Academic literature on the topic 'Douglas (Pseudotsuga menziesii Mirb. Franco)'

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Journal articles on the topic "Douglas (Pseudotsuga menziesii Mirb. Franco)"

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Funk, A., T. A. D. Woods, and Sarah J. Hopkinson. "Hormonema merioides n.sp., on Douglas-fir needles." Canadian Journal of Botany 63, no. 9 (1985): 1579–81. http://dx.doi.org/10.1139/b85-219.

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de Kort, Ingrid. "Relationships Between Sapwood Amount, Latewood Percentage, Moisture Content and Crown Vitality of Douglas Fir, Pseudotsuga Menziesii." IAWA Journal 14, no. 4 (1993): 413–27. http://dx.doi.org/10.1163/22941932-90000596.

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Relationships between sapwood amount, latewood percentage, moisture content and crown vitality were studied in 171 Douglas firs [Pseudotsuga menziesii (Mirb.) Franco] belonging to different vitality classes. The trees originated from 10 stands in the Netherlands varying in age from 25-70 years.
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Marshall, Valin G., and Hugh J. Barclay. "Response of young Douglas-fir to urea fertilizer applied on and off snow." Forestry Chronicle 70, no. 3 (1994): 294–98. http://dx.doi.org/10.5558/tfc70294-3.

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The effects of 200 kg N ha−1 applied as urea fertilizer on 50 cm of snow or on bare ground were studied in an 11-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation on Vancouver Island. Analysis was done on all trees per plot and on 20 selected dominant trees per plot. Up to 2 years after fertilization, urea significantly increased absolute DBH increments over controls in all trees and the 20 selected trees per plot; response to fertilization on snow was equal to that on bare ground. Between the 3rd and 9th year following fertilization, mean DBH increments were not significa
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Hart, V., M. Nentvichová-Hartová, and P. Tauchman. "Analysis of herbicide effects on Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration." Journal of Forest Science 56, No. 5 (2010): 209–17. http://dx.doi.org/10.17221/77/2009-jfs.

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Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration under parent stand after weed suppression was investigated in the area of the Training Forest Enterprise in Kostelec nad Černými lesy. The study evaluates two measurements made in a two-year interval. The parent stand, where Douglas fir grows in mixture with our domestic tree species, is one of the oldest and most productive stands at the Training Forest Enterprise in Kostelec nad Černými lesy. Herbicides for the control of weeds were applied onto three permanent experimental plots under the parent st
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Mondek, Jan, and Martin Baláš. "Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and its role in the Czech forests." Journal of Forest Science 65, No. 2 (2019): 41–50. http://dx.doi.org/10.17221/9/2019-jfs.

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The presented study summarizes the results concerning the effects of cultivation of Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) in the Czech Republic. It focuses on more recent results, published especially in the last decades, it includes also older relevant data. It describes the intensity of production as well as non-production forest functions in the conditions of the Czech Republic. It analyses the research results concerning the volume and value production in comparison with native tree species, also documents effects on soil and herb vegetation diversity in forest ecosystems, an
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Kaundun, Shiv Shankhar, Philippe Lebreton, and Alain Bailly. "Needle flavonoid variation in coastal Douglas-fir (Pseudotsuga menziesii var. menziesii) populations." Canadian Journal of Botany 76, no. 12 (1998): 2076–83. http://dx.doi.org/10.1139/b98-187.

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The variability of six Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) populations was studied with the help of needle flavonoids. Of the two proanthocyanidins and six flavonols detected and measured by high performance liquid chromatography, myricetin and prodelphinidin allowed partial separation of the sampled coastal Douglas-fir populations into three geographical groups. Even though conspicuous differences were found between the northernmost and southernmost provenances, flavonoid markers were insufficient to identify the origin of a coastal Douglas-fir population without
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Alfaro, René I., and Roy F. Shepherd. "Tree-Ring Growth of Interior Douglas-Fir After One Year's Defoliation by Douglas-Fir Tussock Moth." Forest Science 37, no. 3 (1991): 959–64. http://dx.doi.org/10.1093/forestscience/37.3.959.

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Abstract Reductions in ring width of Douglas-fir, Pseudotsuga menziesii [Mirb.] Franco, trees defoliated for 1 year by the Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), are reported. Trees were treated with a nuclear polyhedrosis virus, but the resultant epizootic which killed larvae and reduced defoliation took several weeks to develop and trees sustained varying degrees of damage. No negative effects of defoliation were noted in the year when feeding took place; on the contrary, a growth stimulation occurred. Defoliation levels above 50% resulted in growth reduction for 2 year
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Mauer, O., and E. Palátová. " Root system development in Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) on fertile sites." Journal of Forest Science 58, No. 9 (2012): 400–409. http://dx.doi.org/10.17221/94/2011-jfs.

