Academic literature on the topic 'Spruce stands'

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Journal articles on the topic "Spruce stands"

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De Noronha, Maísa, Rock Ouimet, Martin Barrette, Alain Leduc, and Yves Bergeron. "Influence of Leaf Litter and Humus Composition on the Development of Black Spruce Seedlings: A Greenhouse Experimentation." Forests 13, no. 11 (2022): 1832. http://dx.doi.org/10.3390/f13111832.

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In boreal forests in Canada, broadleaf stands are characterized by generally well-drained soils and a humus-rich layer. In contrast, spruce-moss stands are often characterized by more poorly drained soils and acidic humus layer. However, presence of these two forest types in various degrees of mixture in stands can be beneficial to spruce seedlings productivity. It was hypothesized that leaf litter and humus from pure spruces-moss stands, pure broadleaf stands, and mixed stand may influence Black spruce (Picea mariana (Mill.) BSP) seedling growth and development differently. A greenhouse exper
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Huuskonen, Saija, Tuulia Lahtinen, Jari Miina, Karri Uotila, Simone Bianchi, and Pentti Niemistö. "Growth Dynamics of Young Mixed Norway Spruce and Birch Stands in Finland." Forests 14, no. 1 (2022): 56. http://dx.doi.org/10.3390/f14010056.

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Mixed-species forests in Fennoscandia are of increasing interest because they may improve resilience, biodiversity, and productivity. Currently there is scarce knowledge available of the early growth dynamics of mixed spruce–birch stands in even-aged managed production forests with artificial regeneration of spruce. The main objective of our study was to examine the present state and the past growth dynamics of current single-storied, young spruce–birch (Picea abies (L.) Karst., Betula pendula Roth, Betula pubescens Ehrh.) stands (age 17–29 years), where spruce was planted and birch naturally
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Hanakova-Becvarova, Petra, Marian Horvath, Borivoj Sarapatka, and Vaclav Zouhar. "The effect of stand characteristics on soil organic carbon content in spruce and deciduous stands." Forest Systems 31, no. 1 (2022): e005. http://dx.doi.org/10.5424/fs/2022311-18824.

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Aim of study: To determine the effects of stand characteristics, which closely relate to forest management practices, on the soil organic carbon (SOC) content in the organic (O) and surface mineral (A) soil horizons in spruce and deciduous stands, and to show SOC dynamics during the life of production stands.
 Area of study: Spruce and deciduous stands located throughout the Czech Republic.
 Material and methods: The effects of age, density of stocking and canopy of stand on SOC content in the O and A horizons, and the difference between categories of variables and the trends of SOC
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Boucher, D., L. De Grandpré, and S. Gauthier. "Développement d’un outil de classification de la structure des peuplements et comparaison de deux territoires de la pessière à mousses du Québec." Forestry Chronicle 79, no. 2 (2003): 318–28. http://dx.doi.org/10.5558/tfc79318-2.

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Forest stand structure is an important element for biodiversity and, from a sustainable forest management perspective, uneven-sized stands should be managed in order to maintain the structural diversity over the landscape. The first objective of this study is to develop a statistical tool to characterize stand structure that can be used in forest management planning. The second objective is to classify the stand structure of two regions to illustrate a possible use for the tool. The statistical tool for characterizing stand structure has been developed from forest inventory data gathered by th
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Hansen, E. Matthew, José F. Negron, A. Steven Munson, and John A. Anhold. "A Retrospective Assessment of Partial Cutting to Reduce Spruce Beetle-Caused Mortality in the Southern Rocky Mountains." Western Journal of Applied Forestry 25, no. 2 (2010): 81–87. http://dx.doi.org/10.1093/wjaf/25.2.81.

