Academic literature on the topic 'Picea abies stumps'

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Journal articles on the topic "Picea abies stumps"

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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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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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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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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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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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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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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 (1–30 cm), medium (31–100 cm) and tall (101–300 cm) saplings, and of both species. In total, 465 Picea and 623 Abies saplings
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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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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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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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Dissertations / Theses on the topic "Picea abies stumps"

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Rönnberg, Jonas. "Incidence of root and butt rot in consecutive rotations, with emphasis on Heterobasidion annosum in Norway spruce /." Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5630-4.pdf.

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Abrahamsson, Markus. "High-stumps and wood living beetles in the Swedish production forest landscape /." Alnarp : Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/2007126.pdf.

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Conference papers on the topic "Picea abies stumps"

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Čakšs, Roberts, and Baiba Jansone. "Long term effects of total biomass harvesting on understory vegetation and tree stand in Norway spruce stands." In Research for Rural Development 2023 : annual 29th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2023. http://dx.doi.org/10.22616/rrd.29.2023.006.

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Northern Europe will be one of the locations where the renewable energy from forests could displace fossil fuels as a result of climate change: therefore, it will become more crucial to maintain renewable materials that also collect CO2. By taking tree biomass out of forest stands, we could create more renewable resources to use in practice, but this has certain negative effects on the forest ecology, including nitrogen leaching and vegetation degradation. The goal of the study is to investigate the effects of full biomass removal (FBR) in Norway spruce (Picea abies (L.) H. Karst.) forest stan
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KLAVINS, Ivars, Arta BARDULE, and Zane LIBIETE. "CHANGES IN MACRONUTRIENT CONCENTRATIONS IN SOIL SOLUTION FOLLOWING REGENERATION FELLING IN PINE AND SPRUCE STANDS: WHOLE-TREE HARVESTING VERSUS STEM-ONLY HARVESTING." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.172.

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While conventional forest management in boreal and hemiboreal conditions has traditionally been targeted to use and enhance mainly provisioning services like timber production, the main goal of national and European forest policy is to ensure sustainable management of European forests in all aspects. Regeneration felling is a major disturbance in boreal and hemiboreal forests resulting in significant increase of organic matter on the forest floor in the form of logging residues (bark, small branches, tree tops) and severed roots (in case of stump harvesting), and can increase the risk of nutri
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