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A.A. Gorbunov, S.V. Tretjakov Complete text of the article:Download article (pdf, 0.4MB )UDС630*5DOI:10.17238/issn0536-1036.2015.1.152AbstractDynamics of trees mortality in mixed modal aspen mid-taiga forests of the Arkhangelsk region was studied on materials of scientific permanent plots. Studies have confirmed that the mortality is observed in all gradations of thickness. Regardless of age the mortality is predominantly in small-diameter parts of forest stands, individual trees of different thickness die most often in the result of damage by fungi or from natural disasters. The amount of trees per unit area begins to decrease since the crown linkage, when begins to increase trees competition among themselves for light and space. From a certain age, according to our data after 30 years - intensive mortality of thin aspen trees is terminated. Long-term observations on permanent plots indicate a certain regularity in the amount of trees. According to all regularities of stands growth the amount of trees varies evenly and is expressed by hyperbolic curve. In nature this process is uneven and depends on many factors: competition for power and light, natural phenomena, pathological changes and disease. Natural trees mortality of different species is various. Using data from permanent sample plots, laid in mixed stands dominated by aspen, mathematical models of change in the amount of trees with age in aspen, pine, spruce and birch species have been received. Reducing the amount of trees is going intensively to 30 years. Similar data was received by N. Chuprov for birch. Intensive mortality in birch stands starts from 10 years and begin to reduce considerably with age of 30 years. After 50 years mortality in mixed aspen forests is for aspen: 5-7 trees, birches: 3-4 trees per year, for pine and spruce: 1-2 trees per year. V.I. Levin and V.I. Kalinin studying dynamics of pine stands of middle taiga found that you can mark the trees that will be dying in 10 to 15 years and to choose them, increasing forest productivity actually using this part of stands. On the use of mortality are based intensive models of forest management and forest use in the Scandinavian countries, where at the expense of timely thinning get up to 35 % of merchantable timber per unit area in the process of forest regeneration.AuthorsA.A. Gorbunov, Postgraduate Student S.V. Tretjakov, Doctor of Agriculture, Associate ProfessorAffiliationNorthern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russia; е-mail: gorbunov@titans.suKeywordsnatural mortality, dynamics, thinning, modal aspen forests, modelling.References1. Voynov G.S. Dinamika osinovykh i osinovo-elovykh nasazhdeniy v sredney podzone taygi [Dynamics of Aspen and Aspen Spruce Stands in the Middle Taiga Subzone]. Ekologiya taezhnykh lesov [Ecology of Taiga Forests]. Arkhangelsk, 1978, pp. 75-84. 2. Davidov M.V. Khod rosta somknutykh berezovykh nasazhdeniy [Growth of Dense Birch Stands]. Lesnoe khozyaystvo ,1952, no. 4, pp. 48–51. 3. Levin V.I., Kalinin V.I. Opyt statsionarnogo izucheniya produktivnosti i dinamiki spelykh sosnyakov-zelenomoshnikov Severa [Experience of Stationary Study of Productivity and Dynamics of the North Mature Pine Stands]. Arkhangelsk, 1972. 49 p. 4. Levin V.I. Rezul'taty issledovaniya dinamiki sosnovykh nasazhdeniy Ar-khangel'skoy oblasti [Results of the Research of Pine Stands Dynamics in the Arkhangelsk Region]. Arkhangelsk, 1959. 132 p. 5. Levin V.I. Sosnyaki Evropeyskogo severa [Pine Forests of the European North]. Moscow, 1966. 152 p. 6. Logvinov I.V., Kostryukov A.I. Issledovanie prirosta i estestvennogo otpada nasazhdeniy Lisinskogo uchebno-opytnogo leskhoza [Study of Stands Growth and Natural Mortality in Lisinsky Educational-Experimental Forestry]. Lesnaya taksatsiya i lesoustroystvo: mezhvuz. sb. nauch. tr. [Forest Valuation and Forest Management: Collected Papers]. Krasnoyarsk, 1978, pp. 86–94. 7. Nevolin O.A., Eremina O.O. Rezul'taty 35 – letnikh issledovaniy dinamiki vysokoproduktivnykh sosnovo-berezovykh nasazhdeniy Emtsovskogo uchebno-opytnogo leskhoza [Results of 35 - Year Studies of the Highly Productive Pine-Birch Stands Dynamics in Emtsovsky Educational-Experimental Forestry]. Problemy lesovyrashchivaniya na Evropeyskom Severe: sb. nauch. tr. [Problems of Forest Growing in the European North: Collected Papers]. Arkhangelsk, 1999, pp. 66–70. 8. Nevolin O.A., Tret'yakov S.V., Eremina O.O. Dinamika sosnovo-berezovogo nasazhdeniya pri protochnom uvlazhnenii pochvy v tipe lesa sosnyak – kislichnik [Dynamics of Pine-and-Birch Stand under Flowing Moistening of Soil in the Pinetum betuleto-oxalidosum Forest Type]. Lesnoy zhurnal, 2001, no. 3, pp. 35–41. 9. Ogorodov N.V. Rost somknutykh berezovykh nasazhdeniy na severo-vostoke Evropeyskoy chasti SSSR [Growth of Dense Birch Stands in the North-East of the European Part of the USSR]. Lesnoe khozyaystvo, 1951, no. 10, pp. 31–34. 10. Sokolov N.N., Bakhtin A.A. Poluvekovoy opyt izucheniya dinamiki sosnyakov chernichnykh Evropeyskogo Severa [Half a Century Experience of Studying the Dynamics of Bilberry Pine Forests of the European North]. Arkhangelsk, 2001. 68 p. 11. Tret'yakov S.V, Yaroslavtsev S.V. Otpad sosny i eli v smeshannykh drevostoyakh Emtsovskogo uchebno-opytnogo leskhoza AGTU [The Pine and Spruce Mortality in Mixed Stands of Emtsovsky Educational-Experimental Forestry ASTU]. Lesnye statsionarnye issledovaniya: Metody, rezul'taty. Perspektivy: Materialy soveshchaniya [Forestry Stationary Research: Methods, Results. Perspectives: Proc. Conf.]. Tula, 2001, pp. 459–462. 12. Chuprov N.P. Bereznyaki Evropeyskogo Severa Rossii [The Birch Forests of the European North of Russia]. Arkhangelsk, 2008. 386 p.Trees Mortality Dynamics in Mid-Taiga Mixed Aspen Stands in the Arkhangelsk Region |
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