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Abstract Tree susceptibility to bark beetle-caused mortality has been linked to stand characteristics such as basal area (BA) and average tree size, factors that can be manipulated through partial cutting. There is no experimental evidence, however, demonstrating the efficacy of partial cutting in spruce type. Such experiments are very difficult to complete because of the inability to manipulate bark beetle populations needed to challenge treated stands. To circumvent this difficulty, we identified spruce stands that were partially cut (for nonexperimental reasons) in advance ofbeetle activity
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Aza, Ana, Annika Kangas, and A. Maarit I. Kallio. "Value of Information on Root and Butt Rot Presence When Choosing Tree Species for a Previously Spruce-Dominated Stand in Norway." Forests 13, no. 10 (2022): 1562. http://dx.doi.org/10.3390/f13101562.

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Because the two common tree species in Norway, Picea abies L. Karst (Norway spruce) and Pinus sylvestris L. (Scots pine), differ in their susceptibility to the fungus Heterobasidion spp., converting at least parts of the rot-infested spruce stands to pine pays-off economically in some cases. Pixel-level information on rot levels and site indexes (SI) across the stand are required to identify these cases to make decisions that increase the expected economic return of the stand. Applying the Value of Information (VoI) concept, we assessed the value of such information when choosing between plant
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Simard, Martin, and Serge Payette. "Reduction of black spruce seed bank by spruce budworm infestation compromises postfire stand regeneration." Canadian Journal of Forest Research 35, no. 7 (2005): 1686–96. http://dx.doi.org/10.1139/x05-083.

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In the southern boreal forest of eastern Canada, black spruce (Picea mariana (Mill.) BSP) is subjected to both defoliating insect and fire disturbances. As black spruce depends on its aerial seed bank for postfire regeneration, reduction of cone crop during a spruce budworm (Choristoneura fumiferana (Clem.)) outbreak opens a vulnerability window during which stand regeneration could be hindered in the event of a fire. To assess the long-term effect of spruce budworm outbreak on black spruce reproductive potential, cone production and viable seed bank were estimated using cone crop surveys and
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Roessiger, Joerg, Ladislav Kulla, and Maroš Sedliak. "A high proportion of norway spruce in mixed stands increases probability of stand failure." Central European Forestry Journal 66, no. 4 (2020): 218–26. http://dx.doi.org/10.2478/forj-2020-0017.

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Abstract The decline of pure spruce forests in the Beskydy Mountains in the Czech Republic and Slovakia is mainly driven by bark beetle attacks and storm events. Salvage-harvest records based on timber volume on the forest-stand level document the extent of stand failure processed by salvage logging. On the basis of these records, the stand failure proportion was expressed as the proportion of timber volume processed by salvage harvest divided by the standing timber volume over a period of 10 years (sf). Two null hypotheses to be tested are that sf is not influenced by (H1) the size of trees e
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Данилов, Dmitriy Danilov, Смирнов, and A. Smirnov. "Effect of stand structure on density of pine and spruce wood in myrtillus forest type." Forestry Engineering Journal 4, no. 4 (2015): 13–20. http://dx.doi.org/10.12737/8434.

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Mixed stands of spruce and pine of myrtillus y forest types occupy large areas of the forest
 fund of the Leningrad region. For the theory and practice of forestry it is important to know the impact
 of plantations on the density of wood in bunk mixed spruce-pine stands. In mixed stands of
 pine and spruce disks and cores of wood species were selected from the model tree to determine the
 basic density by the method of maximum water capacity. The study of basic wood density of pine
 and spruce in the coniferous bunk stands revealed that its rates are higher for both sp
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Grodzki, Wojciech, Jerzy R. Starzyk, and Mieczysław Kosibowicz. "Impact of selected stand characteristics on the occurrence of the bark beetle Ips typographus (L.) in the Beskid Żywiecki Mountains." Forest Research Papers 75, no. 2 (2014): 159–69. http://dx.doi.org/10.2478/frp-2014-0015.

