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Journal articles on the topic 'Picea abies stumps'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Skrzecz, Iwona, and Maria Bulka. "Insect assemblages in Norway spruce [Picea abies (L.) Karst.] stumps in the Eastern Sudetes." Folia Forestalia Polonica, Series A - Forestry 52(2) (July 1, 2010): 98–107. https://doi.org/10.5281/zenodo.30846.

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The aim of the study was to determine the species composition of insect assemblages colonising stumps of Picea abies (L.) Karst. in mountain conditions. Investigations were carried out in the Eastern Sudetes (south –western Poland) in forest stands situated at 600– 700 m above sea level. The observations were conducted on stumps left behind after felling 70– 90 years old Norway spruces. The analysed stumps were colonised by insects from 21 families of 3 orders: Coleoptera (approximately 95%), Diptera (5%) and Raphidioptera (0.2%). There were 12 Coleoptera families determined

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2

Skrzecz, Iwona, Maria Bulka, and Joanna Ukalska. "Effects of location of Norway spruce (Picea abies) stumps on their colonisation by insects in the mountains." Folia Forestalia Polonica 61, no. 1 (2019): 64–77. http://dx.doi.org/10.2478/ffp-2019-0007.

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Abstract Tree stumps provide habitat for insect assemblages, which are influenced by various factors. Among these factors, physical and chemical changes of the stumps, fungi developing in the dead wood and stump size are most often reported. However there is limited information about the abundance of insects in stumps that are located on mountains where there are different microclimatic conditions. The studies pointed at the determination whether the location of Picea abies stumps in mountains at different altitudes above sea level and on mountainsides with different sun exposure has an impact

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3

Bendz-Hellgren, Malin, and Jan Stenlid. "Effects of clear-cutting, thinning, and wood moisture content on the susceptibility of Norway spruce stumps to Heterobasidion annosum." Canadian Journal of Forest Research 28, no. 5 (1998): 759–65. http://dx.doi.org/10.1139/x98-043.

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The effects of clear-cutting and thinning as well as heartwood and sapwood moisture content on spore infection by Heterobasidion annosum (Fr.) Bref. were investigated in summer cuttings in southern and central Sweden. At five sites, 20-100 stumps in clear-cut, thinned, and precommercially thinned stands of Norway spruce (Picea abies (L.) Karst.) were created and left for natural spore infection. An additional 20 stumps per stump type and site were artificially inoculated with conidiospores of H. annosum. The probability of natural infection was 0.73 and 0.53 for stumps in thinned and clear-cut

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4

Kurvits, Vahur, Peeter Muiste, Allar Padari, and Veiko Uri. "Hariliku kuuse (Picea abies (L.) H. Karst.) kändude juurimise tootlikkus juurimisagregaadiga Pallari KH-160 neljal Eesti katsealal." Forestry Studies 79, no. 1 (2023): 37–50. http://dx.doi.org/10.2478/fsmu-2023-0011.

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Abstract The aim of this paper was to provide an overview of the productivity of the stump lifting device Pallari KH-160, the distribution of working time, and to assess the dependence of the time and productivity of lifting operations on stump diameter in four different sample areas. Viru and Orguse sample areas were located in the Hepatica site type, Elva sample area in the Oxalis site type, and Rõuge test area in the Myrtillus site type. Viru sample area had smaller stumps compared to the others and had more stumps affected by decay. The highest productivity in terms of dry mass or volume w

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5

Pellicciaro, Martina, Guglielmo Lione, Silvia Ongaro, and Paolo Gonthier. "Comparative Efficacy of State-of-the-Art and New Biological Stump Treatments in Forests Infested by the Native and the Alien Invasive Heterobasidion Species Present in Europe." Pathogens 10, no. 10 (2021): 1272. http://dx.doi.org/10.3390/pathogens10101272.

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The Heterobasidion annosum species complex includes major fungal pathogens of conifers worldwide. State-of-the-art preventative stump treatments with urea or with commercial formulations of the fungal biological control agent Phlebiopsis gigantea (i.e., Rotstop®) may become no longer available or are not approved for use in many areas of Europe infested by the three native Heterobasidion species and by the North American invasive H. irregulare, making the development of new treatments timely. The efficacy of Proradix® (based on Pseudomonas protegens strain DSMZ 13134), the cell-free filtrate (

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6

Kenigsvalde, Kristīne, Dina Nitiša, Dace Saulīte, et al. "Impact of Trichoderma sp. on the Development of Heterobasidion Annosum in Decayed Understory Picea Abies Stumps." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 71, no. 1-2 (2017): 52–56. http://dx.doi.org/10.1515/prolas-2017-0009.

