J. For. Sci., 2021, 67(6):298-305 | DOI: 10.17221/205/2020-JFS

Structure of black walnut (Juglans nigra L.) stands on sandy soils in HungaryShort Communication

Tamás Ábri1,2, Zsolt Keserü*,2, Fruzsina Szabó1, Károly Rédei1
1 Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
2 Forest Research Institute, National Agricultural Research and Innovation Centre, Püspökladány, Hungary

Understanding the various processes and relationships that take place in forest ecosystems is generally possible only through long-term observations. This is especially true of the biological production of forests, through the in-depth exploration of their structure. In Hungary the black walnut (Juglans nigra L.) is one of the most valuable exotic tree species, mainly because of its very valuable wood, with fine tissues and unique colour, for furniture industry. Generally, the species is established by manual seeding, and can also be regenerated well by coppice shoots, but not by natural seeding. Black walnut regularly produces seeds from the age of 25-30 years and its rotation age is 70-80 years. It is also used outside forests due to the very decorative stem and crown shapes. In this paper, out of the stand structure factors, the relationships between age and height (r2 = 0.7205), age and diameter (r2 = 0.7719), age and number of stems per ha (r2 = 0.3485) as well as between diameter and number of stems per ha (r2 = 0.4595), all considered important for cultivation technology, were examined (based on the data collected in 34 black walnut stands, age of 7 to 67 years). We also analysed the diameter distributions in two black walnut stands with tending operations, reporting them as a case study. Its future role may be increased mainly on sandy soils of better quality, therefore the more accurate exploration of the structure of black walnut stands growing under such conditions can be considered as gap-filling.

Keywords: Juglandaceae; stand structure; growing technology

Published: June 4, 2021  Show citation

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Ábri T, Keserü Z, Szabó F, Rédei K. Structure of black walnut (Juglans nigra L.) stands on sandy soils in Hungary. J. For. Sci. 2021;67(6):298-305. doi: 10.17221/205/2020-JFS.
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    References

    1. Ares A., Brauer D. (2004): Growth and nut production of black walnut in relation to site, tree type and stand condition in south-central United States. Agroforestry Systems, 63: 83-90. Beran F., ©indelář J. (1996): Perspektivy vybraných cizokrajných dřevin v lesním hospodářství České republiky. Lesnictví-Forestry, 42: 337-355. (in Czech) Go to original source...
    2. Herman R.K. (1987): North American tree species in Europe. Journal of Forestry, 85: 27-32.
    3. Hrib M. (2005): Pěstování ořeąáku černého (Juglans nigra L.) v lesích jiľní Moravy. Sborník prací institucionálního výzkumu MZLU Brno, 2: 1-78. (in Czech)
    4. Hrib M., Kneifl M., Kadavý J. (2003): Growth of black walnut (Juglans nigra L.) in the floodplain forests of the ®idlochovice Forest Enterprise. Ekológia, 22: 162-176.
    5. Járó Z. (1962): Termőhelyi tényezők ismertetése. In: Majer A. (ed.): Erdő- és termőhelytipológiai útmutató. Országos Erdészeti Főigazgatóság. Budapest, Publisher: 11-68. (in Hungarian)
    6. Kremer D., Čavlović J., Boľić M., Dubravac T. (2008): Distribution and management of black walnut (Juglans nigra L.) in Croatia. Periodicum Biologorum, 110: 317-321.
    7. National Food Chain Safety Office (NFCSO) Forestry Directorate (2015): Hungarian National Forest Data Base 2015. Available on https://portal.nebih.gov.hu/documents/10182/1166168/Erdovagyon+gazdalkodas+2015.pdf/e94a3513-4051-69fe-ed9e-0d6cf2297527
    8. Nicolescu V.N. (1998): Consideration regarding black walnut (Juglans nigra) culture in the north-west of Romania. Forestry: An International Journal of Forest Research, 71: 349-354. Go to original source...
    9. Nicolescu V.N., Rédei K., Vor T., Bastien J.C., Brus R., Benča» T., Dodan M., Cvjetkovic B., Andraąev S., La Porta N., Lavnyy V., Petkova K., Perić S., Bartlett D., Hernea C., Pástor M., Mataruga M., Podrázský V., Sfeclă V., ©tefančik I. (2020): A review of black walnut (Juglans nigra L.) ecology and management in Europe. Trees, 34: 1087-1112. Go to original source...
    10. Palotás F. (1973): Fekete dió állományok fatermése. Erdészeti Kutatások, 69: 191-199. (in Hungarian)
    11. Ponder F. Jr. (2004): Soils and nutrition management for black walnuts. In: Michler C.H., Pijut P.M., Van Sambeek J.W., Coggeshall M.V., Seifert J., Woeste K., Overton R., Ponder F. Jr. (eds): Proceedings of the 6th Walnut Council Research Symposium. Lafayette, July 25-28, 2004: 188.
    12. Rédei K. (2014): Fekete dió (Juglans nigra L.). In: Rédei K. (ed.): Bevezetés az ültetvényszerű fatermesztés gyakorlatába. Budapest, Agroinform Kiadó: 80-82. (in Hungarian)
    13. Rédei K., Takács M., Kiss T., Keserű Z. (2019): Ecology and management of black walnut (Juglans nigra L.) in Hungary. South-East European Forestry: SEEFOR, 10: 187-191. Go to original source...
    14. Réh R. (1994): A perspective species for Central European woodworking industry - black walnut (Juglans nigra L.). In: Proceedings of the 2nd International symposium Wood Structure and Properties 94 - Latest Achievements in Research of Wood Structure and Physics. Zvolen, Technical University: 235-246.
    15. Réh R. (1996): Vybrané vlastnosti dýh orecha čierneho (Juglans nigra L.). In: Editors: 1. vedecké sympózium Interakcia dreva s rôznymi formami energie. Zvolen, Technická Univerzita: 143-146. (in Slovak)
    16. ©indelářová J. (1973): Vlastnosti dřeva introdukovaných dřevin. Praha, Studijní informace: 64. (in Czech)
    17. Sopp L., Kolozs L. (eds) (2013): Fatömegszámítási táblázatok. 4th Ed. Budapest, National Food Chain Safety Office, State Forest Service: 280. (in Hungarian)
    18. Stefanovits P. (1963): Magyarország talajai. Budapest, Akadémiai Kiadó: 442. (in Hungarian)
    19. Tokár F., Krekulová E. (2005): Influence of phytotechnology on growth, production and leaf area index of black walnut (Juglans nigra L.) monocultures in Slovakia. Journal of Forest Science, 51: 213-224. Go to original source...
    20. Tóth I. (1991): A fekete dió. Erdészeti Lapok CXXVI, 19: 21. (in Hungarian)
    21. Tóth I. (1996): A fekete dió erdőművelése és használata. In: Sárvári J. (ed.): Diófából erdőt. Budapest, Mezőgazda Kiadó: 21. (in Hungarian)

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