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Abstract Recently, Norway spruce stands in Beskid Żywiecki (Western Carpathians) have been plagued by bark beetle outbreak affecting an extensive area over a large range of altitudes. Georeferenced data (2356 records) from 2009-2011 of the volume of felled spruces showing insect infestation in forest sub-compartments were analysed with respect to selected site and stand characteristics. The infestation intensity varied between individual parts of the examined area. Spruce mortality, recorded evenly across all slope expositions, was higher in the zones 800 m - 1000 m and above 1000 m than in th
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Dissertations / Theses on the topic "Spruce stands"

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Karlsson, Kjell. "Growth allocation and stand structure in Norway spruce stands : expected taper and diameter distribution in stands subjected to different thinning regimes /." Uppsala : Dept. of Bioenergy, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200575.pdf.

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Daggett, R. Howard. "Long-Term Effects of Herbicide and Precommercial Thinning Treatments on Species Composition, Stand Structure, and Net Present Value in Spruce-Fir Stands in Maine: The Austin Pond Study." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/DaggettRH2003.pdf.

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Dahlberg, Helena. "Has modern Swedish forestry affected genetic diversity in Norway spruce stands?" Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-108056.

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Norway spruce is one of two dominating species in Swedish forestry and the most economically important tree species in Sweden. In order to preserve the ability to adapt to a changing environment and to keep populations healthy, genetic diversity has to be preserved. When choosing a small number of individuals from a natural stand to establish a seed orchard the population size decrease. With only a small number of genetically different individuals the risk of inbreeding increase. Furthermore if many clones of the same tree are used in one seed orchard there is also an increased risk selfing. T
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Titus, Brian. "Nutrient dynamics of Sitka spruce stands after clearfelling on peaty gley soils." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/13141.

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Ibrahim, K. G. "The uptake and dynamics of nitrogen in young stands of Sitka spruce." Thesis, University of Edinburgh, 1990. http://hdl.handle.net/1842/14137.

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The effects of nutrient and biomass distribution on growth and nutrition of an age series of young stands of Sitka spruce (<i>Picea sitchensis</i> (Bong.) Carr) prior to canopy closure have been studied to find out if the concept of steady-state nutrient status, pioneered by T. Ingestad, is valid under field conditions. Three similar experimental sites for this purpose were located at Manor Valley, Glentress and Innerleithen Forestry Commission Plantations, 40 to 50 km south of Edinburgh. Detailed quantitative analysis of the biomass and nutrient dynamics on tree growth have been made in relat
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Grossinho, Anabela Lopes. "Analysis of damaged Norway spruce stands using Landsat Thematic Mapper and geographic information systems." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363050.

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Klinka, Karel. "Structure and regeneration of old-growth stands in the engelmann spruce - subalpine fir zone." Forest Sciences Department, University of British Columbia, 1998. http://hdl.handle.net/2429/661.

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Old-growth stands are important for management, conservation, wildlife, recreation, and maintaining biological diversity in forested landscapes. However, we are lacking the information needed to adequately identify and characterize old-growth stands. This is especially true for high elevation, interior forests. The characterization of stand structure and regeneration pattern will help in the development of site-specific guidelines for identifying old growth stands and restoring some of the old-growth characteristics in managed stands. This pamphlet presents a synopsis of a study inve
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Brandtberg, Per-Olov. "Mixing birch in Norway spruce stands : impact on forest floor chemistry with implications for the buffering of acidity and the nutrition of spruce /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6069-7.pdf.

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Olsson, Per. "Effects of fertilisation on rhizospheric and heterotrophic soil CO2 efflux in boreal Norway spruce stands /." Umeå : Dept. of Forest Ecology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/10064860.pdf.

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Saetre, Peter. "Soil organisms, ground vegetation and ecosystem processes in mixed stands of Norway spruce and birch /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1998. http://epsilon.slu.se/avh/1998/91-576-5338-0.gif.

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Books on the topic "Spruce stands"

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000.

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Gruselle, Marie-Cécile. Litter decomposition in mixed spruce-beech stands. Waldbau-Institut, Albert-Ludwigs-Universität Freiburg, 2010.

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United States. Cooperative State Research Service. and Canada/United States Spruce Budworms Program., eds. Rating spruce-fir stands for spruce budworm damage in eastern North America. U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service, 1985.

