Aboveground Phytomass of Lodgepole Pine and Scots pine in Experimental Plantations of the Komi Republic

The article is devoted to comparison the phytomass of two tree species: lodgepole pine (Pinus contorta Dougl.), native to North America, and local Scots pine (Pinus sylvestris L.) in experimental plantations of the Syktyvkar, Koygorodsky, Kortkerossky and Ukhta areas of the Komi Republic, established in 2004–2006 on 4 sites of different forest categories. The studies were conducted from 2021 to 2023. Calculations of phytomass reserves were carried out using model trees for allometric equations. The weight of one tree in an absolutely dry state varies for Scots pine from 14 to 22 kg, for lodgepole pine – from 23 to 38 kg per tree. By the age of 20 years, the aboveground phytomass of lodgepole pine trees accumulates from 46 to 76 t/ha, and that of Scots pine from 30 to 44 t/ha of organic matter. It is shown that by trunk mass in experimental plantations planted on pine clearings and agricultural lands, lodgepole pine maximally exceeds Scots pine compared to other areas (reclaimed quarries). In general, the results of the study showed that the excess of aboveground phytomass of lodgepole pine plantations, compared to Scots pine, is from 25 to 45% in different areas. The structure of aboveground phytomass of the species studied has a similar pattern. The results obtained can be used to replenish the database on the productivity of forest crops and to assess carbon deposition by forest plantations in the middle taiga.

1. Babich N.A., Klevtsov D.N., Evdokimov I.V. Zonal patterns of changes in the phytomass of pine plantations. Arkhangelsk: Northern (Arctic) Federal University, 2010. 140 p. (In Russ.)

2. Babich N.A., Merzlenko N.A. Biological productivity of forest plantations. Arkhangelsk: Publishing house of AGTU, 1998. 89 p. (In Russ.)

3. Elfving B., Ulvcrona K.A., Egnell G. Biomass equations for lodgepole pine in northern Sweden. Can. J. For. Res., 2016, vol. 47, pp. 89–96. DOI: 10.1139/cjfr-20160131.

4. Fedorkov A.L., Gutiy L.N. The state of experimental cultures of lodgepole pine in the Komi Republic. Bulletin of the Komi Scientific Research Center of the Ural Branch of the Russian Academy of Sciences, 2017, no. 2, pp. 25-31. (In Russ.)

5. Fedorkov A. Gutiy L. Performance of lodgepole pine and Scots pine in field trials located in north-west Russia. Silva Fennica, 2017, vol. 51, no. 1, art. no. 1692. DOI: 10.14214/af.1692.

6. Feklistov P.A., Biryukov S.Yu., Fedyaev A.L. Comparative ecological and biological features of lodgepole and common pine in the northern subzone of the European taiga. Arkhangelsk: Arkhangelsk State Technical University, 2008. 118 p. (In Russ.)

7. Manner J., Lundström H. The effect of forked trees on harvester time consumption in a Pinus contorta final-felling stand. Silva Fennica, 2024, vol. 58, no. 4, art. no. 24039. DOI: 10.14214/sf.24039.

8. Manning G.N., Massie M.R.C., Rudd J. Metric single-tree weight tables for the Yukon Territory. Canadian Forestry Service, Pacific Forest Research Centre, Victoria, B.C., Inf. Rep. BC-X-250, 1984. 170 p.

9. Marklund L.-G. Biomass functions for Scots pine, Norway spruce and birch in Sweden. Swedish University of Agricultural Sciences, Inst. för skogstaxering, 1988. 71 p.

10. Mola-Yudego B., Arevalo J., Díaz-Yanez O., Dimitriou I. Haapala A., Carlos Ferras Filho A., Selkimaki M., Valbuena R. Wood biomass potentials for energy in northern Europe: Forest or plantations? Biomass and Bioenergy, 2017, no. 106, pp. 95–103. DOI: 10.1016/j.biombioe.2017.08.021.

11. Pristova T.A., Fedorkov A.L., Novakovsky A.B. Aboveground phytomass of a stand in experimental plantations of lodgepole pine in Syktyvkar forestry of the Komi Republic. Forest Journal, 2023, no. 6, pp. 31-43. (In Russ.)

12. R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL: http://www.Rproject.org (accessed: 14.08.2024)

13. Rayevsky B.V. Breeding and seed production of Scots pine (Pinus sylvestris L.) and lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm) in the North-West of the taiga zone of Russia. Diss. ... Doc. Agr. Sci. St. Petersburg: St. Petersburg State Forest Technical University, 2015. 322 p. (In Russ.)

14. Repola J. Biomass Equations for Scots pine and Norway spruce in Finland. Silva Fennica, 2009, vol. 42, no. 4, pp. 605–624. DOI: 10.14214/sf.184.

15. Repola J., Ulvcrona K.A. Modelling biomass of young and dense Scots pine (Pinus sylvestris L.) dominated mixed forests in northern Sweden. Silva Fennica, 2014, vol. 48, no. 5, art. no. 1190. DOI: 10.14214/sf.1190.

16. Schepaschenko D., Moltchanova E., Shvidenko A., Blyshchyk V., Dmitriev E., Martynenko O., See L., Kraxner F. Improved estimates of biomass expansion factors for Russian forests. Forests, 2018, vol. 9, iss. 6, art. no. 312. DOI: 10.3390/f.9060312.

17. Tumenbayeva A.R., Sarsekova D.N., Małek S. Carbon sequestration of aboveground biomass of Pinus sylvestris L. in the green belt of the city of Astana. Folia Forestalia Polonica, Series A – Forestry, 2018, vol. 60 (3), pp. 137–142. DOI: 10.2478/ffp-2018-0013.

18. Usoltsev V.A. Growth and structure of phytomass of forest stands. Novosibirsk: Nauka, 1988. 253 p. (In Russ.)

19. Usoltsev V.A. Biological productivity of forests of Northern Eurasia. Methods, database and its applications. Ekaterinburg: Ural Branch of the Russian Academy of Sciences, 2007. 636 p. (In Russ.)

20. Usoltsev V.A. Phytomass of model trees for remote and ground-based forest taxation in Eurasia: electronic database. Ekaterinburg: Bot. garden of the Ural Branch of the Russian Academy of Sciences. 2023. URL: https://elar.usfeu.ru/handle/123456789/12451 (accessed: 17.09.2024) (In Russ.)

21. Usoltsev V.A., Zalesov S.V. Methods for determining biological productivity of plantings. Yekaterinburg: Ural State Forestry Engineering university, 2005. 147 p. (In Russ.)

22. Utkin A.I., Zamolodchikov D.G., Gulbe T.A., Gulbe Ya.I. Allometric equations for phytomass based on data from pine, spruce, birch and aspen trees in the European part of Russia. Forest science, 1996, no. 6, pp. 36-46. (In Russ.)

23. Zamolodchikov D.G., Utkin A.I., Chestnych O.V. Biomass conversion and expansion factors for major forest forming species in Russia. Forest Mensurat. for. Invent, 2003, no. 1, pp. 119–127.