The Influence of Selective Cutting on the Wood Quality Indicators of Understory Spruce

Complete text of the article:

Download article (pdf, 0.5MB )

UDС

630*221.02

DOI:

10.17238/issn0536-1036.2016.6.56

Abstract

The efficiency of forest management activities is estimated by quantitative indicators, name-ly by the increase of the current growing stock increment. This method does not allow us to estimate them objectively. The current economic situation requires the information of the productivity indicators and a qualitative evaluation of the forming wood that can determine the value of produced timber. The quality of wood raw material is characterized by a num-ber of indicators: branchiness, macro and microstructure of wood, its density, chemical composition, etc. We have carried out a qualitative assessment of the forming spruce wood in 8 experimental production sites (“Norobovo” station, Vologda region). Selective cutting affect the quality of the forming wood of understory spruce. After the first felling, especially with a higher intensity, the branch diameters and an average width of an annual ring in-crease. In the first 2–3 years after the logging activities the latewood maintenance in the annual layer is reduced. The wood of understory spruce meets the requirements of the state industry standards upon all quality indicators. After the selective cutting the spruce and spruce and deciduous high quality forest stands are formed from understory spruce.

Authors

N.A. Druzhinin, Doctor of Agricultural Sciences, Professor F.N. Druzhinin, Doctor of Agricultural Sciences, Associate Professor S.E. Gribov, Candidate of Agricultural Sciences, Associate Professor

Affiliation

Vologda State Dairy Farming Academy by N.V. Vereshchagin, Pankratova ul., 9a, bl. 7, Molochnoye, Vologda, 160555, Russian Federation; e-mail: drujinin@mail.ru, griboff.s.e@mail.ru

Keywords

selective cutting, even gradual cutting, two-pass cutting system, restocking felling, branchiness, percentage of latewood, wood density

For citation

Druzhinin N.A., Druzhinin F.N., Gribov S.E. The Influence of Selective Cutting on the Wood Quality Indicators of Understory Spruce. Lesnoy zhurnal (Forestry journal), 2016, no. 6, pp. 56–64. DOI: 10.17238/issn0536-1036.2016.6.56

References

1. GOST 2140–81. Poroki drevesiny. Klassifikatsiya, terminy i opredeleniya, sposoby izmereniya [State Standard 2140–81. Defects in Timber. Classification, Terms and Defini-tions, Measurement Methods]. Moscow, 1981. 111 p.
2. GOST 9463–88. Lesomaterialy kruglye khvoynykh porod. Tekhnicheskie usloviya [State Standard 9463–88. Round Timber of Coniferous Species. Technic Specifications]. Moscow, 1988. 13 p.
3. Gribov S.E. Vliyanie prirodnykh i antropogennykh faktorov na kachestvo drevesiny khvoynykh porod v kul'turakh sredney i yuzhnoy taygi (na primere Vologodskoy oblasti): avtoref. dis. … kand. s.-kh. nauk [The Influence of Natural and Anthropogenic Factors on the Quality of Softwood in the Cultures of the Middle and Southern Taiga (the Case of the Volog-da Region): Cand. Agric. Sci. Diss. Abs.]. Vologda-Molochnoye, 2007. 20 p.
4. Davydov A.V. Vliyanie somknutosti nasazhdeniya i rubok ukhoda za lesom na suchkovatost' i formu stvolov [The Effect of the Stand Canopy Density and Thinning on the Branchiness and the Stems Form]. Rubki ukhoda za lesom [Intermediate Cutting]. Lenin-grad, 1940, pp. 5–49.
5. Druzhinin N.A., Druzhinin F.N. Klassifikatsiya i osobennosti sploshnykh i vy-borochnykh form rubok [Classification and Peculiarities of Clear and Selective Cuttings]. Lesnoy zhurnal, 2013, no. 5, pp. 59–63.
6. Zviedris A.I. Vyborochnye rubki i ikh vliyanie na formu stvola derev'ev v el'ni-kakh Latviyskoy SSR [Selective Cutting and Their Influence on the Trees Stem Form in Spruce Forests of the Latvian SSR]. Trudy Instituta lesokhozyaystvennykh problem [Pro-ceedings of the Institute of Forestry Problems], 1956, vol. 11, pp. 41–58.
7. Kramer P., Kozlovskiy T. Fiziologiya drevesnykh rasteniy [Physiology of Woody Plants]. Moscow, 1963. 627 p.
8. Melekhov V.I., Babich N.A., Korchagov S.A. Kachestvo drevesiny sosny v kul'tu-rakh [The Quality of Pine Wood in Cultures]. Arkhangelsk, 2003. 109 p.
9. Poluboyarinov O.I. Plotnost' drevesiny [Wood Density]. Moscow, 1976. 160 p.
Received on January 14, 2016