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Abstract Heterobasidion annosum (Fr.) Bref. s.l. causes significant economic losses in conifer forests. Therefore, to reduce the spread of the infection surfaces of freshly cut conifer, stumps are commonly treated with biological control agents. Trichoderma sp. shows very strong antagonistic effect against H. annosum in vitro, but relatively few field studies have been conducted. Moreover, most of previous studies examined the impact of Trichoderma sp. on H. annosum in healthy conifer stumps. The aim of our work was to evaluate the effect of Trichoderma sp. against H. annosum in already decaye

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7

Brang, Peter, Jonathan Moran, Pasi Puttonen, and Alan Vyse. "Regeneration of Picea engelmannii and Abies lasiocarpa in high-elevation forests of south-central British Columbia depends on nurse logs." Forestry Chronicle 79, no. 2 (2003): 273–79. http://dx.doi.org/10.5558/tfc79273-2.

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We studied the regeneration niche of Picea engelmannii and Abies lasiocarpa in wet sub-zones of the Engelmann spruce-subalpine fir (ESSF) zone of southern British Columbia. We characterized the niche on transects from clearcuts into adjacent old-growth stands, in terms of aspect, elevation, micro-relief, light, seedbed, canopy cover, and competing vegetation. Fourteen transects were sampled at four watersheds. The sampling design ensured similar representation of small (130 cm), medium (31100 cm) and tall (101300 cm) saplings, and of both species. In total, 465 Picea and 623 Abies saplings

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8

Labelle, Eric, Joachim Heppelmann, and Herbert Borchert. "Application of Terrestrial Laser Scanner to Evaluate the Influence of Root Collar Geometry on Stump Height after Mechanized Forest Operations." Forests 9, no. 11 (2018): 709. http://dx.doi.org/10.3390/f9110709.

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The height of tree stumps following mechanized forest operations can be influenced by machine-, tree-, terrain-, and operator-related characteristics. High stumps may pose different economic and technical disadvantages. Aside from a reduction in product recovery (often associated with sawlog potential), leaving high stumps can complicate future entries if smaller equipment with low ground clearance is used, particularly in the case where new machine operating trails are required. The objective of this exploratory study was to examine if correlations existed between the height of tree stumps fo

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9

Oliva, Jonàs, Magnus Thor, and Jan Stenlid. "Long-term effects of mechanized stump treatment against Heterobasidion annosum root rot in Picea abies." Canadian Journal of Forest Research 40, no. 6 (2010): 1020–33. http://dx.doi.org/10.1139/x10-051.

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Airborne Heterobasidion annosum (Fr.) Bref. sensu lato infections can be controlled by winter thinning or by mechanically spreading urea or Phlebiopsis gigantea (Fr.) Jülich spores on stump surfaces during summer thinning operations. The long-term outcomes of these control methods when applied as part of the conventional forest operations are unclear. We studied the rot incidence and population structure of H. annosum in plots of Picea abies (L.) Karst. thinned in winter or thinned in summer with and without treatment of the stumps. Plots were distributed among 11 stands in Sweden representing

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10

Vollbrecht, By G., and J. Stenlid. "Transfer of the P-type of Heterobasidion annosum from old-growth stumps of Picea abies to Picea abies and Larix x eurolepis." Forest Pathology 29, no. 2 (1999): 153–59. http://dx.doi.org/10.1046/j.1439-0329.1999.00142.x.

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11

Schroeder, Leif Martin, Thomas Ranius, Barbara Ekbom, and Stig Larsson. "Recruitment of saproxylic beetles in high stumps created for maintaining biodiversity in a boreal forest landscape." Canadian Journal of Forest Research 36, no. 9 (2006): 2168–78. http://dx.doi.org/10.1139/x06-119.

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The active creation of coarse woody debris (CWD) has been suggested as a measure to preserve and restore biodiversity in managed forests. A common practice in Sweden is to create high stumps at final cutting. We evaluated the importance of high stumps for saproxylic (wood-dependent) beetles in a boreal forest landscape in central Sweden. The number of high stumps created on clearcuts was recorded and the beetle fauna under the bark of high stumps of Norway spruce (Picea abies (L.) Karst.) and Scots pine (Pinus sylvestris L.) was sampled. High stumps yielded only 0.13% of CWD volume and bark ar

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12

Gaitnieks, Tālis, Lauma Silbauma, Indriķis Muižnieks, et al. "Spread of Heterobasidion genotypes in Norway spruce stands on drained peat soil in Latvia." Canadian Journal of Forest Research 52, no. 4 (2022): 499–510. http://dx.doi.org/10.1139/cjfr-2021-0309.

