In the conditions of central Europe, Douglas fir is an introduced tree spec
ies with an extremely high production potential. The fact was confirmed by
investigations made in an experimental mixed stand which has been left to n
atural development with no intentional fellings since 1961. The stand is si
tuated 10 km north of Brno at an altitude of 330 m and its age in the last
year of measurements (1999) was 68 years. In a colourful mixture of 7 speci
es (pinc, larch, Douglas fir, oak, beech, hornbeam, linden) Douglas fir sin
gled out during the natural development ns the most productive species with
the volume of one tree and the volume increment reaching up to 2.9 m(3) an
d 0.15 m(3) yr(-1) at the age of 68 years. With a certain circumspection, D
ouglas fir can be recommended as an alternative tree species (at the expens
e of spruce) in the target composition of forest stands in areas of wooded
hills in the Czech Republic.