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United States. Cooperative State Research Service and Canada/United States Spruce Budworms Program., eds. Rating spruce-fir stands for spruce budworm damage in eastern North America. U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service, 1985.

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H, Brookes Martha, United States. Cooperative State Research Service., and Canada/United States Spruce Budworms Program., eds. Managing trees and stands susceptible to western spruce budworm. U.S. Forest Service, Cooperative State Research Service, 1985.

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Book chapters on the topic "Spruce stands"

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Lindroth, Svante, and Sune Linder. "Yield Optimisation in Young Norway Spruce Stands." In Responses of Forest Ecosystems to Environmental Changes. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2866-7_174.

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Thelin, Gunnar, Harald Sverdrup, Johan Holmqvist, Ulrika Rosengren, and Magnus Linden. "Sustainability in spruce and mixed-species stands." In Developing Principles and Models for Sustainable Forestry in Sweden. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9888-0_12.

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Lula, Mikolaj, Kjersti Holt Hanssen, Martin Goude, et al. "Regeneration." In Managing Forest Ecosystems. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-70484-0_3.

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Abstract In the context of continuous cover forestry (CCF), natural regeneration is the preferred form of regeneration, but it is a long-lasting and complex process. Shelter density has a large effect on the regeneration process and results. The selection system, particularly suited for shade-tolerant species like Norway spruce, relies on continuous regeneration and ingrowth into larger size classes. Regeneration and ingrowth rates vary significantly among stands, influenced by site and historical factors, with no clear relationship to current stand conditions. In the group system, edge trees
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Chibisov, G. A. "Bioproductivity of Spruce Stands in Northern European Russia." In Boreal Forests and Global Change. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-0942-2_10.

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Slodičák, Marian, Jiří Novák, and David Dušek. "Management of Norway Spruce Stands in the Western Carpathians." In The Carpathians: Integrating Nature and Society Towards Sustainability. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-12725-0_22.

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Pretzsch, H., T. Hilmers, E. Uhl, et al. "Efficacy of Trans-geographic Observational Network Design for Revelation of Growth Pattern in Mountain Forests Across Europe." In Climate-Smart Forestry in Mountain Regions. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80767-2_5.

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AbstractUnderstanding tree and stand growth dynamics in the frame of climate change calls for large-scale analyses. For analysing growth patterns in mountain forests across Europe, the CLIMO consortium compiled a network of observational plots across European mountain regions. Here, we describe the design and efficacy of this network of plots in monospecific European beech and mixed-species stands of Norway spruce, European beech, and silver fir.First, we sketch the state of the art of existing monitoring and observational approaches for assessing the growth of mountain forests. Second, we int
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Hantula, Jarkko, Malin Elfstrand, Anne-Maarit Hekkala, et al. "Forest Damage." In Managing Forest Ecosystems. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-70484-0_12.

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Abstract Heterobasidion root and butt rot pose a greater risk in continuous cover forestry (CCF) than in rotation forestry (RF) in conifer-dominated forests, regardless of whether selective, gap or shelterwood cutting is used. Damage from wind, snow, spruce bark beetle, and large pine weevil are likely to be less severe in CCF than in RF. However, the conversion of RF to CCF may briefly expose stands to windthrow. Browsing by large herbivores on saplings may limit regeneration of tree species other than spruce in continuous cover forestry and reduce tree species diversity, but alternative silv
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Schulze, E. D., R. Hantschel, K. S. Werk, and R. Horn. "Water Relations of Two Norway Spruce Stands at Different Stages of Decline." In Forest Decline and Air Pollution. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-61332-6_15.

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Katzensteiner, K., O. Eckmuellner, R. Jandl, et al. "Revitalization experiments in magnesium deficient Norway spruce stands in Austria." In Nutrient Uptake and Cycling in Forest Ecosystems. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0455-5_54.

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Hartmann, P., M. Scheitler, and R. Fischer. "Soil Fauna Comparisons in Healthy and Declining Norway Spruce Stands." In Forest Decline and Air Pollution. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-61332-6_8.