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According to several earlier studies, the prevalence of Heterobasidion in peat soils is generally lower compared to mineral soils. However, in some Norway spruce (Picea abies (L.) Karst.) stands on drained peat soils in Latvia, serious damage caused by Heterobasidion root rot has been observed. To determine the spread of Heterobasidion spp. on peat soil, we analyzed the structure of Heterobasidion genets in 20 study plots established in disease centres in 11 spruce-dominated peatland forest stands. A total of 381 standing spruce trees and 244 spruce stumps were examined for Heterobasidion infe

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13

Hamberg, Leena, Markus Strandström, and Timo Saksa. "Cutlink Cleaning Head with a Spreading Feature for Biological Sprout Control." Croatian journal of forest engineering 43, no. 1 (2021): 155–67. http://dx.doi.org/10.5552/crojfe.2022.1251.

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The ability of deciduous trees to sprout efficiently after cutting is problematic in young forests where the target is to cultivate coniferous trees for industry. Since the use of chemicals has been restricted, new alternatives are needed. One potential and environmentally friendly option is biological sprout control that is based on the use of a white-rot fungus, Chondrostereum purpureum (Pers. Ex Fr.) Pouzar. This method has been efficient in earlier investigations when performed manually, but efficient, fully mechanized devices which are able to cut and treat stumps with a fungus are still

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14

Shorohova, Ekaterina, Ekaterina Kapitsa, and Ilkka Vanha-Majamaa. "Decomposition of stumps 10 years after partial and complete harvesting in a southern boreal forest in Finland." Canadian Journal of Forest Research 38, no. 9 (2008): 2414–21. http://dx.doi.org/10.1139/x08-083.

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We studied the decomposition of cut stumps of Norway spruce ( Picea abies (L.) Karst.), Scots pine ( Pinus sylvestris L.), and birches ( Betula pubescens Ehrh. and Betula pendula Roth.) 10 years after clear felling, low level retention felling, gap felling, and selection felling. Bulk density of wood, mass per surface area of bark, and mass of wood and bark for entire stumps were estimated. Using a single exponential model, annual decomposition rate constants (k) were calculated as 0.071, 0.052, and 0.041 ·year–1 for birch, spruce, and pine, respectively. The k values for wood decreased in the

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15

Kaarakka, Lilli, Janne Vaittinen, Mikael Marjanen, et al. "Stump harvesting in Picea abies stands: Soil surface disturbance and biomass distribution of the harvested stumps and roots." Forest Ecology and Management 425 (October 2018): 27–34. http://dx.doi.org/10.1016/j.foreco.2018.05.032.

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16

Vollbrecht, G., and B. Bilde Jørgensen. "Modelling the incidence of butt rot in plantations of Piceaabies in Denmark." Canadian Journal of Forest Research 25, no. 12 (1995): 1887–96. http://dx.doi.org/10.1139/x95-205.

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An empirical model is presented to forecast the incidence of butt rot at the stand level. In addition, the impact of different thinning regimes and stump treatment on the incidence of butt rot was evaluated. The model is based on data from 166 permanent forest yield research plots of pure even-aged Norway spruce (Picea abies (L.) Karst.) plantations in Denmark, within which the incidence of butt rot at stump height in thinned trees has been recorded after each thinning since 1947. In total, 79 000 stumps from 895 thinnings were studied. Regression analyses were carried out with the incidence o

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17

Wellendorf, H., and I. M. Thomsen. "Genetic Variation in Resistance Against Heterobasidion annosum (Fr.) Bref. in Picea abies (L.) Karst. Expressed After Inoculation of Neighboring Stumps." Silvae Genetica 57, no. 1-6 (2008): 312–24. http://dx.doi.org/10.1515/sg-2008-0047.

