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Journal articles on the topic 'Siberian larch'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Semerikov, Vladimir L., Svetlana A. Semerikova, Yuliya A. Putintseva, Natalia V. Oreshkova, and Konstantin V. Krutovsky. "Mitochondrial DNA in Siberian conifers indicates multiple postglacial colonization centers." Canadian Journal of Forest Research 49, no. 8 (2019): 875–83. http://dx.doi.org/10.1139/cjfr-2018-0498.

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The geographic variation of the mitochondrial DNA in Siberian fir (Abies sibirica Ledeb.) was studied using the newly developed markers and compared with the phylogeographic pattern of another previously studied Siberian conifer, Siberian larch (Larix sibirica Ledeb.). Similar to Siberian larch, the distribution of mtDNA haplotypes in Siberian fir revealed clear differentiation among distinct geographic regions of southern Siberia and the Urals, likely indicating postglacial recolonization from several sources. The northern part of the range of both species was genetically homogeneous, which is probably due to its recent colonization from one of the glacial refugia. This conclusion is in agreement with published pollen and macrofossil data in Siberian fir and with the reconstruction of environmental niches indicating a dramatic reduction of the range and a likely survival of fir in certain southern areas during the Last Glacial Maximum (LGM), 21 thousand years ago. Although the modeling of the Siberian larch ecological niche reconstructed a shift of the range to the south at that period, the paleontological data indicated the presence of this species in most areas of the current range during LGM, which corresponds to the results of a previous historical demographic study suggesting that the population expansion preceding the LGM.

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2

McBeath, Jenifer H., M. Cheng, P. Gay, M. Ma, and John Alden. "First Report of Leptographium abietinum Associated with Blue Stain on Declining Western Siberian Larch in Alaska." Plant Health Progress 5, no. 1 (2004): 22. http://dx.doi.org/10.1094/php-2004-0326-01-hn.

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During 2002, dead tops, branch dieback, and resinosis were observed in Interior Alaska on stands of 20-year-old western Siberian larch (Larix sukaczewii), a fast-growing tree species introduced to Alaska in 1949. In this study, a Leptographium species was consistently recovered. This is believed to be the first report of blue stain caused by Leptographium in western Siberian larch in Alaska. No other Leptographium species have been found on western Siberian larch in Alaska. Accepted for publication 16 March 2004. Published 23 March 2004.

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3

Sadovsky, Michael G., Vladislav V. Birukov, Yuliya A. Putintseva, Nataliya V. Oreshkova, Eugene A. Vaganov, and Konstantin V. Krutovsky. "Symmetry of Siberian Larch Transcriptome." Journal of Siberian Federal University. Biology 8, no. 3 (2015): 278–86. http://dx.doi.org/10.17516/1997-1389-2015-8-3-278-286.

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4

Ponomarev, Evgenii, Viacheslav Kharuk, and Kenneth Ranson. "Wildfires Dynamics in Siberian Larch Forests." Forests 7, no. 12 (2016): 125. http://dx.doi.org/10.3390/f7060125.

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5

Polubojarinov, Oleg I., Anatoly N. Chubinsky, and Owe Martinsson. "Decay Resistance of Siberian Larch Wood." AMBIO: A Journal of the Human Environment 29, no. 6 (2000): 352–53. http://dx.doi.org/10.1579/0044-7447-29.6.352.

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6

Ulitin, M. M., and V. P. Besschetnov. "Comparative Assessment of Valuation Indicators of Siberian Larch (Larix sibirica) Forest Plantations when Introduction into the Nizhny Novgorod Region." Lesnoy Zhurnal (Forestry Journal), no. 6 (December 10, 2020): 33–41. http://dx.doi.org/10.37482/0536-1036-2020-6-33-41.

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The practice of using Siberian larch in artificial reforestation on the territory of the Nizhny Novgorod region in the forests of the Bogorodsk district is considered. It should be noted that the relevance of the development of forest plantations with the diversification of their species composition is due to the prospects for the expansion of the forest industry, which is determined by the State Program “Forestry Sector Development in the Russian Federation”. At the same time, despite of a wide range of possibilities of economic use of Siberian larch in the Nizhny Novgorod region, it is practically not used here when developing artificial stands for various purposes and structures. Scots pine is mainly used in the development of forest plantations in the Nizhny Novgorod region. Although the positive effect of the introduction of Siberian larch into the stand composition is confirmed by a comparative assessment of valuation indicators in forest plantations on the territory of the Bogorodsk district forestry. Based on the research results, 3 plots with the same types of forest site conditions were examined. High-quality Siberian larch stands with various species composition were formed on the plots. The work was carried out by the field methods; the principle of single logical distinction was their methodological framework. The characteristics of the trial plots were given on the basis of an on-site survey. All research results were statistically significant. A relationship has been established between the species composition and the stock of these stands. In larch plantations mixed in species composition, a larger stock has been accumulated than in pure stands. Also, the study revealed a relationship between the age of stands and the variability of the tested valuation indicators. The research results confirmed the effectiveness of the development of Siberian larch forest plantations in the Nizhny Novgorod region and the acceptability of using the forestry fund areas with forest site conditions of category C2 for these purposes. The obtained results will be useful in development of Siberian larch plantations in the Middle Volga region, since it has been revealed that the plantations in the Bogorodsk district of the Nizhny Novgorod region achieve the high productiveness at the age of 54.

