The Effect of Partial Cutting on Tender Roots and Mycorrhiza of Norway Spruce

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UDС

630*221.04:630*164.3:631.466.12

DOI:

10.17238/issn0536-1036.2018.2.23

Abstract

Tree root systems often are affected by the forestry machinery movement under the forest canopy. At the same time, thinning has a positive effect in decreasing competition between remaining trees (both for their aboveground and underground parts); the soil moisture changes and the light regime improves. All forest-forming species have ectomycorrhizae. Mycorrhizas are especially useful in the taiga zone where relatively poor soils with the slow mineralization process of organic substances predominate, since plant roots receive more nutrition elements from mineral and organic compounds. The goal of research is to study the reaction of roots and mycorrhizas left after felling (mechanized thinning) to the changed conditions of growth. The root systems of the spruce element of the stand were studied in permanent sample plots in the Republic of Karelia (middle taiga subzone). Their condition was estimated in 5 and 14 years after cutting. We used the method of monoliths selected in technological corridors and swaths throughout the area of the site. Simple and ferny forms of spruce mycorrhiza were observed. The root mass was reduced significantly after felling in the technological corridor and could be restored in at least 14 years. Mycorrhiza formation occurred quickly enough. 5 years after felling, the mycorrhiza density on the roots preserved in the technological corridors reached at least 54 % of the background values in the swaths. In some cases, we observed an active restoration of mycorrhiza; their density in the technological corridor was higher than in the swath. Reduction of root competition, increased luminous flux reaching the soil surface in the zone of the technological corridor, are positive factors in the development of tender roots and mycorrhiza. The results of the study can be used to assess the environmental consequences of partial cutting, which is a remarkable wood sourcing.

Authors

A.Yu. Karpechko, Candidate of Agricultural Sciences, Research Officer

Affiliation

Forestry Research Institute of Karelian Research Centre of the Russian Academy of Sciences, ul. Pushkinskaya, 11, Petrozavodsk, 185910, Russian Federation; e-mail: yuvkarp@onego.ru

Keywords

root, mycorrhiza, partial cutting, technological corridor, swath

For citation

The Effect of Partial Cutting on Tender Roots and Mycor-rhiza of Norway Spruce. Lesnoy zhurnal [Forestry journal], 2018, no. 2, pp. 23–32. DOI: 10.17238/issn0536-1036.2018.2.23

References

1. Zarubina L.V., Konovalov V.N., Feklistov P.A., Klevtsov D.N., Kopytkov V.V. Otsenka sostoyaniya khvoynykh derev'ev na vyrubkakh v usloviyakh Evropeyskogo Severa [Conifers Stand Condition Assessment in the Fellings in a Climate of the European North]. Vestnik Severnogo (Arkticheskogo) federal'nogo universiteta. Ser.: Estestvennye nauki, 2015, no. 1, pp. 85‒94.
2. Kalinin M.I. Formirovanie kornevoy sistemy derev'ev [Formation of the Tree Root System]. Moscow, Lesnaya promyshlennost' Publ., 1983. 152 p. (In Russ.)
3. Karpechko A.Yu. Izmenenie plotnosti i kornenasyshchennosti pochv pod vliyaniem lesozagotovitel'noy tekhniki v elovykh lesakh yuzhnoy Karelii [Changes in Density and Root Occupation of Soils under the Influence of Logging Machines in Spruce Forests of South Karelia]. Lesovedenie [Russian Journal of Forest Science], 2008, no. 5, pp. 66–70.
4. Orlov A.Ya. Metod opredeleniya massy korney derev'ev v lesu i vozmozhnost' ucheta godichnogo prirosta organicheskoy massy v tolshche lesnoy pochvy [Method for Determining the Mass of Tree Roots in the Forest and Accounting for the Annual Increase in the Organic Mass in the Forest Soil Depth]. Lesovedenie [Russian Journal of Forest Science], 1967, no. 1, pp. 64–70.
5. Rakhteenko I.N. Rost i vzaimodeystvie kornevykh sistem drevesnykh rasteniy [Growth and Interaction of Root Systems of Woody Plants]. Minsk, AS BSSR Publ., 1963. 254 p. (In Russ.)
6. Semenova L.A. Morfologiya mikoriz sosny obyknovennoy v spelykh lesakh [Mycorrhizal Morphology of Scots Pine in Mature Forests]. Mikoriznye griby i mikorizy lesoobrazuyushchikh porod Severa [Mycorrhizal Fungi and Mycorrhizas of Forest-Forming Species of the North]. Petrozavodsk, Karelian Branch AS USSR Publ., 1980, pp. 103–132. (In Russ.)
7. Syunev V.S., Sokolov A.P., Konovalov A.P., Katarov V.K., Seliverstov A.A., Gerasimov Yu.Yu., Karvinen S., Vyal’kkyu E. Sravnenie tekhnologiy lesosechnykh rabot v lesozagotovitel'nykh kompaniyah Respubliki Kareliya [The Comparison of Logging Technology in Lumber Companies in the Republic of Karelia]. NII lesa Finlyandii METLA [Finnish Forest Research Institute (Metla)], 2008. 126 p. (In Russ.)
8. Shubin V.I. Mikotrofnost' drevesnykh porod, ee znachenie pri razvedenii lesa v taezhnoy zone [Woody Plants Mycotrophy and Its Importance for the Forest Cultivation in the Taiga Zone]. Leningrad, Nauka Publ., 1973. 264 p. (In Russ.)
9. Shubin V.I. Puti ispol'zovaniya mikotrofii drevesnykh porod v lesnom khozyaystve taezhnoy zony [Ways to Use Woody Species Mycotrophy in the Taiga Forestry]. Petrozavodsk, Karelian Branch AS USSR Publ., 1983. 40 p. (In Russ.)
10. Bowen G.D. The Ecology of Ectomycorrhiza Formation and Functioning. Plant and Soil, 1994, vol. 159, iss. 1, pp. 61–67.
11. Jonsson Y. Mekaniserade metoder I gallringen. Skogs-O. Landlr.-Skad. Tidskrift, 1976. 113 p.
12. Kardell L. Traktorskador och tillväxtförluster hos gran – analys av ett 10-årigt försök. Sveriges skogsvårdsförbunds tidskrift, 1978, no. 3, pp. 305–322.
13. Murphy G. Soil Damage Associated with Production Thinning. New Zealand Journal of Forestry Science, 1982, vol. 12, iss. 2, pp. 281–292.
14. Nadezhdina N., Čermak J., Neruda J., Prax A., Ulrich R., Nadezhdin V., Gasparek J., Pokorny E. Roots under the Load of Heavy Machinery in Spruce Trees. European Journal of Forest Research, 2006, vol. 125, iss 2, pp. 111–128.
15. Wallander H., Nilsson L.O., Hagerberg D., Bååth E. Estimation of the Biomass and Seasonal Growth of External Mycelium of Ectomycorrhizal Fungi in the Field. New Phytologist, 2001, vol. 151, iss. 3, pp. 753–760.
16. Wallander H., Wickman T., Jacks G. Apatite as P Source in Mycorrhizal and Non-mycorrhizal Pinus sylvestris Seedlings. Plant and Soil, 1997, vol. 196, iss. 1, pp. 123–131.

Received on December 15, 2017