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Abstract Based on the well-established knowledge that important spread of H. annosum is performed through spore infection of stumps and subsequent spread of mycelium to neighboring trees at points of root contact, an inoculation experiment was established in three adjacent fully pedigreed 17-year old Norway spruce field trials. In June 1995, every third row was cut and stump-inoculated with conidia belonging to the two contrasting types, P and S. 5 years later the remaining trees were evaluated by clear-cutting and mapping of rot occurrence. 34% of the trees were attacked. For each host-tree,

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18

Klavina, Darta, Lauma Bruna, Astra Zaluma, et al. "Infection and Spread of Root Rot Caused by Heterobasidion parviporum in Picea abies Stands after Thinning: Case Studies on Former Pasture and Meadow Lands." Forests 12, no. 1 (2021): 70. http://dx.doi.org/10.3390/f12010070.

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Afforestation of former agricultural lands is a common practice in several countries. This is beneficial for avoiding diseases carry-over from previous forest generations and to expand forest areas. However, several biotic and abiotic risks have been reported in such stands, including a higher risk of Heterobasidion root rot after thinning. Therefore, this study investigates the spread of Heterobasidion root rot in three Picea abies (L.) Karst. plantations in Latvia established on former pasture and meadow lands and subjected to forest management practices. Initially, to determine average infe

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19

Klavina, Darta, Lauma Bruna, Astra Zaluma, et al. "Infection and Spread of Root Rot Caused by Heterobasidion parviporum in Picea abies Stands after Thinning: Case Studies on Former Pasture and Meadow Lands." Forests 12, no. 1 (2021): 70. http://dx.doi.org/10.3390/f12010070.

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Afforestation of former agricultural lands is a common practice in several countries. This is beneficial for avoiding diseases carry-over from previous forest generations and to expand forest areas. However, several biotic and abiotic risks have been reported in such stands, including a higher risk of Heterobasidion root rot after thinning. Therefore, this study investigates the spread of Heterobasidion root rot in three Picea abies (L.) Karst. plantations in Latvia established on former pasture and meadow lands and subjected to forest management practices. Initially, to determine average infe

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20

Staniaszek-kik, Monika, Jan Žarowiec, and Damian Chmura. "The effect of forest management practices on deadwood resources and structure in protected and managed montane forests during tree-stand reconstruction after dieback of Norway spruce." BALTIC FORESTRY 25, no. 2 (2019): 249–56. http://dx.doi.org/10.46490/vol25iss2pp249.

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Forest management practices can not only influence the amount of deadwood but also the proportions of particular elements. The goal of the present paper was to compare the amount, number of logs, stumps and snags and their dendrometrical parameters between the protected and managed forests in the Karkonosze Mts after a huge dieback of Picea abies. A massive decline of Norway spruce has been observed since the 1980s. The protected forests belong to Karkonosze National Park and the managed forests are situated in its buffer zone. In total, 1336 elements of coarse woody debris (CWD) were included

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21

Tarmu, Toomas, Andres Kiviste, Ain Näkk, Allan Sims, and Diana Laarmann. "The Application of Sonic Tomography (PiCUS 3 Sonic Tomograph) to Detect and Quantify Hidden Wood Decay in Managed Norway Spruce Stands." Forests 13, no. 8 (2022): 1260. http://dx.doi.org/10.3390/f13081260.

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Tree mortality plays a vital role in the accuracy of growth and yield calculations. Economic loss caused by Heterobasidion sp. and Armillaria sp. is a common issue in forestry. Estonian forests, which are mostly managed, are susceptible to fungal infection due to freshly exposed wood surfaces, such as stumps and mechanical wounds. External signs of infection are often scarce and may lead to incorrect stand vitality valuation. Modern devices, such as the PiCUS 3 Sonic Tomograph, can be used for non-destructive decay assessment. We assessed decay in two intensively managed Norway spruce (Picea a

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22

Arhipova, N., T. Gaitnieks, J. Donis, J. Stenlid, and R. Vasaitis. "Butt rot incidence, causal fungi, and related yield loss in Picea abies stands of Latvia." Canadian Journal of Forest Research 41, no. 12 (2011): 2337–45. http://dx.doi.org/10.1139/x11-141.

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Root and butt rot is the most destructive disease of conifers in the Northern Hemisphere, but little is known about the dynamics of yield loss in stands of different ages, site types, and species composition. This study aimed to estimate butt rot incidence, causal fungi, and related wood yield loss in Picea abies (L.) H. Karst. stands in Latvia. A total of 24 745 stumps were examined on 318 forest sites, and 21.8% of them contained rot. There was a positive correlation between stand age and butt rot frequency. Proportion of other tree species in a stand had no influence on incidence of the rot

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23

Webb, Sara L. "Windstorm damage and microsite colonization in two Minnesota forests." Canadian Journal of Forest Research 18, no. 9 (1988): 1186–95. http://dx.doi.org/10.1139/x88-182.