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The paper analyses the root system development in the artificially established stands of Douglas fir aged 10, 20, 30, 60 and 80 years on aerated soils (Cambisols) without skeleton. On these sites, the Douglas fir develops a uniform root system of substitute taproots and anchors, which has great predispositions to assure the good mechanical stability of trees as well as its resistance to sudden changes in upper soil horizons. Several anchors growing in positive geotropic direction shoot from the stem base, several slant anchors shooting from the side of the stem base turn into the positive geot
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Kostic, Olga, Miroslava Mitrovic, and Pavle Pavlovic. "Douglas fir impact on the dynamics and composition of humus in the soil of indigenous beech forest in western Serbia." Zbornik Matice srpske za prirodne nauke, no. 138 (2020): 83–95. http://dx.doi.org/10.2298/zmspn2038083k.

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This study investigates the impact of organic matter from Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) on the amount and composition of humus in acid brown soil in a climatoregional beech forest (Fagetum moesiacae montanum B. Jov. 1967 s.l.) on Mt. Maljen. To accomplish this objective, we performed a one-year litterbag decomposition experiment with litterfall from Fagus moesiaca and Pseudotsuga menziesii. The quantitative and qualitative content of humus and the intensity of the decomposition process of organic mat?ter from beech and Douglas fir were analysed. Less humus was found during
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Sychra, D., and O. Mauer. "Prosperity of Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) plantations in relation to the shelter." Journal of Forest Science 59, No. 9 (2013): 352–58. http://dx.doi.org/10.17221/84/2012-jfs.

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The study evaluates the mortality, growth and qualitative characteristics of Douglas fir transplants planted out on clear-cut areas with different shelter. We assessed 11 clearings situated in the Forest Site Complex 4K – acidic beech (Fagetum acidophilum). The young trees were assessed 3 years after planting for the following parameters: total shoot length, increment, root collar diameter, number of multiple stems, stem curvature, crown form, length of needles, colour of needles and frost damage. The lowest mortality and the best growth of Douglas fir plants were recorded in small,
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Dissertations / Theses on the topic "Douglas (Pseudotsuga menziesii Mirb. Franco)"

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Koshy, Mathew P. "Genetic effects on wood shrinkage, relative density, grain angle, tracheid length, and fibril angle in Douglas-fir (Pseudotsuga menziessi var. menziesii (mirb.) franco)." Thesis, University of British Columbia, 1993. http://hdl.handle.net/2429/41465.

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Seven wood traits: shrinkage (longitudinal, tangential, and radial), relative density, grain angle, tracheid length, and fibril angle, and two growth traits, height and diameter at breast height were analyzed in 413 trees belonging to 48 full-sibfamilies (4 pollen and 12 seed parents) from an 18- year-old coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) progeny test . Clones from six of the parents also were sampled. Six samples per age level (age levels 0 to 4 along stem radii), with two rings in each age level, were examined in a bolt taken at breast height
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Akhter, Shaheen. "The provenance variation in natural durability of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)." Thesis, Bangor University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367387.

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Fontes, Luís. "The performance, constraints and potential of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] in Portugal." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249393.

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Marques, Renato. "Dynamique du fonctionnement mineral d'une plantation de douglas (pseudotsuga menziesii (mirb. ) franco) dans les monts du beaujolais (france)." Paris, ENGREF, 1996. http://www.theses.fr/1996ENGR0015.

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Ce travail avait comme objectif de repondre aux questions concernant l'impact du douglas sur le fonctionnement biogeochimique du sol. L'introduction de cette essence est recente en france et les donnees acquises devraient permettre la prise en compte des contraintes ecologiques dans la gestion de ces peuplements. Les resultats montrent que l'exces de nitrification et la mobilisation consecutive des cations sont les principaux facteurs determinant la composition chimique des solutions du sol. La dynamique liee a l'age des peuplements se traduit au niveau de tous les parametres cles du fonctionn
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Duponnois, Robin. "Les bactéries auxiliaires de la mycorhization du Douglas (Pseudotsuga menziesii (Mirb. ) Franco) par Laccaria laccata souche S238." Nancy 1, 1992. http://docnum.univ-lorraine.fr/public/SCD_T_1992_0023_DUPONNOIS.pdf.

