Assessing Deadwood Using Harmonized National Forest Inventory Data

Rondeux, Jacques; Bertini, Roberta; Bastrup-Birk, Annemarie; Corona, Piermaria; Latte, Nicolas; McRoberts, Ronald E.; Ståhl, Göran; Winter, Susanne; Chirici, Gherardo

doi:10.5849/forsci.10-057

Cited by 51 publications

(40 citation statements)

References 18 publications

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“…Findings similar to ours have been reported by and Woodall and Liknes (2008). Rondeux et al (2012) assessed the impact of using different threshold diameters in the range from 10 to 20 cm and found that a 20 cm threshold decreased the volumes of dead wood with 30%. In this case, most of the data emanated from temperate forests.…”

Section: Discussionsupporting

confidence: 77%

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The choice of definition has a large effect on reported quantities of dead wood in boreal forest

Söderberg

Wulff

Ståhl

2014

Scandinavian Journal of Forest Research

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A survey was conducted to assess the impact of the choice of definition on reported quantities of dead wood in Swedish forests, which to more than 90% are located in the boreal zone. The data collection was made on a subsample of the permanent plots of the Swedish national forest inventory. The objects included were standing dead trees and snags down to 5 cm diameter at breast height, dead lying stems and branches down to a threshold diameter of 1 cm, and stumps down to a threshold diameter of 5 cm at normal stump height. Standing trees, snags, and stumps were inventoried on 10 m radius circular plots while the downed objects were inventoried using both circular plots and line intersect sampling; thin objects (diameter 1-5 cm) were assessed only through line intersect sampling. The results showed that the estimated volume of dead wood was as high as 25 m 3 ha -1 when all components were included. With the standard Swedish definition, the corresponding estimate was only 10.9 m 3 ha -1 , or 43 % of the total value. Since definitions of dead wood vary greatly between countries we conclude that great caution must be exercised when figures are compared in connection with international reporting. For example, adding stumps to the Swedish definition would increase the amounts of dead wood from 10.9 m 3 ha -1 to 15.7 m 3 ha -1 , i.e. with 44 %.

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Section: Discussionsupporting

confidence: 77%

“…Increasing the threshold diameter to 20 cm, corresponding to the national definition used in some central European countries (e.g. Rondeux et al 2012), our estimate was 7.3 m 3 ha -1 , i.e.…”

Section: Discussionmentioning

confidence: 99%

The choice of definition has a large effect on reported quantities of dead wood in boreal forest

Söderberg

Wulff

Ståhl

2014

Scandinavian Journal of Forest Research

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“…Thomas scale (Thomas 1979) (Table 2) was used to assess the degree of decomposition of standing dead biomass and a 4-point harmonized scale (Rondeux et al 2012) (Table 3) for lying biomass and stumps.…”

Section: Stumps -Panjevimentioning

confidence: 99%

Zalihe biomase mrtvog drva u šumskim ekosustavima bukve (Fagus sylvatica L.) na području zapadnog Balkana, Bugarska

Dimitrova

2018

Šumar. list (Online)

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SUMMARYThe dead trees play an important role in the functioning and productivity of the forests' ecosystems through influence over biological diversity, the accumulation of carbon dioxide, nutrient turnover and energy flux, hydrological processes, protection of the soils and the regeneration of tree species. The dead wood assures important habitats also. In historical aspect, for many years the dead wood was removed from the stands as a measure for protection against insects and fungi, which are perceived as a threat for the healthy forest status. This leads to reduction of the quantity of the dead wood in the forest ecosystems to critical low levels, which are not enough for maintaining the vital populations of many forest species. During the past years, the new settings in the national legislation, especially these related to the Natura 2000 development and management, require the quantity information about this component for the forest habitats assessment. In this regard, the objective of this study was to obtain quantitative data on stocks of dead forest biomass in beech communities in West Balkan Range. The amount of standing dead wood was calculated with height rates tables; method of line intersect sampling was used for determination of the lying dead wood stocks. Thomas scale was used to assess the degree of decomposition of standing dead biomass (Table 2) and a 4-point harmonized scale for lying biomass and stumps (Table 3). It was found total dead wood biomass stocks variation in the range of 14.48 -41.8 m 3 .ha -1 as a result of studies conducted in beech stands (Table 5). The standing dead wood biomass was 6.7-17.5 m 3 .ha . The observed standing dead trees were mainly from the fourth level of decomposition. The prevailing rate of decomposition for lying biomass was B and for stumps were C and D (Table 6). It can be generalized from the results of current study that the percentage of the total amount of dead wood to the total forest yield was insufficient from a conservation perspective.

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“…Hence, determining the forest floor (litter) and mineral soil organic carbon stocks as well as the influence of forest management on soil carbon stocks forms a critical part of decision-making processes (Jandl et al, 2007;Tonon et al, 2011). Deadwood is recognized as an essential component in forest stands, particularly with regard to biodiversity conservation and ecosystem functioning, and it represents an important forest carbon pool (Rondeux et al, 2012). Forest inventories provide data to estimate this carbon pool (e.g., Harmon & Marks, 2002) and although deadwood estimates for Mediterranean forests are scarce, the importance of deadwood in carbon storage and the influence of forest management have gained prominence in recent years (e.g., Lombardi et al, 2008;Herrero et al, 2010;Paletto et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

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Aim of study: TTo review and acknowledge the value of carbon sequestration by forest management in the Mediterranean area. Material and methods:We review the main effects of forest management by comparing the effects of silvicultural systems (even-aged vs. uneven-aged stands, coppice systems, agroforestry systems), silvicultural options (thinning, rotation period, species composition), afforestation, harvesting, fire impact or effects of shrub layer on carbon sequestration in the Mediterranean area.Main results: We illustrate as forest management can clearly improve forest carbon sequestration amounts. We conclude that forest management is an effective way to maintain and enhance high carbon sequestration rates in order to cope with climate change and provision of ecosystem services. We also think that although much effort has been put into this topic research, there are still certain gaps that must be dealt with to increase our scientific knowledge and in turn transfer this knowledge to forest practitioners in order to achieve sustainable management aimed at mitigating climate change.Research highlights: It is important to underline the importance of forests in the carbon cycle as this role can be enhanced by forest managers through sustainable forest management. The effects of different management options or disturbances can be critical as regards mitigating climate change. Understanding the effects of forest management is even more important in the Mediterranean area, given that the current high climatic variability together with historical human exploitation and disturbance events make this area more vulnerable to the effects of climate change.Additional keywords: global carbon cycle; forest sink; forest mitigation strategies; carbon sequestration potential; climate change mitigation; Mediterranean forests.

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Assessing Deadwood Using Harmonized National Forest Inventory Data

Cited by 51 publications

References 18 publications

The choice of definition has a large effect on reported quantities of dead wood in boreal forest

The choice of definition has a large effect on reported quantities of dead wood in boreal forest

Zalihe biomase mrtvog drva u šumskim ekosustavima bukve (Fagus sylvatica L.) na području zapadnog Balkana, Bugarska

Forest management and carbon sequestration in the Mediterranean region: A review

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