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Conference papers on the topic "Spruce stands"

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Samariks, Valters, Ieva Jaunslaviete, Andis Adamovics, Sabine Dubasinska, and Aris Jansons. "GROUND VEGETATION BIOMASS AND CARBON POOL IN HEMIBOREAL OLD-GROWTH CONIFEROUS STANDS ON ORGANIC SOILS." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s13.36.

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Forest ground vegetation biomass plays a significant role in carbon (C) storage and contributes to the overall carbon pool of forest ecosystems. Ground vegetation, including understory plants, shrubs, and grasses, not only affects carbon sequestration through photosynthesis but also contributes to the carbon cycle as it decomposes and release carbon into atmosphere and soil. This process adds to soil organic matter and affects it carbon dynamics. Understanding the above and below-ground biomass of forest ground vegetation and its associated carbon pool is essential for improving local and glob
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Snepsts, Guntars, Zane Bigaca, Iveta Desaine, et al. "Characteristics of damages in Norway spruce stands." In Research for Rural Development, 2018. Latvia University of Life Sciences and Technologies, 2018. http://dx.doi.org/10.22616/rrd.24.2018.010.

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Desaine, Iveta, Endijs Baders, Juris Katrevics, Janis Smilga, and Janis Jansons. "Characteristic of browsing damages in Norway spruce stands." In Research for Rural Development, 2018. Latvia University of Life Sciences and Technologies, 2018. http://dx.doi.org/10.22616/rrd.24.2018.009.

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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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Gryaz'kin, Anatoliy, Olga Gavrilova, and E. Guryleva. "COMPARATIVE CHARACTERISTICS OF THE KISLICHNY SPRUCE AND THE DOLGOMOSHNY SPRUCE." In FORESTRY, FOREST MANAGEMENT, STATE FOREST MANAGEMENT IN THE 21ST CENTURY: CHALLENGES AND SOLUTIONS. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. https://doi.org/10.58168/bugaevva2024_11-15.

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Comparative data on the structure of the kislichny spruce and the Dolgomoshny spruce are present-ed. The objects of the study are located in the Prionezhsky forestry of the Republic of Karelia. The vegetation of the lower tiers was taken into account on circular accounting sites of 10 m2 each. It is shown that the average height and average diameter of stands differ by 30%. As part of the under-growth under the canopy of the dolgomoshny spruce forest, spruce and oak. The average height of the undergrowth is less, and the average age is greater. The drop-off rate is 38%. The species com-positio
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Kazi, I., Nataliia Beliaeva, and Anatoliy Gryaz'kin. "THE INFLUENCE OF THE DISTANCE BETWEEN A TREE AND THE UNDERGROWTH ON THE INTENSITY OF COMPETITIVE RELATIONS." In FORESTRY, FOREST MANAGEMENT, STATE FOREST MANAGEMENT IN THE 21ST CENTURY: CHALLENGES AND SOLUTIONS. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. https://doi.org/10.58168/bugaevva2024_21-26.

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Quantitative data on the influence of spruce, pine and birch trees on the undergrowth of spruce trees growing under the canopy of stands are presented. The object of the study is the spruce forests of the acidic forest type. The condition of the spruce undergrowth, its height and age were assessed within a radius of up to 6 m from the tree trunk. It was found that spruce undergrowth grows most successfully under birch crowns - the average height of the undergrowth is greater than that of the undergrowth under the crowns of spruce, and the average age is less. It is shown that in a radius of ab
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Zimelis, Agris, Santa Kaleja, and Sergey Ariko. "Evaluation of productivity and costs of Malwa forest machine in sanitary fellings in Latvia." In Research for Rural Development 2020. Latvia University of Life Sciences and Technologies, 2020. http://dx.doi.org/10.22616/rrd.26.2020.009.

