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Ya.A. Neronova Complete text of the article:Download article (pdf, 0.7MB )UDС630*811.15:582.475:630*237.4DOI:10.37482/0536-1036-20204-68-76AbstractTo secure a steady operation of large wood processing enterprises in north-west of the Taiga zone, accelerated coniferous forest cultivation appears to be the most promising. Treatments with mineral fertilizers and herbicides create optimal conditions for stand growth and thus result in wood increment. Trunk wood qualities and, hence, the output of the most valuable trunk sections are contingent on the volume and anatomical structure of radial increment. This paper shows the effect of fertilization and herbicide treatments on the anatomical structure of wood in pine plantations of different stocking rates in drained peat soils. Variations of late wood share and density are directly associated with the changes in anatomical structure of wood. Fertilization of pine plantations with density of 4000 and 2000 trees/ha increased the number of early tracheid rows in the process of their growth. The application of fertilizers and herbicides in pine plantations stocked at 1000 trees/ha induced a gradual reduction in the number of early tracheid rows. A combined mineral fertilizer plus herbicide treatment enlarged the number of late tracheid rows in wood of the plantations stocked at various rates. The total number of tracheid rows per annual ring increased in the plantations stocked at a rate of 4000 and 2000 trees/ha. The reduction in total number of tracheid rows of plantations with 1000 trees/ha stocking rate is down to mineral fertilization combined with herbicide treatments. Fertilizer and herbicide treatment of the plantations with the initial density of 4000 trees/ha leads to the formation of thick-walled early and late tracheids. Application of fertilizers in pine plantations with 1000 and 2000 trees/ha stocking rates promote the formation of early and late tracheids of a larger diameter. Tracheids of a smaller diameter were formed in the plantations stocked at 4000 trees/ha. The overall impact of fertilizers and herbicides caused an increase of late tracheid size in the plantations with different stocking rates. Comparing the obtained data with the regulatory requirements of GOST 968–68 and the Laboratory of Raw Materials of the All-Union Scientific Research Institute of Pulp and Paper Industry, we have found that cultivation of pine plantations with various stocking rates on dried peat soils using fertilizers and herbicides can be aimed at producing pulpwood (1st and 2nd categories) and high-quality sawlogs.AuthorsYa.A. Neronova, Candidate of Agriculture, Assoc. Prof.;ORCID: https://orcid.org/0000-0003-3703-0898 AffiliationForest Research Institute of the Karelian Research Centre of the Russian Academy of Sciences, ul. Pushkinskaya, 11, Petrozavodsk, Republic of Karelia, 185910, Russian Federation; е-mail: neronovaya@mail.ruKeywordspine plantations, wood microstructure, fertilizers, herbicides, number of tracheid rows, tracheid wall thickness, tracheid lumen diameterFor citationNeronova Ya.A. Wood Microstructure of Pine Plantations with Different Initial Stocking Rate on Drained Peat Soil upon Fertilization and Herbicide Treatments. Lesnoy Zhurnal [Russian Forestry Journal], 2020, no. 4, pp. 68–76. DOI: 10.37482/0536-1036-20204-68-76References1. Abaeva K.T., Serikbaeva А.Т. Methods for Optimizing the Stocking Rate of Pine Plantations. Molodoy uchenyy [Young Scientist], 2014, no. 2, pp. 394–397.2. Anuchin N.P. Forest Inventory. Moscow, Lesnaya promyshlennost’ Publ., 1982. 552 p. 3. Babikov B.V. 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DOI: 10.1093/forestry/cpu004 18. Mäkinen H., Hynynen J., Penttilä T. Effect of Thinning on Wood Density and Tracheid Properties of Scots Pine on Drained Peatland Stands. Forestry, 2015, vol. 88, iss. 3, pp. 359–367. DOI: 10.1093/forestry/cpv006 19. Neippola J. Long-Term Vegetation Changes in Stands of Pinus sylvestris in Southern Finland. Journal of Vegetation Science, 1992, vol. 3, iss. 4, pp. 475–484. DOI: 10.2307/3235804 20. Saarsalmi A., Tamminen P., Kukkola M. Effects of Long-Term Fertilisation on Soil Properties in Scots Pine and Norway Spruce Stands. Silva Fennica, 2014, vol. 48, no. 1, art. 989. DOI: 10.14214/sf.989 21. Zeide B. Optimal Stand Density: A Solution. Canadian Journal of Forest Research, 2004, vol. 34, no. 4, pp. 846–854. DOI: 10.1139/x03-258 Received on March 4, 2019 Wood Microstructure of Pine Plantations with Different Initial Stocking Rate on Drained Peat Soil upon Fertilization and Herbicide Treatments |
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