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Des bactéries ont été isolées de mycorhizes de L. Laccata-Douglas et de carpophores de L. Laccata et certaines, préalablement choisies, ont été testées pour leur aptitude à stimuler l'infection ectomycorhizienne du Douglas par L. Laccata en conditions axéniques ou non. Les bactéries qui ont stimulé la mycorhization ont été appelées : bactéries auxiliaires de la mycorhization. Ces bactéries ont une action sélective sur le symbiote fongique mais pas sur la plante-hôte. Ces différentes propriétés ont été retrouvées dans des expériences en pépinières forestières ce qui laisse apparaître les éventu
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Ruiz, diaz britez Manuela. "Adaptation du douglas (Pseudotsuga menziesii (MIRB.) FRANCO) aux changements climatiques : étude rétrospective basée sur l’analyse des cernes." Thesis, Paris, Institut agronomique, vétérinaire et forestier de France, 2016. http://www.theses.fr/2016IAVF0011/document.

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La réponse des arbres à l'augmentation des sécheresses liées au réchauffement climatique dépend de leur capacité d'adaptation, c’est-à-dire de la variation génétique et de l’héritabilité de caractères adaptatifs impliqués dans la résistance à la sécheresse. Dans le chapitre I, nous identifions des proxys facilement mesurables de caractères adaptatifs impliqués dans la résistance à la sécheresse en comparant la microdensité du bois d’individus morts et survivants après la sécheresse de 2003. Les variables les plus discriminantes sont les densités moyennes de segments de haute et basse densité,
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Parladé, Izquierdo Xavier. "Técnicas de inoculación de abeto de Douglas (Pseudotsuga menziesii (Mirb.)Franco) con hongos ectomicorrícicos y su aplicación en reforestación." Doctoral thesis, Universitat Autònoma de Barcelona, 1992. http://hdl.handle.net/10803/32179.

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Pendent<br>El objetivo principal de este trabajo es la aplicación de técnicas de inoculación de platnas de abeto de Douglas (Pseudotsuga menziesii (Mirb.)Franco) con hongos ectomicorrícicos seleccionados para las condiciones españolas, con el objetivo de mejorar la calidad de planta de reforestación. Primeramente se ha realizado un proceso de selección de hongos por hábitat, especie asociada, capacidad de crecimiento en cultivo y formación de micorrizas in vitro. Sobre un total de 48 cepas probadas pertenecientes a 36 especies, se han seleccionado 32 cepas en 24 especies por su capacidad micor
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Cunningham, Catherine A. "Bark Beetle Activity in Douglas-Fir, Pseudotsuga menziesii var. glauca Mirb. (Franco), Following the 1994 Beaver Mountain Fire." DigitalCommons@USU, 1997. https://digitalcommons.usu.edu/etd/7267.

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The 1994 Beaver Mountain fire ignited the canopies of subalpine fir, Abies lasiocarpa, and spread ground fire into adjacent Douglas-fir forests, Pseudotsuga menziesii var. glauca. Despite shorter flight seasons due to lower annual temperatures and persistent snow, the Douglas-fir bark beetle, Dendroctonus pseudotsugae Hopkins, attacked a range of moderately fire-injured host conifers. Logistic regression models illustrated that in 1995 associated bark beetles selected large diameter Douglas-fir with 60-80% bole char, 60-80% crown volume scorch, and 50-70% probability of mortality due to fire.
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Chatthai, Malinee. "Molecular characterization and regulation of embryogenesis-associated genes in Douglas-fir (Pseudotsuga menziesiic (Mirb.) Franco)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/NQ44790.pdf.

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Kantarl, Mustafa. "Intraspecific variation in the IUFRO 16 year old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) : Provenance-progeny trial in Haney, British Columbia." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/27495.

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Variation in height, dbh and volume was analyzed after 16 years of growth. Results were compared with the 4th and 7th growing season measurements for height. This trial comprised 464 open-pollinated families representing 58 provenances planted at the University of British Columbia Research Forest in Haney, B.C. in 1971. Phenotypic variations between and within provenances, additive genetic variances, heritabilities, genetic gain and juvenile * mature correlations were estimated for the three growth variables according to zone groupings. The effects of provenance by block and family by block
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Books on the topic "Douglas (Pseudotsuga menziesii Mirb. Franco)"

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Gossner, Martin. Diversität und Struktur arborikoler Arthropodenzönosen fremdländischer und einheimischer Baumarten: Ein Beitrag zur Bewertung des Anbaus von Douglasie (Pseudotsuga menziesii (Mirb.) Franco) und Roteiche (Quercus rubra L.). Institut für Ökologie der TU Berlin, 2004.

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Osman, Khalid Amir. Growth responses of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) to defoliation. 1991.

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Li, Peng. Range-wide patterns of allozyme variation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). 1986.

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Li, Peng. Range-wide patterns of allozyme variation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). 1986.

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Zürich, Eidgenössische Technische Hochschule, ed. Productivité du Douglas vert (Pseudotsuga menziesii [Mirb.] Franco var. menziesii Franco) en relation avec des caractéristiques stationnelles. 1991.

