Light Regime Under the Canopy of a Birch-Blueberry Forest. P. 175–182

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630*181.351

DOI:

https://doi.org/10.37482/0536-1036-2026-3-175-182

Abstract

The research was carried out on Bolshoy Solovetsky Island in the White Sea. Illumination was studied in a birch-blueberry forest with a fairly large allotment area. The forest is typical for the island. Stand composition: 7B3S; with equal average heights for birch and spruce. The canopy consists mainly of birch with occasional spruce; it is moderately dense and has the V quality class, which is typical for the Bolshoy Solovetsky Island. We selected 20 reference birch trees and 20 spruce trees to analyze the light conditions under the forest canopy. The light intensity was measured under their crowns using a TKA-Lux luxmeter, with 5–10 repetitions in different parts of the sub-crown space. The measurements were taken on August 12 and 14 from 10 a.m. to 1 p.m. on days with varying weather conditions (cloud cover), both clear and cloudy, as well as in different directions, from the north and from the south. Illumination in an open area near the studied birch-blueberry forest was 66,000 lux on a clear, sunny day and 22,000 lux on a cloudy day. Illumination under the forest canopy through the breaks in the trees was found to be half that of an open area on a clear day, and one-third on a cloudy day. On clear days, the average illumination under the canopy of birch trees was 10,500 lux, and under spruce trees, 4,300 lux; on cloudy days, these figures were 4,000 and 1,500 lux, respectively. On clear days, the differences between the north and south sides are significant and statistically significant, both under birch canopies and under spruce canopies. On cloudy days, these differences are minimized and unreliable. Overall, spruce blocks light twice as effectively as birch.

Acknowledgements: The research was carried out within the framework of the state assign- ment of the N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences (State registration No. 124103100030-1).

Authors

Aleksandr N. Sobolev¹, Candidate of Agriculture, Senior Research Scientist; ResearcherID AAS-3366-2020, ORCID: https://orcid.org/0000-0002-7961-8318
Pavel A. Feklistov^2*, Doctor of Agriculture, Prof.; ResearcherID: AAC-2377-2020, ORCID: https://orcid.org/0000-0001-8226-893X
Vladimir I. Melekhov³, Doctor of Engineering, Prof.; ResearcherID: Q-1051-2019, ORCID: https://orcid.org/0000-0002-2583-3012
Ivan N. Bolotov², Doctor of Biology, Corresponding Member of RAS; ResearcherID: P-2892-2015, ORCID: https://orcid.org/0000-0002-3878-4192
Oksana S. Barzut³, Candidate of Agriculture, Assoc. Prof.; ResearcherID: AFN-5294-2022, ORCID: https://orcid.org/0000-0002-0338-9715

Affiliation

¹Solovetsky State Historical, Architectural and Natural Museum-Reserve, pos. Solovetsky, Primorskiy District, Arkhangelsk Region, Russia, 164070; alex-sobol@mail.ru
²N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Naberezhnaya Severnoy Dviny, 109, Arkhangelsk, Russia, 163000; pfeklistov@yandex.ru*, dirnauka@fciarctic.ru
³Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, Russia, 163002; v.melekhov@narfu.ru, o.barzut@narfu.ru

Keywords

illumination, forest stand light regime, forest canopy, light conditions beneath the forest canopy, tree species composition, birch-blueberry forest, birch, spruce, Bolshoy Solovetsky Island

For citation

Sobolev A.N., Feklistov P.A., Melekhov V.I., Bolotov I.N., Barzut O.S. Light Regime Under the Canopy of a Birch-Blueberry Forest. Lesnoy Zhurnal = Russian Forestry Journal, 2026, no. 3, pp. 175–182. (In Russ.). https://doi.org/10.37482/0536-1036-2026-3-175-182

References

1. Alekseev V.A. Light Regime in a Forest. Leningrad, Nauka Publ., 1975. 227 p. (In Russ.).

2. Bratilova N.P., Luzganov A.G., Svalova A.I., Vlasov D.A. The Influence of Illumination on the Growth of Breeds of a Siberian Cedar Pine of Different Geographical Origin. Forest inventory and forest planning, 2013, no. 2(50), pp. 78–80. (In Russ.).

3. Walter G. Vegetation of the Globe. Ecological and Physiological Characteristics. Vol. 2. Forests of the Temperate Zone. Moscow, Progress Publ., 1974. 423 p. (In Russ.).

4. Veretennikov A.V. Plant Physiology with the Basics of Biochemistry. Voronezh, VGU Publ., 1987. 256 p. (In Russ.).

5. Zubkova E.V., Frolov P.V., Bykhovets S.S., Shanin V.N. The Comprehensive Study of Ground Cover of the Forest, Taking into Account the Factors of Soil Moisture and Light Under the Canopy. The Nature Reserves – 2019. Biological and Landscape Diversity, Conservation and Management. The abstracts of the 9th Pan-Russian Scientific-Practical Conference. 2019, pp. 231–234. (In Russ.).

6. Kramer P.D., Kozlovskiy T.T. Physiology of Woody Plants. Moscow, Lesnaya promyshlennost’ Publ., 1983. 464 p. (In Russ.).

7. Kuznetsov V.V., Dmitrieva G.A. Plant Physiology. Moscow, Vysshaya Skola, Abris Publ., 2011. 783 p. (In Russ.).

8. Lear Kh., Polster G., Fiedler G. Physiology of Woody Plants. Moscow, Lesnaya promyshlennost’ Publ., 1974. 423 p. (In Russ.).

