Effects of management on coarse woody debris volume and composition in boreal forests in northern Sweden

Gibb, Heloise; Ball, John P.; Johansson, Therese; Atlegrim, Ola; Hjältén, Joakim; Danell, Kjell

doi:10.1080/02827580510008392

Cited by 83 publications

(75 citation statements)

References 35 publications

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“…However, if we had measured the volume according to the criteria of national forest inventories, the values would have been dramatically lower (13.8 and 15.6 m 3 /ha, respectively) and roughly equal to those measured at clear-cuts in Sweden (Gibb et al 2005). Therefore, it appears that the results of dead wood measurements are strongly affected by the accuracy of the method, and that the volume of dead wood at clear-cuts (and at the following early successional stages) is much higher than previously thought.…”

Section: Discussionmentioning

confidence: 99%

“…FWD also forms the majority of the dead wood in general both on clear-cuts and in mature managed forests (Gibb et al 2005). In Swedish mature, managed coniferous forests, where all pieces of dead wood with a minimum diameter of 5 cm and a minimum length of 30 cm were measured, 63% of the pieces were FWD (Kruys et al 1999).…”

Section: Introductionmentioning

confidence: 99%

“…One of the greatest differences between managed and natural forests is the volume and composition of decaying wood (Siitonen 2001a, Gibb et al 2005, Jönsson and Jonsson 2007. The volume of coarse woody debris (CWD) in natural forests can be up to 25-30 times higher compared to that in managed forests.…”

Section: Introductionmentioning

confidence: 99%

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The volume and composition of dead wood on traditional and forest fuel harvested clear-cuts

Eräjää¹,

Halme²,

Kotiaho³

et al. 2010

Silva Fenn.

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Logging residue and cut stumps are increasingly used as a renewable energy source known as forest fuel. Forest fuel harvesting obviously reduces the volume of dead wood and is likely to alter the dead wood composition, but the magnitude of the change is not known. Such information is important for the evaluation of the effects of forest fuel harvesting on biodiversity because a large proportion of forest dwelling species are directly dependent on dead wood. We measured the volume and characteristics of all dead wood units with a minimum diameter of 2 cm and a minimum length of 20 cm on 10 forest-fuel harvested and 10 traditional (control) clear-cuts. The total volume of dead wood at forest fuel harvested and control clear-cuts was 26.0 and 42.3 m 3 /ha, respectively. The volumes were much greater than expected suggesting that the volume of dead wood on clear-cuts has been underestimated in previous studies. Forest fuel harvested clear-cuts had 42% less branches and 81% less cut stumps than control clear-cuts but there were no differences in the volume of logs and pieces of logs, snags or roots. The volume of fine woody debris was negatively affected by forest fuel harvesting. We conclude that fine woody debris and cut stumps form a considerable resource on clear-cuts that is reduced by forest fuel harvesting. These components of dead wood have potential to be of importance in managed forests and thus deserve more attention in future biodiversity studies.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The volume and composition of dead wood on traditional and forest fuel harvested clear-cuts

Eräjää¹,

Halme²,

Kotiaho³

et al. 2010

Silva Fenn.

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show abstract

“…The clearance of forests for agriculture and their recovery on abandoned lands resulted in patchy forest cover with patches of different quality, age, size and isolation embedded in a more or less intensively managed agricultural matrix. Ecologically, these forest patches often exhibit homogenized stand structure, either because they are intensively managed or originate from plantations or afforestation of former farmlands [13][14][15], or management can be neglected [16].…”

Section: Introductionmentioning

confidence: 99%

Ecosystem Services from Small Forest Patches in Agricultural Landscapes

Decocq¹,

Andrieu²,

Brunet³

et al. 2016

Curr Forestry Rep

108

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In Europe, like in many temperate lowlands worldwide, forest has a long history of fragmentation and land use change. In many places, forest landscapes consist of patches of different quality, age, size and isolation, embedded in a more or less intensively managed agricultural matrix. As potential biodiversity islets, small forest patches (SFP) may deliver several crucial ecosystem services to human society, but they receive little attention compared to large, relatively intact forest patches. Beyond their role as a biodiversity reservoir, SFP provide important in situ services such as timber and wild food (game, edible plants and mushrooms) production. At the landscape scale, SFP may enhance the crop production via physical (obstacle against wind and floods) and biological (sources of pollinators and natural enemies) regulation, but may, on the other hand, also be involved in the spread of infectious diseases. Depending on their geographic location, SFP can also greatly influence the water cycle and contribute to supply high-quality water to agriculture and people. Globally, SFP are important carbon sinks and are involved in nutrient cycles, thus play a role in climate change mitigation. Cultural services are more related to landscape values than to SFP per se, but the latter may contribute to the construction of community identity. We conclude that SFP, as local biodiversity hotspots in degraded landscapes, have the potential to deliver a wide range of ecosystem services and may even be crucial for the ecological intensification of agroecosystems. There is thus an urgent need to increase our knowledge about the relationships between biodiversity and ecosystem services delivered by these SFP in agricultural landscapes.

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“…attitudes are beginning to change and there is a growing awareness that commercial forestry should not preclude the conservation of saproxylic invertebrates (Grove 2002a;Cavalli and Mason 2003;Gibb et al 2005). Frequently, the profit made from selling timber does not cover the cost of harvesting and, in such circumstances, foresters are now more likely to leave timber in clear-cut areas for the benefit of the saproxylic fauna.…”

mentioning

confidence: 99%

Are current management recommendations for saproxylic invertebrates effective? A systematic review

et al. 2007

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Conservation management recommendations for saproxylic invertebrates advocate the continuous provision of the dead and decaying wood microhabitats that they require for survival. Accepted site-based management practices include leaving fallen dead and decaying wood in situ, providing supplementary coarse woody material (CWM), inducing decay in mature trees and strategic planting in order to maintain a balanced age structure of trees in both space and time. Here we examine the empirical evidence regarding the effectiveness of such interventions using rigorous systematic review methodology. Systematic searching yielded 27 studies containing pertinent information. The evidence presently available is insufficient to critically appraise the utility of any specific intervention for conserving saproxylic species, or assemblages, in the long-term. However, there are a range of studies, conducted over relatively short periods of time, which do describe changes in saproxylic fauna in response to management practices. In the absence of robust, high quality evidence, recommendations relating to the use of specific site-based conservation interventions should only be regarded as speculative. Nonetheless, general proposals for the maintenance of suitable microhabitats, such as the protection of veteran trees within the landscape, are based on sound ecological principles and should be encouraged even though experimentally controlled and replicated evidence is lacking. Further primary research and long-term monitoring are required to fill the gaps in our ecological knowledge that potentially weaken the case for the effectiveness of current 123Biodivers Conserv (2008) 17:209-234 DOI 10.1007 saproxylic invertebrate conservation action and would enable practitioners to make better informed decisions with regard to dead wood protection and provision.

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Effects of management on coarse woody debris volume and composition in boreal forests in northern Sweden

Cited by 83 publications

References 35 publications

The volume and composition of dead wood on traditional and forest fuel harvested clear-cuts

The volume and composition of dead wood on traditional and forest fuel harvested clear-cuts

Ecosystem Services from Small Forest Patches in Agricultural Landscapes

Are current management recommendations for saproxylic invertebrates effective? A systematic review

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