Nature-based forest management—Where are we going?

Larsen, Jørgen Falck; Nielsen, Anders Busse

doi:10.1016/j.foreco.2006.09.087

Cited by 77 publications

(19 citation statements)

References 19 publications

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“…The production potential of forests in Europe and worldwide is limited [10,11]. New ecologically friendly approaches toward forest management, associated with the global climate change and negative impacts on forests will cause a change in the volume and quality of forest stands [12][13][14]. Moreover, green economics highlights more and more the non-production forest functions and the advantages of wood products from the point of view of carbon footprint [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Innovation Approach for Wood Quality Evaluation in Green Business

2018

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The purpose of this paper is to propose a method for the optimization of raw wood for the timber construction industry that would meet the green business and sustainable development requirements within the concept of corporate social responsibility. The methodology conceptually applied the ImageJ software in the process of spruce-timber valuation using 100 log specimens according to the standard STN 480055. The impact of timber structure on the environment compared to silicate buildings was assessed via selected environmental criteria of life-cycle assessment. The methodology was applied according to the standards within the monitored phase of the life-cycle cradle to a gate based on the available environmental products declaration. The overall difference in the assortment value when using the ImageJ software as the evaluation method reached €426.68 (+6.7%). The individual construction elements creating the composition of perimeter walls of the evaluated alternatives showed a positive impact of the following indicators: global warning potential, primary energy input for production, ozone depletion potential, and photochemical ozone creation potential of the reference timber structure. The findings presented in this study clearly confirm the ecological approach toward building a wood-based structure while meeting the requirements of sustainable development.

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Section: Introductionmentioning

confidence: 99%

Sustainable Innovation Approach for Wood Quality Evaluation in Green Business

2018

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“…Nevertheless, experiences from forestry, including nature-based forestry, and conservation management indicate that classification of woody species composition according to the relationship of key species to decisive environmental characteristics can inform the development of long-term management goals and approaches (Knight et al 2006; Larsen and Nielsen 2007; Cáceres and Legendre 2009). However, studies on plant regrowth after initial clearing of forest edges and its classification are rare, and tend to focus on single crop trees in strip shelterwood systems as a forestry practice in central Europe, where stands are regenerated successively in time and space (e.g., Wagner 1912; Henriksen 1988).…”

Section: Introductionmentioning

confidence: 99%

Forest Edge Regrowth Typologies in Southern Sweden—Relationship to Environmental Characteristics and Implications for Management

Wiström

Nielsen

2017

Environmental Management

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After two major storms, the Swedish Transport Administration was granted permission in 2008 to expand the railroad corridor from 10 to 20 m from the rail banks, and to clear the forest edges in the expanded area. In order to evaluate the possibilities for managers to promote and control the species composition of the woody regrowth so that a forest edge with a graded profile develops over time, this study mapped the woody regrowth and environmental variables at 78 random sites along the 610-km railroad between Stockholm and Malmö four growing seasons after the clearing was implemented. Through different clustering approaches, dominant tree species to be controlled and future building block species for management were identified. Using multivariate regression trees, the most decisive environmental variables were identified and used to develop a regrowth typology and to calculate species indicator values. Five regrowth types and ten indicator species were identified along the environmental gradients of soil moisture, soil fertility, and altitude. Six tree species dominated the regrowth across the regrowth types, but clustering showed that if these were controlled by selective thinning, lower tree and shrub species were generally present so they could form the “building blocks” for development of a graded edge. We concluded that selective thinning targeted at controlling a few dominant tree species, here named Functional Species Control, is a simple and easily implemented management concept to promote a wide range of suitable species, because it does not require field staff with specialist taxonomic knowledge.

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“…Starting from the square matrix containing distances between pairs of plots, an initial partition was generated by cutting the dendrogram produced by Ward's hierarchical clustering (Ward 1963). Then, we used the clustering algorithm Partitioning Around Medoids (Kaufman and Rousseuw 1990) to refine this initial partition. A cluster medoid is defined as the object (i.e., a plot) having the minimal sum of distances to all the other objects in the cluster.…”

Section: Level 2-forest Subtypesmentioning

confidence: 99%

“…A cluster medoid is defined as the object (i.e., a plot) having the minimal sum of distances to all the other objects in the cluster. We evaluated the final partitions corresponding to different numbers of clusters using Silhouette analysis (Kaufman and Rousseuw 1990). For each forest type, we selected the partition with the maximum number of clusters (subtypes) as long as the average cluster Silhouette was larger than 0.20 and all clusters had at least 10 plots assigned to them.…”

Section: Level 2-forest Subtypesmentioning

confidence: 99%

A general method for the classification of forest stands using species composition and vertical and horizontal structure

Cáceres

Martín-Alcón²,

Coll

2019

Annals of Forest Science

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& Key message We present a novel approach to define pure-and mixed-forest typologies from the comparison of pairs of forest plots in terms of species identity, diameter, and height of their trees. & Context Forest typologies are useful for many purposes, including forest mapping, assessing habitat quality, studying forest dynamics, or defining sustainable management strategies. Quantitative typologies meant for forestry applications normally focus on horizontal and vertical structure of forest plots as main classification criteria, with species composition often playing a secondary role. The selection of relevant variables is often idiosyncratic and influenced by a priori expectations of the forest types to be distinguished. & Aims We present a general framework to define forest typologies where the dissimilarity between forest stands is assessed using coefficients that integrate the information of species composition with the univariate distribution of tree diameters or heights or the bivariate distribution of tree diameters and heights. & Methods We illustrate our proposal with the classification of forest inventory plots in Catalonia (NE Spain), comparing the results obtained using the bivariate distribution of diameters and heights to those obtained using either tree heights or tree diameters only. & Results The number of subtypes obtained using the tree diameter distribution for the calculation of dissimilarity was often the same as those obtained from the tree height distribution or to those using the bivariate distribution. However, classifications obtained using the three approaches were often different in terms of forest plot membership. & Conclusion The proposed classification framework is particularly suited to define forest typologies from forest inventory data and allows taking advantage of the bivariate distribution of diameters and heights if both variables are measured. It can provide support to the development of typologies in situations where fine-scale variability of topographic, climatic, and legacy management factors leads to fine-scale variation in forest structure and composition, including uneven-aged and mixed stands.

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Nature-based forest management—Where are we going?

Cited by 77 publications

References 19 publications

Sustainable Innovation Approach for Wood Quality Evaluation in Green Business

Sustainable Innovation Approach for Wood Quality Evaluation in Green Business

Forest Edge Regrowth Typologies in Southern Sweden—Relationship to Environmental Characteristics and Implications for Management

A general method for the classification of forest stands using species composition and vertical and horizontal structure

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