Influence of thinning intensity and canopy type on Scots pine stand and growth dynamics in a mixed managed forest

Primicia, Irantzu; Artázcoz, Rubén; Imbert, J. Bosco; Puertas, Fernando; Traver, M.C.; Castillo, Federico-José

doi:10.5424/fs/2016252-07317

Cited by 26 publications

(18 citation statements)

References 29 publications

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“…Site conditions (poor vs. fertile sites) are important for biomass productivity of mixtures compared to monocultures (Pretzsch, Schütze 2014). A negative effect of beech on the pine growth was observed on unthinned plots by Primicia et al (2016) in the western Spanish Pyrenees. Konôpka et al (2016) found that the morphology of beech foliage is more plastic than that of spruce, i.e.…”

Section: Discussionmentioning

confidence: 99%

Importance of the first thinning in young mixed Norway spruce and European beech stands

Novák¹,

Dušek²,

Slodičák³

et al. 2017

J. For. Sci.

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Novák J., Dušek D., Slodičák M., Kacálek D. (2017): Importance of the first thinning in young mixed Norway spruce and European beech stands. J. For. Sci., Experimental results from the first thinning in mixed stands are not broadly experienced by forestry practice. To extend the experience with the thinning of a mixed stand, we studied thinned and unthinned mixtures of Norway spruce with European beech on two study sites in the Czech Republic, which represented different conditions: Všeteč (age of 19-35 years) -originally beech dominated site at 440 m a.s.l. and Deštné (age of 17-33 years) -originally spruce with beech site at 990 m a.s.l. Spruce and beech were mixed individually or in small groups. As the for number of trees, mixtures were 35-54% beech and 46-65% spruce at a lower altitude and 7-30% beech and 70-93% spruce at a higher altitude. In the period 1997-2013, we observed annually: mortality, diameter at breast height of all trees and height of trees (minimum 30 individuals) that represented diameter distribution. Results showed that the growth and development of young mixed spruce/beech stands were positively influenced by the first pre-commercial thinning on both locations. The most pronounced effect of thinning consisted in a decreased amount of basal area of dead trees. On control plots, salvage cut accounted for 34 and 46%, while on thinned plots it reached only 7-8% (thinned from above) and 18% (thinned from below) of basal area periodic increment during the 16-year study period. In contrast, diameter distribution was still relatively wide (i.e. an important amount of thin trees was left) at the end of observations on all plots of both study sites. Thinned stands also showed the better static stability (expressed as an h/d ratio) of dominant spruces compared to unthinned stands on both locations. Additionally, thinning supported the spruce share at a lower altitude and the beech share at a higher altitude.

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Section: Discussionmentioning

confidence: 99%

Importance of the first thinning in young mixed Norway spruce and European beech stands

Novák¹,

Dušek²,

Slodičák³

et al. 2017

J. For. Sci.

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“…Las densidades de regeneración de las plántulas en masas monoespecíficas se basaron en las tablas regionales de crecimiento y producción para estas especies (Madrigal et al 1992;Puertas 2003). González de Andrés et al (2017a) identificaron los valores iniciales de regeneración que mejor emulaban la composición de los rodales observada en inventarios realizados en 1999 y 2013-14 (Blanco 2004;Primicia et al 2016). Sobre estos valores (denominado regeneración típica), se realizó un análisis de sensibilidad, realizando una reducción y un aumento de la densidad inicial a diferentes intensidades: reducción moderada (-20%), reducción severa (-35%), aumento moderado (+20%) y aumento severo (+35%), generando un rango de densidades iniciales de 6175 a 12 825 árboles ha -1 , valores típicos para estas masas (Schwendtner 2012).…”

Section: Escenarios De Regeneraciónunclassified

Simulating the interaction among initial stand density and water and nutrient flows to understand the development of Pinus sylvestris and Fagus sylvatica mixedwoods under climate change

Candel-Pérez

Blanco

Andrés

et al. 2017

ECOS

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“…As a matter of fact, in Scots pine heavy thinnings do not generate a surplus of growth compared to moderate ones, on the contrary [129]. Pine plantations from recovered sites can be managed, with moderate intensities, also after the age at which growth enters declining, depending on the state of tree health.…”

Section: Trees Response To Managementmentioning

confidence: 99%

Radial Growth Behavior of Pines on Romanian Degraded Lands

Silvestru-Grigore¹,

Dinulică

Spârchez

et al. 2018

Forests

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More than a third of Romania's surface has low-productive soils, at the same time exposed to risks of climatic phenomena and generating high economic loss. Afforestation with pine has been the most common solution for the recovery of sheet erosion. Many of the pines grown on such land have run down. This paper presents the results of the first dendroecological investigation of degraded lands in Romania, 80 years after the first ecological reconstruction. In this way, the effects of reconstruction were assessed, supporting the adoption of future solutions for the improvement and efficiency of recovered ecosystems. Reconstructed radial growth was set against rainfall, air temperature, and management history. A total of 330 black pine and Scots pine trees (Pinus sylvestris L. and Pinus nigra Arn.) of different ages and social positions from 11 stands of different densities were cored for retrospective tree-ring analysis. Scots pine has made better use of these sites, with a better growth rate than black pine especially in plantations with lower survival and on dominant trees. The dynamics of radial growth distinguish the two pine species, with Scots pine showing an accentuated juvenile growth spurt and bigger growth range. The growth decline is predominantly a maturation effect that begins when the tree is around 40 years old and seems to be irreversible. After this age, weak or moderated removal is not enough to revive growth. The contribution of climate (air temperature and rainfall) to the last radial increments in decline is 3-57% and is higher than in the previous decades. On moderately degraded land by farming and grazing, the mixture of Scots pine and black pine, rather than monocultures, proved to be a sustainable solution. Dendrochronological surveying of restored ecosystems allows development of management strategies, which becomes critically important in the circumstances of climate warming.

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Influence of thinning intensity and canopy type on Scots pine stand and growth dynamics in a mixed managed forest

Cited by 26 publications

References 29 publications

Importance of the first thinning in young mixed Norway spruce and European beech stands

Importance of the first thinning in young mixed Norway spruce and European beech stands

Simulating the interaction among initial stand density and water and nutrient flows to understand the development of Pinus sylvestris and Fagus sylvatica mixedwoods under climate change

Radial Growth Behavior of Pines on Romanian Degraded Lands

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