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The topicality of the study is determined by the increasing demand for sanitary felling services currently mainly provided by manual work. Harvesting using hand-held motor instruments is a physically hard work whose costs are increasing rapidly, but labor availability is declining. In sanitary cuttings, additional complications are caused by the use of conventional machinery in harvesting, which necessitates the creation of wide (4 m) technological corridors and significantly increases the proportion of damaged remaining trees in a stand (according to past studies, a set of middle-class forest
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GRĪNVALDS, Ainārs. "UNIFICATION OF STANDS SELECTION FOR FINAL FELLING IN STRATEGIC AND TACTICAL PLANNING." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.071.

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The stand selection for cutting in tactical planning should be done according to the same principles like in strategic planning – to maximize net present value. The simple way of how to transfer the net present value maximization principle from strategic planning to tactical planning was created in Sweden. The method is based on annual changes in the net present value by postponing final felling. Forest inventory data and forestry modelling system was used for calculation of changes in net present value for pine, spruce, birch, aspen and black alder stands. And changes in net present value wer
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Spalvis, K. "THE POTENTIAL FOR COMPLETE BIOMASS UTILIZATION IN THINNING YOUNG STANDS OF NORWAY SPRUCE." In 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b32/s14.066.

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Belyaeva, Natalia, and Dmitry Danilov. "Development of undergrowth phenological spruce forms in different species composition of forest stands." In Research for Rural Development, 2018. Latvia University of Life Sciences and Technologies, 2018. http://dx.doi.org/10.22616/rrd.24.2018.018.

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Reports on the topic "Spruce stands"

1

DeMars, Donald J. Stand-density study of spruce-hemlock stands in southeastern Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2000. http://dx.doi.org/10.2737/pnw-gtr-496.

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Hard, J. S., and E. H. Holsten. Managing white and Lutz spruce stands in south-central Alaska for increased resistance to spruce beetle. U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1985. http://dx.doi.org/10.2737/pnw-gtr-188.

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3

Johnstone, Jill F., Teresa N. Hollingsworth, and F. Stuart Chapin. A key for predicting postfire successional trajectories in black spruce stands of interior Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2008. http://dx.doi.org/10.2737/pnw-gtr-767.

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4

Swanson, David. Tree investigations in the Noatak National Preserve, Alaska, 2011?2022: Old-growth and new forests. National Park Service, 2023. http://dx.doi.org/10.36967/2301700.

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Abstract:
Tree rings in the Noatak National Preserve provide information about the growth of trees at the cold limit of tree survival in northwestern North America. The present study was based on cores and other tree measurements (tree basal area, height, and number per unit area) of white spruce (Picea glauca) and balsam poplar (Populus balsamifera) trees taken from 39 permanent monitoring plots (34 with coreable trees) at three locations in the Preserve. The tree rings widths were measured and then normalized using a 50-year smoothing spline to remove the effects of growth variations through the life
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Werner, Richard A. Response of the engraver beetle, Ipsperturbatus, to semiochemicals in white spruce stands of interior Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1993. http://dx.doi.org/10.2737/pnw-rp-465.

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Levy, Louise S. Y., Robert L. Deal, and John C. Tappeiner. The density and distribution of Sitka spruce and western hemlock seedling banks in partially harvested stands in southeast Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2010. http://dx.doi.org/10.2737/pnw-rp-585.

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7

Hanley, Thomas A., and Cathy L. Rose. Influence of overstory on snow depth and density in hemlock-spruce stands: implications for management of deer habitat in Southeastern Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1987. http://dx.doi.org/10.2737/pnw-rn-459.

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8

Erickson, Glen W., and H. Michael Rauscher. The Status of White Spruce Plantations on Lake States National Forests. U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station, 1985. http://dx.doi.org/10.2737/nc-rn-330.

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Holsten, Edward H., and Richard A. Werner. Effectiveness of polyethylene sheeting in controlling spruce beetles (Coleoptera: Scolytidae) in infested stacks of spruce firewood in Alaska. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1993. http://dx.doi.org/10.2737/pnw-rp-466.

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Czapowskyj, Miroslaw M., Robert V. Rourke, Walter J. Grant, and Walter J. Grant. Growth and nutrient status of black spruce seedlings as affected by water table depth. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, 1986. http://dx.doi.org/10.2737/ne-rp-591.

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