Production potential of Douglas fir at mesotrophic sites of Krtiny Training Forest Enterprise
2008
Kantor, P.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta
The study evaluates some production characteristics (height, breast height diameter, volume) of Douglas fir (Pseudotsuga menziesii) at mesotrophic sites of the Krtiny Training Forest Enterprise (Czech Republic) in mature stands. Twenty-nine mixed stands were assessed with the registered proportion of Douglas fir at an age of 85 to 136 years. Significant differences in the traits studied were observed between the Douglas fir and Norway spruce or European larch. Comparing the 10 largest Douglas firs with the 10 largest spruces or larches markedly higher production potential of introduced Douglas fir was found in all assessed stands. Annual ring analyses showed that the volume increment of Douglas fir trees ranged from 0.12 to 0.16 cubic m per year.
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