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Scattered trees were uprooted, snapped, or bent during a 1983 windstorm in two northwestern Minnesota pine forests. I tested potential correlates (tree species, tree size, cause of damage) of damage type, and compared consequences of the uprooting, snapping, and bending of trees by assessing postdamage survival and by surveying formation and colonization of microsites (mounds, pits, stumps, and dead boles). Larger trees damaged directly by wind were usually snapped and killed in both study areas, regardless of tree species. Smaller trees damaged by falling neighbors were either (i) bent withou

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24

Vasiliauskas, R., E. Larsson, K. H. Larsson, and J. Stenlid. "Persistence and long-term impact of Rotstop biological control agent on mycodiversity in Picea abies stumps." Biological Control 32, no. 2 (2005): 295–304. http://dx.doi.org/10.1016/j.biocontrol.2004.10.008.

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25

Nelson, E. E., and Rona N. Sturrock. "Susceptibility of Western Conifers to Laminated Root Rot (Phellinus weirii) in Oregon and British Columbia Field Tests." Western Journal of Applied Forestry 8, no. 2 (1993): 67–70. http://dx.doi.org/10.1093/wjaf/8.2.67.

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Abstract Several species of conifers were outplanted around infected stumps in Oregon and British Columbia to measure their susceptibility to laminated root rot caused by Phellinus weirii. Grand fir (Abies grandis) experienced nearly 30% mortality caused by P. weirii. Douglas-fir (Pseudotsuga menziesii) mortality exceeded 20%. Noble fir (A. procera), Sitka spruce (Picea sitchensis), giant sequoia (Sequoiadendron giganteum), western hemlock (Tsuga heterophylla), and ponderosa pine (Pinus ponderosa) mortality averaged less than 10%. Western white pine (P. monticola) and lodgepole pine (P. contor

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26

Piri, Tuula. "Early development of root rot in young Norway spruce planted on sites infected by Heterobasidion in southern Finland." Canadian Journal of Forest Research 33, no. 4 (2003): 604–11. http://dx.doi.org/10.1139/x02-200.

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Root rot infections in Norway spruce (Picea abies (L.) Karst.) regeneration, planted after the clear-cutting of spruce on sites infested by Heterobasidion, were investigated on 21 experimental plots in eight 2- to 23-year-old plantations. Heterobasidion root rot became evident about 10 years after planting and the proportion of infected spruces increased steadily with plantation age. The average number of planted spruces infected per old decayed stump was 0.2 trees in 2- to 9-year-old plantations, 0.8 trees in 11- to 15-year-old plantations, and 1.8 trees in 20- to 23-year-old plantations. Abo

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27

Piri, Tuula, and Sauli Valkonen. "Incidence and spread of Heterobasidion root rot in uneven-aged Norway spruce stands." Canadian Journal of Forest Research 43, no. 9 (2013): 872–77. http://dx.doi.org/10.1139/cjfr-2013-0052.

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Notwithstanding Norway spruce (Picea abies (L.) Karst.) is highly prone to root rot caused by Heterobasidion parviporum Niemelä & Korhonen, but little is known about the epidemiology of Heterobasidion root rot in spruce stands applied to uneven-aged management. To get insight into the development of Heterobasidion infections in this type of forest, the size and spatial distribution of individual genets of H. parviporum were determined in five uneven-aged managed Norway spruce stands in southern Finland. In these stands, all tree size classes (regeneration, intermediate, and overstory trees

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28

Varese, Giovanna Cristina, Giorgio Buffa, Anna Maria Luppi, Paolo Gonthier, Giovanni Nicolotti, and Gian Pietro Cellerino. "Effects of Biological and Chemical Treatments against Heterobasidion annosum on the Microfungal Communities of Picea abies Stumps." Mycologia 91, no. 5 (1999): 747. http://dx.doi.org/10.2307/3761528.

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29

Kärhä, Kalle, Ville Koivusalo, Teijo Palander, and Matti Ronkanen. "Treatment of Picea abies and Pinus sylvestris Stumps with Urea and Phlebiopsis gigantea for Control of Heterobasidion." Forests 9, no. 3 (2018): 139. http://dx.doi.org/10.3390/f9030139.

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Varese, Giovanna Cristina, Giorgio Buffa, Anna Maria Luppi, Paolo Gonthier, Giovanni Nicolotti, and Gian Pietro Cellerino. "Effects of biological and chemical treatments against Heterobasidion annosum on the microfungal communities of Picea abies stumps." Mycologia 91, no. 5 (1999): 747–55. http://dx.doi.org/10.1080/00275514.1999.12061080.

