Down dead wood in a forest – still an obstacle to forest management or already an ecological issue?

2012 ◽  
Vol 85 (2) ◽  
pp. 97-121 ◽  
Author(s):  
Jacek Wolski
Keyword(s):  
Forest Management ◽  
Dead Wood ◽  
Down Dead Wood

Saproxylic insect assemblages in Canadian forests: diversity, ecology, and conservation

2008 ◽  
Vol 140 (4) ◽  
pp. 453-474 ◽  
Author(s):  
David W. Langor ◽  
H.E. James Hammond ◽  
John R. Spence ◽  
Joshua Jacobs ◽  
Tyler P. Cobb
Keyword(s):  
Forest Management ◽  
Boreal Forests ◽  
Dead Wood ◽  
Sustainable Forest Management ◽  
Forest Harvesting ◽  
Stand Age ◽  
Managed Forests ◽  
Saproxylic Insects ◽  
Associated Species ◽  
Experimental Burns

AbstractSaproxylic insect assemblages inhabiting dead wood in Canadian forests are highly diverse and variable but quite poorly understood. Adequate assessment of these assemblages poses significant challenges with respect to sampling, taxonomy, and analysis. Their assessment is nonetheless critical to attaining the broad goals of sustainable forest management because such species are disproportionately threatened elsewhere by the reductions in dead wood generally associated with commercial exploitation of northern forests. The composition of the saproxylic fauna is influenced by many factors, including tree species, degree of decay, stand age, and cause of tree death. Wildfire and forest harvesting have differential impacts on saproxylic insect assemblages and on their recovery in postdisturbance stands. Exploration of saproxylic insect responses to variable retention harvesting and experimental burns is contributing to the development of prescriptions for conserving saproxylic insects in boreal forests. Understanding of processes that determine diversity patterns and responses of saproxylic insects would benefit from increased attention to natural history. Such work should aim to provide a habitat-classification system for dead wood to better identify habitats (and associated species) at risk as a result of forest management. This tool could also be used to improve strategies to better maintain saproxylic organisms and their central nutrient-cycling functions in managed forests.

Dead wood and sustainable forest management

2012 ◽  
pp. 302-337 ◽  
Author(s):  
Bengt Gunnar Jonsson ◽  
Juha Siitonen ◽  
Jogeir N. Stokland ◽  
Juha Siitonen ◽  
Bengt Gunnar Jonsson
Keyword(s):  
Forest Management ◽  
Dead Wood ◽  
Sustainable Forest Management

scholarly journals Optimal Continuous Cover Forest Management with a Lower Bound Constraint on Dead Wood

2019 ◽  
Vol 66 (2) ◽  
pp. 202-209
Author(s):  
Janne Rämö ◽  
Aino Assmuth ◽  
Olli Tahvonen
Keyword(s):  
Steady State ◽  
Forest Management ◽  
Dead Wood ◽  
Stand Density ◽  
Minor Effect ◽  
Biodiversity Indicator ◽  
Wood Volume ◽  
The Dead ◽  
A Minor ◽  
Timber Harvests

Abstract We analyze economically optimal continuous cover forestry with dead wood as a biodiversity indicator. We study mixed-species stands consisting of Norway spruce (Picea abies [L.] Karst.), birch (Betula pendula Roth.), and other broadleaves (e.g., oak [Quercus sp.], maple [Acer sp.]). The analysis is based on an economic description of continuous cover forest management using an empirically estimated size-structured transition matrix model. We use size-specific decomposition rates for dead wood, with the lower limit on total dead wood volume varying between 0 and 40 m3 ha–1. The optimization problem is solved in its general dynamic form using gradient-based interior point methods. Increasing the dead wood volume requirement affects total stand density only slightly, but increases stand heterogeneity as other broadleaves are grown in higher numbers. In addition, increasing the dead wood requirement has only a minor effect on the total felled volume, but harvests shift from timber harvests to biodiversity fellings to maintain the required dead wood volume. In the optimal steady state with a high dead wood requirement, two harvesting cohorts emerge: one for timber harvests and the other for biodiversity fellings. Increasing the dead wood requirement decreases steady-state net timber income by up to 30 percent compared to the unconstrained solution.

Implementation of criteria for sustainable forest management

2000 ◽  
Vol 65 ◽  
Author(s):  
N. Lust ◽  
L. Nachtergale
Keyword(s):  
Forest Management ◽  
Dead Wood ◽  
Sustainable Forest Management ◽  
Large Area ◽  
Operational Level ◽  
Core Elements ◽  
Key Issues ◽  
Native Tree Species ◽  
Old Trees ◽  
Practical Level

Resolution  H1 of the Second Ministerial Conference on the Protection of Forests in  Europe    defined sustainable forest management. Resolution L2 of the third  conference in Lisbon    adopted the Pan-European operational level guidelines for sustainable  forest management.    These guidelines are designed for sub-national applications at a practical  level. They should be    applied in the context of, and in full respect to, national and/or regional  instruments and actions.    They are directly based on the resolutions H1 and H2 and they follow the  structure of the six    pan-European criteria that were identified as the core elements of  sustainable forest    management.    The paper implements the six criteria by proposing and developing for each  criteria a number of    key issues that should be kept in mind for the realization of sustainable  forestry at the field level.    Altogether, 39 items are presented, such as forest maintenance,  profitability, exploitation    techniques, enhancement of biodiversity, native tree species, dead wood and  old trees,    participation, etc.    The major problem remains the assessment of sustainable forest management.  There is a lack    of knowledge. Sustainable forest management requires that no big  shortcomings on a large    area occur for each of the criteria. Sustainable forest management is a  process of continuous    improvement.

The effects of forest management on wood-inhabiting fungi occupying dead wood of different diameter fractions

2014 ◽  
Vol 313 ◽  
pp. 283-291 ◽  
Author(s):  
Katja Juutilainen ◽  
Mikko Mönkkönen ◽  
Heikki Kotiranta ◽  
Panu Halme
Keyword(s):  
Forest Management ◽  
Dead Wood

scholarly journals Assessing the role of natural disturbance and forest management on dead wood dynamics in mixed-species stands of central Maine, USA

2016 ◽  
Vol 46 (9) ◽  
pp. 1092-1102 ◽  
Author(s):  
Joshua J. Puhlick ◽  
Aaron R. Weiskittel ◽  
Shawn Fraver ◽  
Matthew B. Russell ◽  
Laura S. Kenefic
Keyword(s):  
Forest Management ◽  
Dead Wood ◽  
Natural Disturbance ◽  
Site Quality ◽  
Stand Development ◽  
Wood Biomass ◽  
Clear Cut ◽  
Live Tree ◽  
Over Time

Dead wood pools are strongly influenced by natural disturbance events, stand development processes, and forest management activities. However, the relative importance of these influences can vary over time. In this study, we evaluate the role of these factors on dead wood biomass pools across several forest management alternatives after 60 years of treatment on the Penobscot Experimental Forest in central Maine, USA. After accounting for variation in site quality, we found significant differences in observed downed coarse woody material (CWM; ≥7.6 cm small-end diameter) and standing dead wood biomass among selection, shelterwood, and commercial clear-cut treatments. Overall, total dead wood biomass was positively correlated with live tree biomass and was negatively correlated with the average wood density of nonharvest mortality. We also developed an index of cumulative harvest severity, which can be used to evaluate forest attributes when multiple harvests have occurred within the same stand over time. Findings of this study highlight the dynamic roles of forest management, stand development, and site quality in influencing dead wood biomass pools at the stand level and underscore the potential for various outcomes from the same forest management treatment applied at different times in contrasting stands.

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