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7

Sorokina, O. A., and Ch I. Kuular. "THE INFLUENCE OF ARTIFICIAL FOREST PLANTATIONS ON SOIL PROPERTIES IN THE COASTAL ZONE OF LAKE SHIRA." Mongolian Journal of Agricultural Sciences 21, no. 02 (2018): 68–71. http://dx.doi.org/10.5564/mjas.v21i02.908.

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The materials on the influence of artificial forest plantations on the soil properties in the conditions of the dry steppe of Khakassia are discussed. The soil-improving effect of plantations of Siberian larch, Siberian elm-tree, joint plantations of elm and larch, as well as pine and caragana tree, through optimization of moisture mode, biogenic accumulation of elements and agrochemical properties of soils is established. Ecologically sustainable phytocenoses are formed.

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8

Baldvinsdóttir, Guðríður, Sigþrúður Jónsdóttir, and Bjarni D. Sigurdsson. "Impact of different stocking densities of sheep on establishing stands of Larix sibirica in Iceland." Icelandic Agricultural Sciences 33 (2020): 89–101. http://dx.doi.org/10.16886/ias.2020.08.

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The present study was the first in Iceland to investigate the effects of different stocking densities of sheep on planted Siberian larch (Larix sibirica) trees. It covered two years and involved four stocking densities in enclosures with 0.1–3.0 m tall trees, as well as a grazed area on treeless commons. The grazing effect was followed for 75 days each summer. A significant grazing effect was found on the vegetation in both years. None of the sheep stocking densities had a measurable effect on the growth or the survival of the larch trees, however, and no damage was observed on their apical shoots. During the second summer, significant visual and measured browsing effects were recorded on side branches in enclosures with medium and high stocking densities. No trees <0.5 m were browsed, however. Siberian larch is generally not sought after by sheep and the results indicated that it may be generally safe to utilize established monoculture Siberian larch stands for sheep grazing during the summer months, if enough other vegetation is present.

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9

Myglan, V. S., G. T. Omurova, V. V. Barinov, and O. V. Kardash. "Methodological Aspects of Determining Type, Age, and Origin of Archaeological Wood: The Case of Fort Nadym." Archaeology, Ethnology & Anthropology of Eurasia 48, no. 3 (2020): 80–89. http://dx.doi.org/10.17746/1563-0110.2020.48.3.080-089.

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Archaeological studies in the forest-tundra zone of Western Siberia are highly relevant to studying the material culture, social structure, and ethnic history. The presence of permafrost ensures the unique preservation of organics in cultural layers, including timber, which makes it possible to conduct dendrochronological studies (calendar dating of samples, determination of species composition, typological analysis, and the source of the timber origin). In 2011–2012, during the excavations at Fort Nadym, 347 samples of wood were selected for the assessment of the age of wooden structures. The results showed that most samples belonged to three species of trees: Siberian larch (Larix sibirica Ledeb.), Siberian spruce (Picea obovata Ledeb.), and Siberian pine (Pinus sibirica Du Tour). The typological analysis revealed that walls were mostly built from spruce, pine logs, and half-logs, whereas the floors were made from larch and pine. To assess the origin of wood, a new methodological approach was proposed. As a result, it was demonstrated that the main building material was driftwood. This has allowed us to make more accurate interpretations and to specify the years of construction. The analysis indicates three periods of construction / reconstruction: the 1450s–1460s, 1470s–1480s, and 1520s–1570s. The new approach can be applied to other wooden monuments located on the banks of major water arteries of the Siberian forest-tundra zone.

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10

Merzlenko, M. D., P. G. Melnik, Yu B. Glazunov, A. A. Kozhenkova, and E. A. Perevalova. "Study results of pine and larch provenance trial in Serebryanoborsky experimental forest district." FORESTRY BULLETIN 24, no. 6 (2020): 34–43. http://dx.doi.org/10.18698/2542-1468-2020-6-34-43.

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The results of the cultivation of Scots pine (Pinus sylvestris L.) in the provenance trial in the Serebryanoborsky experimental forest district of the Institute of Forestry of the Russian Academy of Sciences are summarized. The silvicultural effect was assessed by a comprehensive indicator of the feasibility of introducing specific pine conventions. It was established that the use of pine seeds of exclusively local provenances cannot be considered justified. In the vast area of pine there are very remote populations of a local nature, the seed of which, when moved, can be successfully used to create highly productive artificial stands. The 68 year old geographical plantations of larch growth and production rates of 18 climotypes of 14 larch species were compared. These species are Polish larch (Larix polonica Racib.), European larch (Larix decidua Mill. f. Sudetica), Larix sukaczewii Dylis, Siberian larch (Larix sibirika Ledeb.), Larix cajanderi Mayr., Larix gmelinii Rupr., Larix Czekanovskii Szaf, Larix amurensis Kolesn., Olgan larch (Larix olgensis Henry), Japanese larch (Larix kaempferi (Lamb.) Carrière), Larix kurilensis Maur., Larix principis Rupprechtii Maur., Larix potaninii Bat, American larch (Larix laricina (Duroi) K. Koch). Polish larch, Japanese larch, European larch and Olgan larch have the best growth rate results. Climotypes from Siberia and American larch showed worst results. Polish larch (812 m3/ha) and Japanese (804 m3/ha) larch from the Southern Sakhalin have the highest stem volume. The final estimations showed that the climotypes of Polish larch, European larch from Sudetes and Japanese larch from the Southern Sakhalin are suitable for introduction in the Moscow Region. The climotypes from the Far East, namely Larix amurensis Kolesn., Olgan larch and Larix kurilensis Maur., had positive silvicultural effect. The inland climotypes from Asia together with American larch showed negative results.