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31

Abrahamsson, Markus, and Matts Lindbladh. "A comparison of saproxylic beetle occurrence between man-made high- and low-stumps of spruce (Picea abies)." Forest Ecology and Management 226, no. 1-3 (2006): 230–37. http://dx.doi.org/10.1016/j.foreco.2006.01.046.

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Heinzelmann, Renate, Simone Prospero, and Daniel Rigling. "Virulence and Stump Colonization Ability of Armillaria borealis on Norway Spruce Seedlings in Comparison to Sympatric Armillaria Species." Plant Disease 101, no. 3 (2017): 470–79. http://dx.doi.org/10.1094/pdis-06-16-0933-re.

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Although Armillaria borealis is one of the closest relatives of the aggressive root rot pathogen A. ostoyae, little is known about its ecology. In central and northern Europe, A. borealis often co-occurs with A. ostoyae or A. cepistipes, a weak pathogen, in conifer or mixed-forest stands. In this study, the virulence of 10 A. borealis, nine A. ostoyae, and five A. cepistipes isolates toward 2- and 4-year-old potted Norway spruce (Picea abies) seedlings was assessed. In addition, the ability of all isolates to colonize fresh stumps cut from 6-year-old Norway spruce seedlings was tested. All ino

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33

Eriksson, Erik, Andrew R. Gillespie, Leif Gustavsson, et al. "Integrated carbon analysis of forest management practices and wood substitution." Canadian Journal of Forest Research 37, no. 3 (2007): 671–81. http://dx.doi.org/10.1139/x06-257.

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The complex fluxes between standing and harvested carbon stocks, and the linkage between harvested biomass and fossil fuel substitution, call for a holistic, system-wide analysis in a life-cycle perspective to evaluate the impacts of forest management and forest product use on carbon balances. We have analysed the net carbon emission under alternative forest management strategies and product uses, considering the carbon fluxes and stocks associated with tree biomass, soils, and forest products. Simulations were made using three Norway spruce ( Picea abies (L.) Karst.) forest management regimes

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34

Piri, Tuula, and Kari Korhonen. "The effect of winter thinning on the spread of Heterobasidion parviporum in Norway spruce stands." Canadian Journal of Forest Research 38, no. 10 (2008): 2589–95. http://dx.doi.org/10.1139/x08-103.

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Genets of Heterobasidion were identified in eight 43- to 56-year-old Norway spruce ( Picea abies (L.) Karst.) stands in southern Finland. Four of the stands had been thinned in winter ca. 10 years prior to the study, and four had been left unthinned. It was hypothesized that the felling of decayed trees promotes the vegetative spread of the fungus from thinning stumps into the adjacent trees, and hence the Heterobasidion genets should be larger in thinned stands. Although the number of infected stumps per areal unit was lower and the genets were slightly smaller in the previous tree generation

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35

Moroni, Martin T. "Disturbance history affects dead wood abundance in Newfoundland boreal forests." Canadian Journal of Forest Research 36, no. 12 (2006): 3194–208. http://dx.doi.org/10.1139/x06-195.

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Dead wood (dead standing tree (snag), woody debris (WD), buried wood, and stump) abundance was estimated in Newfoundland balsam fir (Abies balsamea (L.) Mill.) and black spruce (Picea mariana (Mill.) BSP) forests regrown following natural and anthropogenic disturbances. Although harvesting left few snags standing, natural disturbances generated many snags. Most were still standing 2 years after natural disturbance, but almost all had fallen after 33–34 years. Snag abundance then increased in stands aged 86–109 years. Natural disturbances generated little WD 0–2 years following disturbance. Har

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36

Nowakowska, Justyna A. "Application of DNA markers against illegal logging as a new tool for the Forest Guard Service." Folia Forestalia Polonica, Series A - Forestry 53(2) (September 1, 2011): 142–49. https://doi.org/10.5281/zenodo.30813.

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DNA markers are currently the most precise tool for forest tree species identification and can be used for comparative analyses of plant material. Molecular diagnosis of evidence and reference material is based on comparing the structure of DNA markers duplicated in the PCR reaction and estimation of the DNA profiles obtained in studied wood samples. For this purpose, the microsatellite DNA markers are the most suitable tool because of their high polymorphism and accurate detection of structural changes in the genome. The analysis of tree stump DNA profiles let avoid timely collection of data

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Brūna, Lauma, Guglielmo Lione, Kristīne Kenigsvalde, et al. "Inferences on the Susceptibility of Wood of Different Tree Species to Heterobasidion annosum Sensu Lato (Fr.) Bref. Primary Infections and on the Range of Pathogen Spores Dispersal." Forests 12, no. 7 (2021): 854. http://dx.doi.org/10.3390/f12070854.

