Modelling dead wood in Norway spruce stands subject to different management regimes

Ranius, Thomas; Kindvall, Oskar; Kruys, Nicholas; Jonsson, Bengt Gunnar

doi:10.1016/s0378-1127(03)00027-6

Cited by 102 publications

(101 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finally, harvesting can produce drastic changes in CWD quantity and quality. Tree removal decreases the CWD input and harvesting can affect wood pools indirectly through the fragmentation of decaying ground wood caused by machinery (Ranius et al 2003). In NW Spain, thinning could have a significant effect on CWD amounts in young stands, where higher log and stump volumes were found in thinned stands, and where logging waste such as crown debris or pruning residues is commonly left on the ground.…”

Section: Discussionmentioning

confidence: 99%

Amount and distribution of coarse woody debris in pine ecosystems of north-western Spain, Russia and the United States

Herrero¹,

Krankina²,

Monleón³

et al. 2014

iForest

View full text Add to dashboard Cite

© iForest -Biogeosciences and Forestry IntroductionCoarse woody debris (CWD) is one of the most important functional and structural components of forest ecosystems (Harmon et al. 1986, McComn & Lindenmayer 1999. CWD affects nutrient cycling, carbon storage and hydrological processes. It also serves as an essential substrate for a multitude of species, including numerous rare and endangered species (von Oheimb et al. 2007).Numerous studies have examined the role of CWD in maintaining biodiversity (Esseen et al. 1997, Angelstam 1998, estimating the decomposition rates of many important tree species (Yatskov et al. 2003), evaluating the effect of CWD in carbon and nutrient cycles (Krankina et al. 1999, Hyvonenn et al. 2000, Merganicôvá & Merganic 2010 and analyzing the quantity, structure and dynamics of CWD in managed and unmanaged forests (Green & Peterken 1997, Linder et al. 1997, Siitonen et al. 2000, Lombardi et al. 2008. In unmanaged forests, the amount of CWD is the result of tree mortality and dead wood decay rates, both of which are affected by climate, site productivity, tree species composition, disturbance regime, previous forest stand characteristics and the successional stage of the forest (Harmon et al. 1986, Spies et al. 1988. In managed forests, CWD quantities are typically kept very low, to avoid pest problems and fire hazards and to maximize the commercial value of the harvest. Where economics and accessibility allow, trees affected by insects, diseases, and fire are usually removed immediately, before they die or deteriorate (DeBell et al. 1997, Green & Peterken 1997. Plantation forests are typically managed on short rotations and are generally subject to intensive harvesting methods, resulting in structurally homogenous stands without significant amounts of CWD (Harmon et al. 1986, deMaynadier & Hunter 1995. However, silvicultural activities such as thinning, pruning and harvesting can create woody debris (Carlyle 1995). The increasing importance of biodiversity and carbon storage favors the maintenance and promotion of CWD in managed forests. Leaving some live and dead trees during logging operations, or even killing trees to create CWD, are some of the operational means for meeting biodiversity needs in managed forests (Esseen et al. 1997).The amount and distribution of CWD can be a criterion for assessing and determining baseline silvicultural practices. This type of data is available for different types of forests, but the geographic extent and focus of most studies is limited to one or a few specific stands. There is very little information on continental or global CWD quantities and distribution patterns or on how management affects these patterns. Comparison of different forest ecosystems makes it possible to examine the effects of site productivity and stand structure on CWD amounts and decomposition rates. It also improves understanding of how different management practices affect CWD as a resource, which is vital to formulating guidelines and strategies for increasing carbon storage ...

show abstract

Section: Discussionmentioning

confidence: 99%

Amount and distribution of coarse woody debris in pine ecosystems of north-western Spain, Russia and the United States

Herrero¹,

Krankina²,

Monleón³

et al. 2014

iForest

View full text Add to dashboard Cite

show abstract

“…The relatively short period for which tree retention has been practised gives few opportunities to show empirically the temporal dynamics at stand and landscape levels. Most of the current studies on these aspects rely on simulations where several simplifying assumptions are necessary (Ranius et al, 2003;Ranius & Kindvall, 2004;Tikkanen et al, 2007). A step forward would be to conduct true landscape studies, i.e.…”