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11

Lavrenov, Maksim, Sergey Vasil'ev, Vladimir Nikitin, and Vera Savchenkova. "INDIVIDUAL VARIABILITY OF MORPHOLOGICAL FEATURES OF POLISH LARCH IN THE CONDITIONS OF INTRODUCTION." Forestry Engineering Journal 9, no. 4 (2020): 33–40. http://dx.doi.org/10.34220/issn.2222-7962/2019.4/4.

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Polish larch trees are among the most valuable among forest species both in natural growing conditions and in the conditions of introduction. However, its taxonomic status is not fully resolved due to the similarity in morphological features with European and Siberian larch. We conducted a comparative analysis of these species of larch on the morphological features of cones and needles. The studies were carried out in the conditions of introduction in the center of the European part of Russia. We present the average value of the trait (XSR ± Sx) and the degree of its variation (V %). The reliability of the difference between the samples according to these characteristics was determined based on the calculation of the student's criterion t. As a result, we found that the Polish larch has smaller cones and significantly differs from the European and Siberian larch in all studied features (length of cones, width of cones, number of scales in cones, length of needles). These results indicate the isolation of the Polish larch, but this pattern can be expressed not only when referring to the Polish larch in the rank of an independent species – Larix polonica Racib., but also as a subspecies of European larch (Larix decidua var. polonica (Racib. ex Wóycicki) Ostenf. & Syrach).

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12

Rangen, Sheila A., Alex W. L. Hawley, and Robert J. Hudson. "Relationship of snowshoe hare feeding preferences to nutrient and tannin content of four conifers." Canadian Journal of Forest Research 24, no. 2 (1994): 240–45. http://dx.doi.org/10.1139/x94-035.

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The relative preferences of snowshoe hares for native and exotic tree species and the relationship of these preferences to nutritional constituents and phenols have important forestry management implications. Thus, feeding preferences of confined snowshoe hares (Lepusamericanus Erxleben) for Siberian larch (Larixsibericus (Endl.) Sabine ex Trautv.), Norway spruce (Piceaabies (L.) Karst.), white spruce (Piceaglauca (Moench) Voss), and black spruce (Piceamariana (Mill.) B.S.R) were examined under two experimental ad libitum feeding conditions. At the end of experiment 1, two-year-old Siberian larch and Norway spruce were equally selected by hares. Twigs and stems of Siberian larch, however, were browsed almost exclusively during the first few days of the experiment, while white spruce was browsed very little at all. Siberian larch was richer in crude protein and lower in fiber than white spruce and Norway spruce, whereas Norway spruce was lower in condensed tannins and total phenols than the other two species. In experiment 2, twigs and stems of 4-year-old black spruce were preferred to those of white spruce. Black spruce contained significantly higher concentrations of crude protein, calcium, and phosphorus and lower concentrations of cellulose and total phenols than white spruce. Overall, white spruce was most resistant to hare damage, though the lack of preference was not reflected in either low nutrient or high tannin values. In fact, concentrations of condensed tannins and total phenols had no antifeedant effects.

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13

Sykacek, Eva, Notburga Gierlinger, Rupert Wimmer, and Manfred Schwanninger. "Prediction of natural durability of commercial available European and Siberian larch by near-infrared spectroscopy." Holzforschung 60, no. 6 (2006): 643–47. http://dx.doi.org/10.1515/hf.2006.108.

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Abstract The natural durability of larch wood is described as being highly variable, ranging from non-durable to durable. In this study, FT-NIR spectroscopy was investigated for its ability to predict the natural durability of commercially available larch wood. Samples originated from approximately 60 European and 25 Siberian larch trees, provided by three Austrian-based wood industries. Natural durability tests were performed using the test fungi Gloeophyllum trabeum and Coniophora puteana. FT-NIR spectra were recorded and average spectra were calculated for calibration modelling. The models were strong [R2 (CV)=70.7–95.19, RMSEP=0.063–0.026] and showed better suitability with spectra acquired from radial surfaces compared to those from axial surfaces. The prediction model was valid across larch species (European and Siberian), so that exact knowledge of the growth and site conditions was not required.

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14

Oberhofnerová, Eliška, Miloš Pánek, Milan Podlena, Miloš Pavelek, and Irena Štěrbová. "Color Stabilization of Siberian and European Larch Wood Using UVA, HALS, and Nanoparticle Pretreatments." Forests 10, no. 1 (2019): 23. http://dx.doi.org/10.3390/f10010023.