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Stumps play a pivotal role in the epidemiology of the fungal forest pathogens Heterobasidion spp. because they are the main courts of primary airborne infections. The aims of this study were (i) to determine the susceptibility of seven tree species (i.e., Larix sibirica, Picea abies, Picea sitchensis, Pinus contorta, Pinus strobus, Pinus sylvestris and Pseudotsuga menziesii) to primary infection by H. annosum and H. parviporum through comparative inoculation experiments of conidia on wood discs in controlled conditions; (ii) to compare the susceptibility of wood discs of the same tree species

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DUDUMAN, Mihai-Leonard, and Iuliana VASIAN. "Effects of Volatile Emissions of Picea abies Fresh Debris on Ips duplicatus Response to Characteristic Synthetic Pheromone." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 40, no. 1 (2012): 308. http://dx.doi.org/10.15835/nbha4017261.

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Ips duplicatus is an important pest of Norway spruce (Picea abies) planted outside of its natural range. This species uses olfactory signals to identify the spruce trees favourable for colonisation. The knowledge of the beetlesâ€™ response to these stimuli is important for managing this pest. Therefore, the response of Ips duplicatus to a specific synthetic pheromone was investigated under some natural sources of volatile emissions characteristic of Norway spruce. The pheromone traps were installed in two types of forests: one with fresh and large Norway spruce stumps and piles of branches, re

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Motta, R., and J. L. Edouard. "Stand structure and dynamics in a mixed and multilayered forest in the Upper Susa Valley, Piedmont, Italy." Canadian Journal of Forest Research 35, no. 1 (2005): 21–36. http://dx.doi.org/10.1139/x04-153.

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Size, age, and spatial structures were studied in a mixed, multilayered forest located in the Upper Susa Valley in Piedmont, Italy, using complete stem mapping, dendrochronology, and spatial analysis on a 1-ha permanent plot. All trees with a diameter >4 cm at 50 cm height (991) and stumps (322) were mapped, measured, and cored. The 639 cross-dated samples were used to reconstruct the disturbance history, and dendroecological results were then compared with information on forest and land use from documentary archives. The stand has undergone substantial shifts in forest structure and specie

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Vasiliauskas, Rimvydas, Eugenijus Ju[sbreve]ka, Albertas Vasiliauskas, and Jan Stenlid. "Community of Aphyllophorales and Root Rot in Stumps of Picea abies on Clear-felled Forest Sites in Lithuania." Scandinavian Journal of Forest Research 17, no. 5 (2002): 398–407. http://dx.doi.org/10.1080/028275802320435414.

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Vasiliauskas, R., V. Lygis, M. Thor, and J. Stenlid. "Impact of biological (Rotstop) and chemical (urea) treatments on fungal community structure in freshly cut Picea abies stumps." Biological Control 31, no. 3 (2004): 405–13. http://dx.doi.org/10.1016/j.biocontrol.2004.05.006.

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Wikars, Lars-Ove, Erik Sahlin, and Thomas Ranius. "A comparison of three methods to estimate species richness of saproxylic beetles (Coleoptera) in logs and high stumps of Norway spruce." Canadian Entomologist 137, no. 3 (2005): 304–24. http://dx.doi.org/10.4039/n04-104.

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AbstractThe amount of dead wood in forests has decreased owing to modern forest practices, and many species associated with this habitat are currently threatened. In Sweden during the last decade, naturally downed logs have been retained and, at clearcuts, high stumps have been artificially created to maintain saproxylic (dead wood dependent) insects. We tested how much these types of dead wood are used by sampling saproxylic beetles in dead wood of Norway spruce (Picea abies (L.) Karst.; Pinaceae) in managed forests in central Sweden. To analyse how surveys should be conducted in these kinds

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Terhonen, E., H. Sun, M. Buée, R. Kasanen, L. Paulin, and F. O. Asiegbu. "Effects of the use of biocontrol agent (Phlebiopsis gigantea) on fungal communities on the surface of Picea abies stumps." Forest Ecology and Management 310 (December 2013): 428–33. http://dx.doi.org/10.1016/j.foreco.2013.08.044.

