A new method for the identification of old-growth trees in National Forest Inventories: application to Pinus halepensis Mill. stands in Spain

Alberdi, Iciar; Cañellas, Isabel; Hernández, Laura; Condés, Sonia

doi:10.1007/s13595-012-0261-9

Cited by 11 publications

(6 citation statements)

References 10 publications

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“…For some functions covered by the concept of CSF, it is not always possible to provide direct indicators at stand level as it would require additional measurements, analysis, or even destructive sampling, which could reduce their practicality and utility. For instance, for assessing biodiversity, the number of large trees or microhabitats is often used as surrogate of flora and fauna diversity (Winter and Möller 2008;Alberdi et al 2013).…”

Section: Indicator Selectionmentioning

confidence: 99%

Assessment of Indicators for Climate Smart Management in Mountain Forests

Rı́o

Pretzsch

Bončina

et al. 2021

Climate-Smart Forestry in Mountain Regions

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This chapter addresses the concepts and methods to assess quantitative indicators of Climate-Smart Forestry (CSF) at stand and management unit levels. First, the basic concepts for developing a framework for assessing CSF were reviewed. The suitable properties of indicators and methods for normalization, weighting, and aggregation were summarized. The proposed conceptual approach considers the CSF assessment as an adaptive learning process, which integrates scientific knowledge and participatory approaches. Then, climate smart indicators were applied on long-term experimental plots to assess CSF of spruce-fir-beech mixed mountain forest. Redundancy and trade-offs between indicators, as well as their sensitivity to management regimes, were analyzed with the aim of improving the practicability of indicators. At the management unit level, the roles of indicators in the different phases of forest management planning were reviewed. A set of 56 indicators were used to assess their importance for management planning in four European countries. The results indicated that the most relevant indicators differed from the set of Pan-European indicators of sustainable forest management. Finally, we discussed results obtained and future challenges, including the following: (i) how to strengthen indicator selections and CSF assessment at stand level, (ii) the potential integration of CSF indicators into silvicultural guidelines, and (iii) the main challenges for integrating indicators into climate-smart forest planning.

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Section: Indicator Selectionmentioning

confidence: 99%

Assessment of Indicators for Climate Smart Management in Mountain Forests

Rı́o

Pretzsch

Bončina

et al. 2021

Climate-Smart Forestry in Mountain Regions

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“…However, a more advanced and complete description of the vertical structure requires the spatial positions of trees to be specified along with their size and species. Tree height is a particularly important size variable that can be used to describe the vertical structure of the stand (Alberdi et al 2013). If all tree heights are known or can be reliably estimated for each species, frequency histograms can show the distribution of stem density, basal area, etc., for each tree species separately within defined height classes.…”

Section: Analysis Of Dendrometric Parametersmentioning

confidence: 99%

Structural variability of Aleppo pine stands in two forests in northeastern Algeria

et al. 2020

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Abstract. Rached-Kanouni M, Hani I, Bousba R, Beldjazia A, Khammar H. 2020. Structural variability of Aleppo pine stands in two forests in northeastern Algeria. Biodiversitas 21: 2848-2853. The layout of the stand can be described as the width of the trees, their reciprocal locations, diametric distinction and height. The goal of this study is to recognize changes in the Pinus halepensis spatial and demographic systems in two Beni Oudjana and Chettaba Forests, located in northeast Algeria. An inventory of trees in these forest formations with P. halepensis dominance was carried out based on dendrometric parameters such as total height, tree diameter at dbh ≥ 5 cm, basal area, total volume, etc., as well as the number of trees in the forest. Tree diameter and height measurements were made on 12 rectangular plots (20 m × 20 m), located in both forests. The results obtained show that the mean stand density, mean diameter, basal area and total volume are higher in Chettaba Forest, the values attributed to these parameters are respectively (422 trees/ha, 27.07 cm, 26, 86 m2, 251.63 m3); while the total height and regeneration rate show significantly higher values in Beni Oudjana Forest (18.97 m, 607 individuals/ha). The structure in diameter and height of the species is bell-shaped to asymmetrically positive with a predominance of small diameter individuals in the Chettaba forest. On the other hand, in the Beni Oudjana Forest, the structure is ‘L’ shaped, showing a predominance of very small diameter individuals. These results indicate that the low regeneration rate of P. halepensis in the Chettaba Forest is due to anthropogenic pressures that favor the degradation of this forest.

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“…• Stand age: in each plot, tree age and diameter growth increment of the measured dominant tree are determined by means of core extraction at a height of 0.5 m above ground level. Diameter-age models of dominant tree species can be derived using this information and old growth trees can be identified (Alberdi et al, 2013).…”

Section: Multifunctional Inventorymentioning

confidence: 99%

The Spanish National Forest Inventory: history, development, challenges and perspectives

2017

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É importante ter uma base de dados florestal estatisticamente robusta, que possa ser atualizada e possa fornecer informações em longo prazo. Os inventários florestais nacionais (IFN) fornecem uma das melhores fontes de informação de larga escala e, portanto, são a base para políticas florestais. O escopo dos IFNs, que são a principal fonte de dados para avaliações nacionais e de grandes áreas, foi ampliado para incluir novas variáveis, visando atender a crescentes requisitos de informação. Este artigo descreve a história, metodologia e as orientações do IFN espanhol e os requisitos internacionais. Os objetivos atuais são determinados através da análise das perspectivas futuras e possível orientação de avaliações futuras. Estes objetivos incluem a harmonização do IFN, fonte aberta de dados e ampliação do número de variáveis de campo monitoradas (inventário multiobjetivo), a fim de efetivamente cumprir aos requisitos de informação.

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A new method for the identification of old-growth trees in National Forest Inventories: application to Pinus halepensis Mill. stands in Spain

Cited by 11 publications

References 10 publications

Assessment of Indicators for Climate Smart Management in Mountain Forests

Assessment of Indicators for Climate Smart Management in Mountain Forests

Structural variability of Aleppo pine stands in two forests in northeastern Algeria

The Spanish National Forest Inventory: history, development, challenges and perspectives

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