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Reducing discoloration of wood due to photodegradation caused by ultraviolet (UV) and visible (VIS) radiation enhances its aesthetical value and prolongs the overall service life of protective coatings. In this study, the efficiency of pretreatments with different active ingredients to reduce degradation and stabilize the color of Siberian (Larix sibirica Ledeb.) and European larch (Larix decidua Mill) wood was investigated. UV absorbers (UVA), hindered amine light stabilizers (HALS) and zinc oxide nanoparticles were used in twenty different pretreatments. The ability to protect wood surface against radiation was evaluated via color and gloss change measurements during artificial ageing. The efficiency of tested color-stabilizing pretreatments differed for Siberian and European larch and not all of them reduced discoloration. The most effective pretreatments were based on a combination of UVA and HALS in a synergistic effect. Overall, the best efficiency from tested variants for larch wood generally was observed for combination of Eversorb 80 on benzotriazole basis + Eversorb 93 on a piperidinyl basis. The pretreatments did not significantly affect the gloss values. The results revealed convenient variants of stabilizers for Siberian and European larch wood and confirmed different compatibility between specific wood species and color stabilizers.

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15

Lashchinskiy, N. N., and N. V. Lashchinskaya. "Syntaxonomy of larch open woodlands on West-Siberian plain." Vegetation of Russia, no. 35 (2019): 61–76. http://dx.doi.org/10.31111/vegrus/2019.35.61.

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Larch open woodlands fr om West Siberian forest-tundra zone are described based on 119 original relevйs performed by authors in 2009–2016 years in central part of the West Siberian plain between 65.5–67.5°N.

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16

Kelliher, F. M., D. Y. Hollinger, E. D. Schulze, et al. "Evaporation from an eastern Siberian larch forest." Agricultural and Forest Meteorology 85, no. 3-4 (1997): 135–47. http://dx.doi.org/10.1016/s0168-1923(96)02424-0.

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17

Ivanova, A. N., I. N. Trets’yakova, and A. S. Vyazovetskova. "Induction of androgenic cultures in Siberian larch." Russian Journal of Developmental Biology 37, no. 1 (2006): 27–36. http://dx.doi.org/10.1134/s106236040601005x.

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18

Kharuk, Viacheslav I., Kenneth J. Ranson, Maria L. Dvinskaya, and Sergey T. Im. "Wildfires in northern Siberian larch dominated communities." Environmental Research Letters 6, no. 4 (2011): 045208. http://dx.doi.org/10.1088/1748-9326/6/4/045208.

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19

Ruuskanen, T. M., H. Hakola, M. K. Kajos, H. Hellén, V. Tarvainen, and J. Rinne. "Volatile organic compound emissions from Siberian larch." Atmospheric Environment 41, no. 27 (2007): 5807–12. http://dx.doi.org/10.1016/j.atmosenv.2007.05.036.

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20

Roques, Alain, Jiang-Hua Sun, Xu-Dong Zhang, Gwennael Philippe, and Jean-Paul Raimbault. "EFFECTIVENESS OF TRUNK-IMPLANTED ACEPHATE FOR THE PROTECTION OF CONES AND SEEDS FROM INSECT DAMAGE IN FRANCE AND CHINA." Canadian Entomologist 128, no. 3 (1996): 391–406. http://dx.doi.org/10.4039/ent128391-3.

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AbstractFrom 1989 to 1993, trunk implants of acephate were tested for the control of seed and cone insect damage to conifer species in France and northeastern China. The treatments were promising for the control of the major pests that feed on cone and seed tissues, including cone flies, coneworms, and seedworms, in European and Siberian larch, Norway spruce, Scots and mountain pine. In contrast, acephate implants did not prevent seed chalcid damage nor that of gall midges in Douglas-fir, European larch, and Siberian larch. Treatment generally increased seed yield, but a significant increase in the number of filled seeds was seen only when chalcids and midges were absent. The 2-year effect of implants seemed limited. Acephate implantation did not seem to affect seed germination.

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21

Kämppi, Riikka, Hanna Hörhammer, Anja Leponiemi, and Adriaan van Heiningen. "Pre-extraction and PSAQ pulping of Siberian larch." Nordic Pulp & Paper Research Journal 25, no. 2 (2010): 243–48. http://dx.doi.org/10.3183/npprj-2010-25-02-p243-248.

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Abstract The aim of this study was to find conditions under which it is possible to produce hemicelluloses-rich extract from Siberian larch in addition to pre-extracted pulp with a yield comparable to normal kraft pulp. The study was conducted in order to determine proof of concept of a process utilizing Siberian larch for production of papermaking pulp and biochemically obtained value-added products, i.e. biofuels or lactic acid. By pre-extraction at 160 ºC for 60 minutes approximately 17% of the wood material could be dissolved. At kappa number 30, the pre-extracted kraft pulp gave 5% lower total yield than a conventional kraft pulp. Addition of 4% polysulfide (PS) and 0.1% anthraquinone (AQ) on wood increased the pre-extracted kraft pulp yield nearly to the same level as that of regular kraft pulp. Pre-extraction at 160 ºC for 60 minutes allowed reduction of EA charge by 3% on wood and Hfactor by 300-450. The viscosity of the pre-extracted PSAQ kraft pulps was higher than that of conventional larch kraft pulps and had a somewhat inferior strength and optical properties. The results indicate that under optimized conditions it is possible to produce preextracted PSAQ larch pulp without significant losses in pulp yield and quality, and in addition generate a new feed stock of carbohydrates for further utilization for value-added products.

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22

Šimůnková, Kristýna, Eliška Oberhofnerová, Ladislav Reinprecht, Miloš Pánek, Milan Podlena, and Irena Štěrbová. "Durability of Selected Transparent and Semi-Transparent Coatings on Siberian and European Larch during Artificial Weathering." Coatings 9, no. 1 (2019): 39. http://dx.doi.org/10.3390/coatings9010039.

