Growth and State of Pine Cropper with Different Density in Serebryanoborskoe Experienced Forestry

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Abstract

The growth of experimental artificial stands of Scotch pine (Pinus sylvestris L.) with different planting density, created in 1948, has been investigated.  Primary planting density on the 5 experimental ground was 2; 4; 8; 16 and 32 thousand seedlings per ha. They were researched at the cultures age of 22; 30 and 65 years. The essential differences in the nature of age changes of the productivity and structure of forest stands has been identified. At the age of 22 to 30 years, on the period of polewood phase, cultures with planting density of 2.0  thousand trees per ha improved the middle class of the growth by Kraft, whereas in other areas it was lowering, with the most strong was in extremely dense plantation (32.0 thousand trees per ha). To the age of 65 years, the representation of the different classes of trees significantly evened out, the greatest supply of stem wood was in cultures with planting density of two thousand trees per ha, while the lowest – 32.0 thousand trees per ha. To increasing of planting density decreased preservation of trees up to 2.6 % for planting density of 32.0 thousand trees per ha, whereas in the sparsest on planting density cultures it was 50.8 %. Thus the creation of pine plantations with high planting density (more than 10.0 thousand trees per ha) would be inappropriate.

Authors

M.D. Merzlenko, Doctor of Agriculture, Professor, Senior Research Scientist, Yu. B. Glazunov, Candidate of Agriculture, Researcher, Research Officer

Affiliation

Institute of Forest Science, Russian Academy of Sciences | Sovetskaya, 21, Uspenskoe, Moscow Region, 143030, Russia; е-mail: root@ilan.ras.ru

Keywords

artificial stands, Scotch pine, planting density.

References

1. Vakurov A.D. Opyt ryadovykh i gnezdovykh posadok sosny raznoy gustoty [The Experience of Line and Bunch Pine Planting of Various Density]. Lesnoe khozyaystvo, 1963, no. 12, pp. 66–67. 2. Vakurov A.D. Rubki ukhoda v kul'turakh raznoy gustoty [Cleaning Cutting in Cropper of Various Density]. Lesnoe khozyaystvo, 1967, no. 2, pp. 24–25. 3. Vakurov A.D. Rost sosny v kul'turakh raznoy gustoty v Serebryanoborskom opytnom lesnichestve [Pine Growth in Cropper of Various Density in Serebryanoborskoe Forestry]. Slozhnye bory khvoyno-shirokolistvennykh lesov i puti vedeniya lesnogo khozyaystva v lesoparkovykh usloviyakh Podmoskov'ya [Complicated Coniferous Large-Leaved Forests and Forest Management in Amenity Forests of the Moscow Region]. Moscow, 1968, pp. 196–208.4. Vakurov A.D. Tridtsatiletniy opyt vyrashchivaniya sosnovykh kul'tur raznoy gustoty pod Moskvoy [Thirty-Years Experience of Pine Planting of Various Density under Moscow]. Lesovedenie, 1979, no. 6, pp. 81–85. 5. Vakurov A.D., Utkina A.G. Osnovnye rezul'taty lesovodstvennykh issledovaniy [Fundamental Results of Forestry Researches]. Priroda Serebryanoborskogo lesnichestva v biogeotsenoticheskom osveshchenii [Nature of the Serebryanoborskoe Forestry in Biogeocenosis Elucidation]. Moscow, 1974, pp. 355-367. 6. Kryudener A.A. Osnovy klassifikatsii tipov nasazhdeniy [Classification Basis of Planting Types]. Petrograd, 1917. 318 p. 7. Pinchuk A.M. Vliyanie razlichnoy gustoty posadki na rost sosny obyknovennoy [The Influence of Planting with Various Density on Scotch Pine Growth: Collected Papers]. 1961, vol. 50, pp. 43–48. 8. Pinchuk A.M. Osobennosti rosta sosny v kul'turakh raznoy gustoty [The Features of Pine Growth in Cropper with Various Density ]. Lesnoe khozyaystvo, 1961, no. 1, pp. 63–64. 9. Pinchuk A.M. Vliyanie gustoty drevostoya na razvitie assimilyatsionnogo apparata sosny [The Influence of Forest Stand Density on Evolution of Assimilatory Pine Instrument]. Lesa Podmoskov'ya [Forests of Moscow Region]. Moscow, 1965, pp. 115-131. 10. Pinchuk A.M. Osveshchennost' v kul'turakh sosny razlichnoy gustoty [Illumination in Pine Cropper with Various Density]. Lesnoe khozyaystvo, 1965, no. 4, pp. 15–17. 11. Pinchuk A.M. K fiziologicheskomu obosnovaniyu gustoty kul'tur sosny. avtoref. diss…. kand. s.-kh. nauk. [To Physiological Substantiation of Pine Cropper Density: Cand. Tech. Sci. Diss. Abs.]. Moscow, 1967. 19 p. 12. Pinchuk A.M., Lomov V.D. Vliyanie gustoty sosnovykh molodnyakov na anatomicheskie pokazateli drevesiny i nakoplenie organicheskoy massy [The influence of Pine Growing Stock Density on Anatomical Wood Indexes and Magnification of Organic Mass: Collected Papers]. 1973, vol. 49, pp. 38-42.