Section: Discussionmentioning

confidence: 99%

“…The most important measures to achieve this included setting aside of areas, retention of living trees, limiting destruction of coarse woody debris and not removing naturally dying trees. Another study based on simulations showed that retention trees are particularly important to avoid temporal discontinuities in coarse woody debris availability at the stand level (Ranius et al, 2003). In a study of high stumps in boreal forest, Schroeder et al (2006) found that high stumps yielded only 0.13% of coarse woody debris volume and bark area in the landscape.…”

Section: Substrate Amounts and Dynamicsmentioning

confidence: 99%

Tree retention as a conservation measure in clear-cut forests of northern Europe: a review of ecological consequences

Gustafsson

Kouki

Sverdrup‐Thygeson

2010

Scandinavian Journal of Forest Research

206

123

View full text Add to dashboard Cite

Since the mid-1990s, it has been common practice to leave trees for biodiversity purposes when clear-cutting in Finland, Norway and Sweden, and regulations for such tree retention are today included in national legislation and certification standards. Peer-reviewed research publications on tree retention from studies performed in the three countries were analyzed and about 50 relevant biodiversity studies were found, with the first published in 1994. Most studies were directed towards beetles and dead wood, especially high stumps. General conclusions were that retention trees (1) provide some of the substrate types required by early-successional species, (2) alleviate the most serious consequences of clear-cutting on biota, and (3) cannot maintain characteristics of intact mature forests. Larger volumes and more trees tend to maintain diversity better. There is a particular lack of studies on dispersal, landscape effects and long-term dynamics. There is a need to study further the relationship between the biota and the amount of trees, as well as their spatial arrangement. Retention trees should preferably be evaluated in relation to other components in multiscaled conservation, including woodland key habitats and larger protected areas.

show abstract

“…These variables (Number of trees/ha (N), Basal area (BA), Site index (SI), etc.) influence the amount of CWD because only stems >10 cm in diameter are generated during the intermediate and later parts of the rotation period in managed forest (Ranius et al, 2003). In this sense, a limitation of this study was the strong dependence on available studied young Pinus spp.…”

Section: Discussionmentioning

confidence: 92%

“…plantation CWD fitted model predicted CWD presence by using altitude, minimum temperature, soil texture and the presence of thinning operations over the last 15 y. Thinning carried out in our study area increased CWD presence in the stand. More direct radiation, non-extraction of logs lacking commercial value and possible damage during the thinning operations could increase the likelihood of snag trees, pieces of broken snag trees or snags falling over with time that remained on the ground (logs) (Ranius et al, 2003). The effects of management on CWD dynamics have previously been studied (Green and Peterken, 1997;Siitonen et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Modelling coarse woody debris in Pinus spp. plantations. A case study in Northern Spain

Herrero¹,

Pando²,

Bravo³

2010

Ann. For. Sci.

View full text Add to dashboard Cite

Abstract• Coarse woody debris (CWD) plays a substantial role in several ecological processes in forest ecosystems, providing a habitat for many organisms and participating in biogeochemical fluxes. Understanding CWD dynamics is important to classify adequate density, size and amount into different decay classes and to make decisions that include biodiversity and the carbon budget in practical forestry.• A two-step model has been developed to quantify CWD in Pinus spp. plantations in Northern Spain. The two-step approach was composed of a logistic model to predict the probability of CWD occurrence and linear models to quantify the two components considered, basal area of snags and volume of logs.• Site conditions, and climatic and stand variables were included in the models as independent variables. Good performance of the two-step model (R 2 snag = 39.9%, R 2 log = 62.8%) was observed.• Modelling CWD is a useful tool for simulating future scenarios in the current context of climate change. Models inform stakeholders properly about defining the best silvicultural options for the distribution of CWD under sustainable forest management.

show abstract

Modelling dead wood in Norway spruce stands subject to different management regimes

Cited by 102 publications

References 22 publications

Amount and distribution of coarse woody debris in pine ecosystems of north-western Spain, Russia and the United States

Amount and distribution of coarse woody debris in pine ecosystems of north-western Spain, Russia and the United States

Tree retention as a conservation measure in clear-cut forests of northern Europe: a review of ecological consequences

Modelling coarse woody debris in Pinus spp. plantations. A case study in Northern Spain

Contact Info

Product

Resources

About