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This paper compares the resistance of 20 commercial transparent and semi-transparent coatings applied to European and Siberian larch during artificial weathering in Xenotest. The change in gloss, colour, contact angle of wetting, resistance to Aspergillus niger and Penicillium brevicompactum moulds was evaluated, and visual changes at the top surface of treated wood species were measured. Overall, the durability of coatings on European larch was higher than that on Siberian larch. The most durable of the tested coatings was a thin-film, i.e., semi-transparent oil-based film containing TiO2 pigment and propiconazole fungicide. Of the transparent coatings, the most stable was a thick acrylic coating. Conversely, penetrating transparent oil systems had low colour stability and overall lifespan. Artificial weathering of all of the coatings resulted in a marked decrease in their resistance to moulds.

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23

Gostev, Moses, Gregory Wiles, Rosanne D'Arrigo, Gordon Jacoby, and Peter Khomentovsky. "Early summer temperatures since 1670 A.D. for Central Kamchatka reconstructed based on a Siberian larch tree-ring width chronology." Canadian Journal of Forest Research 26, no. 11 (1996): 2048–52. http://dx.doi.org/10.1139/x26-230.

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A tree-ring width chronology of larch (Larixkurilensis Mayr) has been developed from along the Bystraya River near Esso in the interior valley of the Kamchatka Peninsula, Russia. The chronology, which covers from 1670 to 1992, explains 38% of the variance in May–June temperatures for the Esso meteorological station. This ring-width series is used to develop the first dendroclimatic reconstruction for Kamchatka. We caution that the Esso station record, the closest to the tree-ring site, is only 42 years in length, making model verification difficult. Periods of above-average temperatures are inferred for ca. 1750, 1800, and over the last few decades; colder than average conditions are inferred for 1710–1720, 1760–1770s, and 1860–1880s. The ring-width chronology cross-dates with other larch tree-ring data for Kamchatka and, during certain intervals, with a larch ring-width record from eastern Siberia. Comparison of the two records suggests that the insertion of a missing ring for the year 1816 in the eastern Siberian series is not justified. A birch (Betulaermanii Cham.) chronology from a coastal site near Petropavlovsk-Kamchatskiy correlates with July–August temperatures. Both the larch and more widespread birch species show promise for further dendroclimatic studies in Kamchatka.

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24

Uemura, Shigeru, Satoshi Tsuda, and Sakae Hasegawa. "Effects of fire on the vegetation of Siberian taiga predominated by Larixdahurica." Canadian Journal of Forest Research 20, no. 5 (1990): 547–53. http://dx.doi.org/10.1139/x90-071.

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In the summer of 1988, a vegetation survey of the Siberian taiga was conducted in a discontinuous permafrost zone of northern China where a destructive fire had occurred in the spring of 1987. The dominant forest cover of this area was larch, with spruce forests occurring in wet valleys and pine forests on steep, dry slopes. The vertical structure of forests showed that the spruce forests were preceded by larch forests; however, most of the larch forests were self-renewable probably because their habitats were too dry for spruce trees to compete. In larch forests, the 1987 fire seriously damaged perennial herbs; in spruce forests, however, most of the herbaceous plants were protected by wet conditions of their habitats, except feather mosses, which could not survive in the habitat opened by fire. Many plants of the burnt habitats recovered vegetatively; in particular, the burnt stems of birch trees frequently sprouted many shoots and consequently appeared to be contributing to the rapid reestablishment of larch, which is generally preceded by birch trees in ecological succession. Pine forests were not self-renewable; however, they seemed independent of the normal course of succession by dominating dry habitats where their competitors were not successful.

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25

Bajer, Tomáš, Jakub Šulc, Karel Ventura, and Petra Bajerová. "Volatile compounds fingerprinting of larch tree samples for Siberian and European larch distinction." European Journal of Wood and Wood Products 78, no. 2 (2020): 393–402. http://dx.doi.org/10.1007/s00107-020-01498-w.

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26

Chen, F., Y.-J. Yuan, W.-S. Wei, et al. "PRECIPITATION–TEMPERATURE INTERACTIONS IN THE WEST ALTAY MOUNTAINS INFERRED FROM TREE RINGS OF SIBERIAN LARCH." IAWA Journal 36, no. 2 (2015): 242–53. http://dx.doi.org/10.1163/22941932-00000097.

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Siberian larch (Larix sibirica) trees were studied in a drought-stressed, lowe-levation Taiga forest in the Altay Mountains for their potential to be used for reconstructing precipitation. A climate/growth analysis provided evidence that the tree-ring widths were strongly determined by the climatic conditions from May to July, positively by precipitation and negatively by temperature. Nevertheless, the resulting regional tree-ring chronology of Siberian larch offers only a limited possibility to perform reliable reconstructions of precipitation as only 30.8% of the total variation of the actual April–July precipitation was explainable. Drought events reflected by the chronology were compared with historical records and other tree-ring derived climate reconstructions, showing some common events of climate extremes over much of Central Asia. This new Siberian larch chronology and an earlier maximum latewood density (MXD) chronology from the neighboring region reveal that the local climate is mainly characterized by cold/wet and warm/dry situations over the past 251 years. This study demonstrates that the use of both tree-ring width and MXD data may increase information of past climate variability in the Altay mountain region.