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Lomas, M. Christine. Physiology and genetics of drought hardiness in coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) seedlings. 1999.

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Tsai, Ching-Hsiu. Dispersed repetitive sequences in the chloroplast genome of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). 1989.

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Temel, Fatih. Persistence and age-age genetic correlations of stem defects in Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco). 1997.

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Temel, Fatih. Persistence and age-age genetic correlations of stem defects in Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco). 1997.

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Schuch, Ursula K. Frost hardiness of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings raised in three nurseries. 1987.

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Book chapters on the topic "Douglas (Pseudotsuga menziesii Mirb. Franco)"

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Bastien, Jean-Charles, Leopoldo Sanchez, and Daniel Michaud. "Douglas-Fir (Pseudotsuga menziesii (Mirb.) Franco)." In Forest Tree Breeding in Europe. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6146-9_7.

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Goldfarb, B., and J. B. Zaerr. "Douglas-Fir [Pseudotsuga menziesii (Mirb.) Franco]." In Trees II. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-61535-1_28.

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Owens, John N., and Sheila J. Morris. "An Ultrastructural Study of Fertilization in Douglas Fir [Pseudotsuga menziesii (Mirb.) Franco]." In Sexual Reproduction in Higher Plants. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73271-3_54.

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Nagmani, R., M. A. Johnson, and R. J. Dinus. "Effect of Explant and Media on Initiation, Maintenance, and Maturation of Somatic Embryos in Pseudotsuga Menziesii (Mirb.) Franco (Douglas-fir)." In Woody Plant Biotechnology. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-7932-4_17.

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Chanway, C. P., R. A. Radley, F. B. Holl, and P. E. Axelrood. "Effect of Bacillus strains on growth of pine (Pinus contorta Dougl.), spruce (Picea glauca Voss.), and Douglas-fir (Pseudotsuga menziesii (Mirb. Franco)." In The Rhizosphere and Plant Growth. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3336-4_77.

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Fidalgo Fonseca, Teresa, Maria Emília Silva, José Luís Lousada, Jaime Sales Luis, and Ana Cristina Gonçalves. "Pseudotsuga menziesii ((Mirb.) Franco) in Portugal: A Review of Species Characteristics, Silviculture, and Management." In Vegetation Dynamics - Ecosystem Management, Conservation, and Protection [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1007948.

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Pseudotsuga menziesii ((Mirb.) Franco), known as Douglas fir, is a prominent conifer species native to North America. It is known for its adaptability, rapid growth, and high-quality wood. It was introduced to Europe in the nineteenth century and is currently the most abundant non-native tree species cultivated in Central European forests. In Portugal, the species was initially cultivated as an ornamental plant and used for experimental purposes. However, its notable qualities, particularly its high volume production, have garnered significant interest. This has led to the implementation of re
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Conference papers on the topic "Douglas (Pseudotsuga menziesii Mirb. Franco)"

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Ballian, Dalibor, and Mirzeta Memisevic Hodzic. "Carbon Binding of Different Provenances of Douglas fir (Pseudotsuga menziesii Mirb. Franco)." In 3rd International Congress on Engineering and Life Science. Prensip Publishing, 2023. http://dx.doi.org/10.61326/icelis.2023.46.

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Forest tree species are very important in terms of carbon sequestration. Trees store 50% to 75% of the carbon they take up from the atmosphere in their wood, and the rest is released back into the atmosphere during respiration. Douglas fir is forest tree species native to North America, but shown successful growth and high productivity and quality in Europe. Douglas-fir is also considered as a species with high carbon sequestration, with the yearly average carbon storage of 46,46 kg CO2/year and for this reason it is increasingly popular as a tree for planting. This research aims to select the
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Levin, Il'ya. "DEVELOPMENT OF PSEUDOTSUGA MENZIESII (PSEUDOTSUGA MENZIESII (MIRB.) FRANCO) ON THE TERRITORY OF THE ARBORETUM OF THE KHRENOVSKOY FOREST COLLEGE." In FORESTRY-BIOLOGICAL FOUNDATIONS OF SUSTAINABILITY OF NATURAL AND ARTIFICIAL PHYTOCOENOSES. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. http://dx.doi.org/10.58168/fbfsnap2024_113-118.

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In order to solve the problems of preserving the ecological potential in protective forests of the forest-steppe region of the European part of Russia, it is envisaged to develop and apply technologies that ensure the preservation of ecological functions of forests and their biological diversity, where the introduction of introduced species is allowed during afforestation. In order to study the development of Pseudotsuga menziesa as an introduced species in the forest-steppe region of the European part of Russia (on the example of the arboretum of the Khrenovskoy Forest College of the Voronezh
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