…Also, thinning strips randomly removed entire genets and stems within a genet, for which greater variability is expected in this thinning system. This is due to different mechanisms favoring the growth of the retained stems, such as diminishing competition within a genet (e.g., more starch for retained sprouts) and between genets that compete for the same resources (Quevedo et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Early response of Nothofagus antarctica forests to thinning intensity in northern Patagonia

et al. 2021

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Nothofagus antarctica (G. Forst.) Oerst. stands of northern Patagonia (Argentina) have great potential to provide multiple ecosystem services. Nonetheless, the lack of basic information limits the application of silvicultural treatments to this forest type. This study reports the early response to three systematic strip thinning treatments (30, 50, and 70%) carried out during 2013 in a 30-year N. antarctica stand, where control plots (i.e. no thinning) were also established. Subplots were located within each plot. Basal diameters (BD) of all retained stems were measured in the non-vegetative season (winter) of 2016, 2017 and 2018, to calculate basal diameter annual increment (BDI), and stand volume growth. BDI ranged from 1.9 mm year-1 in the control plots to 2.7 mm year-1 at 70% thinning. Relative BDI also responded positively to thinning intensity. Stand volume growth decreased non-linearly with thinning intensity, from 3.36 m3 ha-1 year-1 in the control plots, and 0.71 m3 ha-1 year-1 when thinning was 70%. Smaller differences were observed between control plots, 30% thinning and 50% thinning. Our results show that Nothofagus antarctica forests, in the stem exclusion stage, respond to strip thinning. Thus, silviculture based on this management system could favor the development of retained trees without losing productivity if it remains under 50% intensity. This outcome represents an important incremental contribution to the design of silvicultural interventions in northern Patagonia.

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Selective thinning of Arbutus unedo coppices following fire: Effects on growth at the individual and plot level

Cited by 11 publications

References 50 publications

Post-fire survival and regeneration of Eucalyptus globulus in forest plantations in Portugal

Post-fire survival and regeneration of Eucalyptus globulus in forest plantations in Portugal

Shoot proliferation and organogenesis on Arbutus unedo: physiological analysis under water stress

Early response of Nothofagus antarctica forests to thinning intensity in northern Patagonia

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