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27

Antonova, G. F., and V. V. Stasova. "Seasonal development of phloem in Siberian larch stems." Russian Journal of Developmental Biology 39, no. 4 (2008): 207–18. http://dx.doi.org/10.1134/s1062360408040024.

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28

Kauhanen, M., E. J. Vainio, J. Hantula, G. G. Eyjolfsdottir, and P. Niemelä. "Endophytic fungi in Siberian larch (Larix sibirica) needles." Forest Pathology 36, no. 6 (2006): 434–46. http://dx.doi.org/10.1111/j.1439-0329.2006.00472.x.

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CHLEBICKI, ANDRZEJ, VIKTOR A. MUKHIN, and NADEZHDA USHAKOVA. "Fomitopsis officinalis on Siberian Larch in the Urals." Mycologist 17, no. 3 (2003): 116–20. http://dx.doi.org/10.1017/s0269915x03003057.

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Sato, Hisashi, and Hideki Kobayashi. "Topography Controls the Abundance of Siberian Larch Forest." Journal of Geophysical Research: Biogeosciences 123, no. 1 (2018): 106–16. http://dx.doi.org/10.1002/2017jg004096.

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SHUMAN, JACQUELYN KREMPER, HERMAN HENRY SHUGART, and THOMAS LIAM O'HALLORAN. "Sensitivity of Siberian larch forests to climate change." Global Change Biology 17, no. 7 (2011): 2370–84. http://dx.doi.org/10.1111/j.1365-2486.2011.02417.x.

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32

Ivanova, S. Z., A. G. Gorshkov, A. V. Kuzmin, I. I. Gordienko, and V. A. Babkin. "Phenolic compounds of Siberian and Dahurian larch phloem." Russian Journal of Bioorganic Chemistry 38, no. 7 (2012): 769–74. http://dx.doi.org/10.1134/s1068162012070096.

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33

Delcourt, Clement J. F., Alisha Combee, Brian Izbicki, et al. "Evaluating the Differenced Normalized Burn Ratio for Assessing Fire Severity Using Sentinel-2 Imagery in Northeast Siberian Larch Forests." Remote Sensing 13, no. 12 (2021): 2311. http://dx.doi.org/10.3390/rs13122311.

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Fire severity is a key fire regime characteristic with high ecological and carbon cycle relevance. Prior studies on boreal forest fires primarily focused on mapping severity in North American boreal forests. However, the dominant tree species and their impacts on fire regimes are different between North American and Siberian boreal forests. Here, we used Sentinel-2 satellite imagery to test the potential for using the most common spectral index for assessing fire severity, the differenced Normalized Burn Ratio (dNBR), over two fire scars and 37 field plots in Northeast Siberian larch-dominated (Larix cajanderi) forests. These field plots were sampled into two different forest types: (1) dense young stands and (2) open mature stands. For this evaluation, the dNBR was compared to field measurements of the Geometrically structured Composite Burn Index (GeoCBI) and burn depth. We found a linear relationship between dNBR and GeoCBI using data from all forest types (R2 = 0.42, p < 0.001). The dNBR performed better to predict GeoCBI in open mature larch plots (R2 = 0.56, p < 0.001). The GeoCBI provides a holistic field assessment of fire severity yet is dominated by the effect of fire on vegetation. No significant relationships were found between GeoCBI components (overall and substrate stratum) and burn depth within our fires (p > 0.05 in all cases). However, the dNBR showed some potential as a predictor for burn depth, especially in the dense larch forests (R2 = 0.63, p < 0.001). In line with previous studies in boreal North America, the dNBR correlated reasonably well with field data of aboveground fire severity and showed some skills as a predictor of burn depth. More research is needed to refine spaceborne fire severity assessments in the larch forests of Northeast Siberia, including assessments of additional fire scars and integration of dNBR with other geospatial proxies of fire severity.

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Oreshkova, N. V., M. M. Belokon, and S. Jamiyansuren. "Genetic diversity, population structure, and differentiation of Siberian larch, Gmelin larch, and Cajander larch on SSR-marker data." Russian Journal of Genetics 49, no. 2 (2013): 178–86. http://dx.doi.org/10.1134/s1022795412120095.

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35

HÖRHAMMER, HANNA, OKSANA BEREZINA, EERO HILTUNEN, TOM GRANSTRÖM, and ADRIAAN VAN HEININGEN. "Semi-bleached paper and fermentation products from a larch biorefinery." October 2012 11, no. 10 (2012): 31–39. http://dx.doi.org/10.32964/tj11.10.31.

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This study was focused on the products from a larch biorefinery, specifically bleached paper and different fermentation products. Siberian larch (Larix sibirica Lebed.) wood chips were treated with water in a pre-extraction (PE) stage. The larch extract was removed by drainage and fermented into different products. Eight different bacteria strains were tested. The extracted wood chips were mildly washed before kraft pulping with polysulfide (PS) and anthraquinone (AQ). The PE-PSAQ pulps were bleached to about 80% brightness. Laboratory paper sheets were made and tested for different paper properties, and a conventional larch kraft pulp was also prepared as reference. The larch PE-PSAQ paper and the larch kraft paper had similar properties. The removal of a significant amount of hemicelluloses from the wood chips before pulping was not a detriment to the paper properties.