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Latva-Mäenpää, Harri, Tapio Laakso, Tytti Sarjala, Kristiina Wähälä, and Pekka Saranpää. "Variation of stilbene glucosides in bark extracts obtained from roots and stumps of Norway spruce (Picea abies [L.] Karst.)." Trees 27, no. 1 (2012): 131–39. http://dx.doi.org/10.1007/s00468-012-0780-x.

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Latva-Mäenpää, Harri, Tapio Laakso, Tytti Sarjala, Kristiina Wähälä, and Pekka Saranpää. "Root neck of Norway spruce as a source of bioactive lignans and stilbenes." Holzforschung 68, no. 1 (2014): 1–7. http://dx.doi.org/10.1515/hf-2013-0020.

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Abstract Bioactive compounds of acetone-water extracts obtained from the root neck (RN) of Norway spruce (Picea abies [L.] Karst.) have been studied for the first time. RN samples were divided into different zones and cut, and wood and bark were extracted separately with acetone-water. The extracts were analyzed by gas chromatography-mass spectrometry. The extractives have a tissue-specific distribution. Several lignans were identified in the heartwood. High concentrations (10%) of hydroxymatairesinol were found from the heartwood at the lowermost part of the RN. The inner part of the bark con

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Klavina, Darta, Lauma Bruna, Astra Zaluma, et al. "Infection and Spread of Root Rot Caused by Heterobasidion Parviporum in Picea Abies Stands after Thinning: Case Studies on Former Pasture and Meadow Lands." Environmental Sciences Proceedings 3, no. 1 (2020): 2. http://dx.doi.org/10.3390/iecf2020-07950.

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Afforestation of former agricultural lands is a well-established practice in several countries. It is beneficial for avoiding previous-generation forest diseases and expanding forest areas. However, several biotic and abiotic risks have been reported for such stands as well as a higher risk of Heterobasidion root rot after thinning. Therefore, this study investigates the spread patterns of Heterobasidion root rot in three Picea abies (L.) Karst. Plantations established on former pasture and meadow lands and subjected to forest management practices. First of all, to get an insight into the aver

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Caruso, Alexandro, Jörgen Rudolphi, and Göran Thor. "Lichen species diversity and substrate amounts in young planted boreal forests: A comparison between slash and stumps of Picea abies." Biological Conservation 141, no. 1 (2008): 47–55. http://dx.doi.org/10.1016/j.biocon.2007.08.021.

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Whitney, R. D. "Damage by Tomentosus root rot in white spruce plantations in Ontario, and the effects of thinning on the disease." Forestry Chronicle 69, no. 4 (1993): 445–49. http://dx.doi.org/10.5558/tfc69445-4.

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Mortality caused by Inonotus tomentosus (Fr.) Teng (Tomentosus root rot) to dominant and codominant trees was found in all but one of 17 white spruce (Picea glauca [Moench] Voss) plantations 43–58 years old. Even though mortality usually commences at 30–35 years, younger trees can be killed. An average of 0.7% of white spruce were killed annually over the 6-year study period.Average accumulated mortality of dominant and codominant trees was 10.3 % for all plantations. Butt cull in remaining living trees averaged 13.8% of gross merchantable volume in two plots that had been clearcut at Searchmo

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Jurevics, Arnis, Matthias Peichl, and Gustaf Egnell. "Stand Volume Production in the Subsequent Stand during Three Decades Remains Unaffected by Slash and Stump Harvest in Nordic Forests." Forests 9, no. 12 (2018): 770. http://dx.doi.org/10.3390/f9120770.

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The renewable energy policies of the European Union rely on forest biomass in achieving climate mitigation targets. In Sweden, where secondary residues from the forest industries are fully utilized, primary residues following harvest such as stumps and slash offer a potential as an additional biomass source. Stump and slash harvest may, however, have adverse effects on site productivity due to increased nutrient loss from the site which could negatively impact the stand volume production of the subsequent stand. Stand volume production is also affected by seedling survival, seedling input from

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ABRAHAMSSON, MARKUS, MATS JONSELL, MATS NIKLASSON, and MATTS LINDBLADH. "Saproxylic beetle assemblages in artificially created high-stumps of spruce (Picea abies) and birch (Betula pendula/pubescens) - does the surrounding landscape matter?" Insect Conservation and Diversity 2, no. 4 (2009): 284–94. http://dx.doi.org/10.1111/j.1752-4598.2009.00066.x.

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