9. Malinovskikh A.A. The Effect of Illumination Level Under Forest Canopy on Cowberry Yield Under the Conditions of the Sredne-Obskoy Pine Forest of the Altai Region. Bulletin of Altai State Agricultural University, 2016, no. 4(138), pp. 105–109. (In Russ.).

10. Malinovskikh A.A. The Effect of Illumination Level Under Forest Canopy on European Blueberry Yield Under the Conditions of the Sredne-Obskoy Pine Forest of the Altai Region. Bulletin of Altai State Agricultural University, 2017, no. 6(152), pp. 87–92. (In Russ.).

11. Melekhov I.S. Forest Science. Moscow, Lesnaya promyshlennost’ Publ., 1980. 408 p. (In Russ.).

12. Fundamentals of Forest Biogeocenology. Ed. by Academician V.N. Sukachev and Doctor of Biology N.V. Dylis. Moscow, Nauka Publ., 1964. 574 p. (In Russ.).

13. Panov A.N. Influence of Light Conditions Indifferent Forest Types on Pinus sibirica Seedling. Optika atmosfery i okeana = Atmospheric and Oceanic Optics, 2006, vol. 19, no. 11, pp. 973–975. (In Russ.).

14. Feklistov P.A., Sobolev A.N. Light Conditions in Stands of Different Species Composition on the Solovetsky Islands. Vestnik of Northern (Arctic) Federal University. Series “Humanitarian and Social Sciences”, 2013, no. 3, pp. 93–100. (In Russ.).

15. Hilmi G.F. Theoretical Biogeophysics of Forests. Moscow, AN SSSR Publ., 1957. 206 p. (In Russ.).

16. Shary P.A., Sharaya L.S., Sidyakina L.V., Saksonov S.V. Influence of Solar Energy and Tree Crown Closure on Species Richness of Herbage in the South of Forest-Steppe. Sibirskiy Ekologicheskiy Zhurnal = Contemporary Problems of Ecology, 2017, vol. 24, no. 5, pp. 539–552. (In Russ.). https://doi.org/10.15372/SEJ20170502

17. Yakovlev A.A., Vinogradova E.A., Anufriev M.V., Krylov I.A., Bragin V.D. Influence of the Light Under the Canopy on the Propagation Cover of the Living Ground Cover and the Number of Undergrowth. The Actual Issues in Forestry: International Youth Scientific-Practical Conference. Saint Petersburg, 2022, pp. 186–189. (In Russ.).

18. Bormann F.H., Likens G.E. Pattern and Processes in a Forested Ecosystem. New York, Springer, 1979. 253 p.

19. Gueymard C.A. REST2: High-Performance Solar Radiation Model for Cloudless-Sky Irradiance, Illuminance, and Photosynthetically Active Radiation – Validation with a Benchmark Dataset. Solar Energy, 2008, vol. 82, iss. 3, pp. 272–285. https://doi.org/10.1016/j.solener.2007.04.008

20. Jones H.G., Archer N., Rotenberg E., Casa R. Radiation Measurement for Plant Ecophysiology. Journal of Experimental Botany, 2003, vol. 54, iss. 384, pp. 879–889. https://doi.org/10.1093/jxb/erg116

21. Kobayashi H., Baldocchi D.D., Ryu Y., Chen Q., Ma S., Osuna J.L., Ustin S.L. Modeling Energy and Carbon Fluxes in a Heterogeneous Oak Woodland: A Three-Dimensional Approach. Agricultural and Forest Meteorology, 2012, vol. 152, pp. 83–100. https://doi.org/10.1016/j.agrformet.2011.09.008

22. Lee H., Slatton K.C., Roth B.E., Cropper W.P. Prediction of Forest Canopy Light Interception Using Three-Dimensional Airborne LiDAR Data. International Journal of Remote Sensing, 2009, vol. 30, pp. 189–207. https://doi.org/10.1080/01431160802261171

23. Musselman K.N., Margulis S.A., Molotch N.P. Estimation of Solar Direct Beam Transmittance of Conifer Canopies from Airborne LiDAR. Remote Sensing of Environment, 2013, vol. 136, pp. 402–415. https://doi.org/10.1016/j.rse.2013.05.021

24. Promis Á. Measuring and Estimating the Below-Canopy Light Environment in a Forest: A Review. Revista Chapingo Serie Ciencias Forestales y del Ambiente, 2013, vol. XIX, iss. 1, pp. 139–146. https://doi.org/10.5154/r.rchscfa.2012.02.014

25. Promis A., Schindler D., Reif A., Cruz G. Solar Radiation Transmission in and Around Canopy Gaps in an Uneven-Aged Nothofagus betuloides Forest. International Journal of Biometeorology, 2009, vol. 53, pp. 355–367. https://doi.org/10.1007/s00484-009-0222-7

26. Seidel D., Fleck S., Leuschner C. Analyzing Forest Canopies with Ground-Based Laser Scanning: A Comparison with Hemispherical Photography. Agricultural and Forest Meteorology, 2012, vol. 154-155, pp. 1–8. https://doi.org/10.1016/j.agrformet.2011.10.006

27. Yamamoto K., Murase Y., Etou C., Shibuya K. Estimation of Relative Illuminance Within Forests Using Small-Footprint Airborne LiDAR. Journal of Forest Research, 2015, vol. 20, iss. 3, pp. 321–327. https://doi.org/10.1007/s10310-015-0484-3