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36

Mikson, Darya S., and Viktor I. Roshchin. "Hydrocarbons and Ethers of Extractive Substances of Siberian Larch Needles." Lesnoy Zhurnal (Forestry Journal), no. 3 (May 20, 2021): 170–85. http://dx.doi.org/10.37482/0536-1036-2021-3-170-185.

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Siberian larch (Larix sibirica L.) is the main commercial species in Russia. Currently, larch woody greens are underutilized. They are considered a waste product from logging. This is due to the lack of knowledge on the composition of compounds and the variability of the raw material source itself as a result of the fall of the needles. The research purpose is to study the composition of hydrocarbons and esters from Siberian larch needles in summer and autumn collection from the Tomsk region. The shredded needles were extracted with propan-2-ol; then, after distillation of the solvent, substances soluble in petroleum ether (PE, 40–70 °С) were isolated. The latter were divided into free acids (31.5 % for green needles and 28.0 % for yellow needles) and neutral substances (59.8 and 48.1 %, respectively). Then, eutral substances were chromatographed on silica gel: hydrocarbons (2.43 and 3.02 %, hereinafter from neutral substances of green and yellow needles, respectively), esters (31.30 and 33.80 %) and triglycerides (11.70 % and 6.44 %). The ester and triglyceride fractions were exposed to alkaline hydrolysis and the acidic components of esters (9.12 and 24.80 %) and triacylglycerols (17.43 and 26.15 %) were produced. Fractions of unsaponifiable compounds, in addition to alcohols, contained unsaponifiables with unchanged Rf values on thin-layer chromatography (TLC). Fractions of unsaponifiables were chromatographed on silica gel, and then the isolated fractions were additionally chromatographed on silica gel with silver nitrate. The isolated compounds were identified by nuclear magnetic resonance (NMR) spectroscopy. In the acidic component of esters, the main components are linoleic and linolenic acids. Hydrocarbons are represented by sesquiterpenes in both collections of needles. A new aromatic hydrocarbon for coniferous plants, geranyl-p-cymene, has been identified. For the first time, polyprenols were isolated from Siberian larch greens, the structure of which differs from spruce and pine polyprenols by chain length according to NMR spectroscopy and mass spectrometry data. They contain from 14 to 20 isoprene links in the chain of molecules with predominance of prenol-17. The yield of polyprenols was 12.8–14.9 % of neutral substances of yellow and green needles, respectively. Tetracyclic triterpene alcohols and sterols were isolated from green needles. Triterpene alcohols were not found in yellow needles. For citation: Mikson D.S., Roshchin V.I. Hydrocarbons and Ethers of Extractive Substances of Siberian Larch Needles. Lesnoy Zhurnal [Russian Forestry Journal], 2021, no. 3, pp. 170–185. DOI: 10.37482/0536-1036-2021-3-170-185

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Kishchenko, Ivan Tarasovich. "Siberian larch at the western edge of its area." Principles of the Ecology 14, no. 2 (2015): 55–65. http://dx.doi.org/10.15393/j1.art.2015.4142.

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38

Mudarisova, R. Kh, and L. A. Badykova. "Interaction of Siberian larch arabinogalactan with amino-containing compounds." Polymer Science Series A 54, no. 2 (2012): 106–12. http://dx.doi.org/10.1134/s0965545x12020083.

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Lebedeva, O. I., L. P. Rubchevskaya, and S. M. Repyakh. "Waxy substances from the needles of the Siberian larch." Chemistry of Natural Compounds 27, no. 3 (1991): 367–68. http://dx.doi.org/10.1007/bf00630330.

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40

Ignatova, E. V., and L. P. Rubchevskaya. "Lipids of the woody verdure of the Siberian larch." Chemistry of Natural Compounds 28, no. 5 (1992): 502–3. http://dx.doi.org/10.1007/bf00630664.

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41

Loranty, Michael, Sergey Davydov, Heather Kropp, et al. "Vegetation Indices Do Not Capture Forest Cover Variation in Upland Siberian Larch Forests." Remote Sensing 10, no. 11 (2018): 1686. http://dx.doi.org/10.3390/rs10111686.

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Boreal forests are changing in response to climate, with potentially important feedbacks to regional and global climate through altered carbon cycle and albedo dynamics. These feedback processes will be affected by vegetation changes, and feedback strengths will largely rely on the spatial extent and timing of vegetation change. Satellite remote sensing is widely used to monitor vegetation dynamics, and vegetation indices (VIs) are frequently used to characterize spatial and temporal trends in vegetation productivity. In this study we combine field observations of larch forest cover across a 25 km2 upland landscape in northeastern Siberia with high-resolution satellite observations to determine how the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI) are related to forest cover. Across 46 forest stands ranging from 0% to 90% larch canopy cover, we find either no change, or declines in NDVI and EVI derived from PlanetScope CubeSat and Landsat data with increasing forest cover. In conjunction with field observations of NDVI, these results indicate that understory vegetation likely exerts a strong influence on vegetation indices in these ecosystems. This suggests that positive decadal trends in NDVI in Siberian larch forests may correspond primarily to increases in understory productivity, or even to declines in forest cover. Consequently, positive NDVI trends may be associated with declines in terrestrial carbon storage and increases in albedo, rather than increases in carbon storage and decreases in albedo that are commonly assumed. Moreover, it is also likely that important ecological changes such as large changes in forest density or variable forest regrowth after fire are not captured by long-term NDVI trends.

