Results of 20 years old Douglas-fir provenance experiment established on the northern slopes of Rila Mountain in Bulgaria

E.B. Popov
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E.B. Popov: Department of Forest Genetics Physiology and Plantations, Forest Research Institute - BAS, Sofia, Bulgaria

Journal of Forest Science, 2014, vol. 60, issue 9, 394-399

Abstract: The purpose of this study is to facilitate the detection of provenances relevant to the reforestation practice in Bulgaria. Studies were carried out in a Douglas-fir provenance trial plantation established at an altitude of 800 m a.s.l. on the northern slopes of Rila Mountain. To establish the productivity, assess the stands and rank provenances biometric procedures, methods of descriptive statistics and ANOVA were used. The diameter at breast height, average height, dominant height, total growing stock volume, assortment timber structure and survival of trees were analyzed in the stands of 55 Douglas-fir provenances. The provenances were characterized in terms of productivity of forest stands at 20 years of age and their ability to produce high quality timber was evaluated. Provenances: Newhalem No. 4 (Seed zone 402), Darrington No. 7 (Seed zone 403), Parkdale No. 19 (Seed zone 661) and Idanha No. 29 (Seed zone 452) have been recommended. Among the recommended provenances are those with growing stock volume with branches from 296 to 354 m3.ha-1, mean annual increment from 14.8 to 17.7 m3.ha-1 and dominant heights of up to 17.9 m.

Keywords: Pseudotsuga menziesii; introduction; plantation forestry; productivity; assortment structure (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:60:y:2014:i:9:id:14-2014-jfs

DOI: 10.17221/14/2014-JFS

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