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42

Runova, Elena, Irina Chelysheva, Nikolay Plotnikov, Ivan Garus, and Igor' Gavrilin. "FEATURES OF WOOD FORMATION IN MIXED SCOTS PINE (PINUS SYLVESTRIS L.) AND SIBERIAN LARCH (LARIX SIBIRICA LEDEB.) PLANTATIONS." Forestry Engineering Journal 9, no. 4 (2020): 50–61. http://dx.doi.org/10.34220/issn.2222-7962/2019.4/6.

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The features of physical and mechanical properties of trees (Pinus sylvestris L. and Larix sibirica Ledeb.) are investigated in experimental mixed forest plantations created by sowing in the Irkutsk region. Saw cuts were taken in the butt part of model trees to determine the properties of wood. The studies were carried out according to generally accepted methods on certified equipment. According to the research it has been found that the average width of the annual layers of pine and larch is 3.54 mm and 2.93 mm, respectively. The average number of annual layers in one centimeter is from 3.42 to 3.61 mm, which is 3.24 and 3.73 times less than the average statistical data for these tree species. It allows us to conclude: the width of the annual layer is significantly greater in the first 20 years of forest plant life than in mature state. Strength indicators of the studied samples of pine and larch are lower by 12-30 % than standard ones. During mechanical tests, wood defects were found in the butt part of the larch, which led to the destruction of the specimens. These defects were dormant bud marks and bulging butt, which form at a fairly early age. Conditional density of pine and larch was determined using the Resistograph 4450 instrument for an additional qualitative assessment of wood. As a result of the studies, it can be concluded that strength characteristics of pine and larch in mixed plantations are quite high.

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Miyahara, Mie, Chisato Takenaka, Rie Tomioka, and Takeshi Ohta. "Root responses of Siberian larch to different soil water conditions." Hydrological Research Letters 5 (2011): 93–97. http://dx.doi.org/10.3178/hrl.5.93.

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Belorussova, A. S., and I. N. Tret’yakova. "Patterns of somatic embryo formation in Siberian larch: Embryological aspects." Russian Journal of Developmental Biology 39, no. 2 (2008): 83–91. http://dx.doi.org/10.1134/s1062360408020045.

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45

Shvetsov, E. G., and E. I. Ponomarev. "Postfire Effects in Siberian Larch Stands on Multispectral Satellite Data." Contemporary Problems of Ecology 13, no. 1 (2020): 104–12. http://dx.doi.org/10.1134/s1995425520010096.

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46

Tret’yakova, I. N., A. C. Ivanitskaya, A. N. Ivanova, and A. V. Barsukova. "Phytohormone content in microstrobiles and androgenic callus of Siberian larch." Russian Journal of Plant Physiology 56, no. 5 (2009): 647–53. http://dx.doi.org/10.1134/s1021443709050100.

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47

Xue, Bao-Lin, Hikaru Komatsu, Tomo'omi Kumagai, Ayumi Kotani, Kyoichi Otsuki, and Takeshi Ohta. "Interannual variation of evapotranspiration in an eastern Siberian larch forest." Hydrological Processes 26, no. 15 (2012): 2360–68. http://dx.doi.org/10.1002/hyp.9195.

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48

Neverova, N. A., L. A. Belovezhets, E. N. Medvedeva, and V. A. Babkin. "Metabolism of arabinogalactan from siberian larch by Saccharomyces cerevisiae yeast." Russian Journal of Bioorganic Chemistry 37, no. 7 (2011): 834–39. http://dx.doi.org/10.1134/s106816201107017x.

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49

Mavromatis, Vasileios, Anatoly S. Prokushkin, Oleg S. Pokrovsky, Jérôme Viers, and Mikhail A. Korets. "Magnesium isotopes in permafrost-dominated Central Siberian larch forest watersheds." Geochimica et Cosmochimica Acta 147 (December 2014): 76–89. http://dx.doi.org/10.1016/j.gca.2014.10.009.

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50

Nikolay A, Neverov, Belyaev Vladimir V, Chistova Zinaida B, et al. "Effects of geo-ecological conditions on larch wood variations in the North European part of Russia (Arkhangelsk region)." Journal of Forest Science 63, No. 4 (2017): 192–97. http://dx.doi.org/10.17221/102/2015-jfs.

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The present study examines the macrostructure and density of larch wood and possible influences on the productivity of larch stands. The studies were conducted in the middle and sub-tundra taiga in the Arkhangelsk region. The selected trees were of the same age and diameter at breast height. In all sample plots the average annual ring width varied from 0.68 to 0.93 mm, the average content of latewood was about 29.7–35.1% and the average wood density of these old Siberian larch trees was 572 (500–698) kg·m<sup>–3</sup>. There were no significant differences between sample plots in terms of the latewood content, density and annual ring width of the growth rings. Wood macrostructure of larch wood has the same values in forests growing in the sub-tundra and middle taiga. A possible explanation for this is the location of these stands in the karst landscape, which possesses abundant mineral nutrition. Geological factors are surpassing the influence of climatic factors and contribute to the formation of productive larch stands in the sub-tundra taiga in the European part of Russia.

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