Pozyskanie drewna daglezji zielonej (Pseudotsuga menziesii (Mirb.) Franco) w Lasach Państwowych w latach 2006-2018 oraz znaczenie drewna tego gatunku w Polsce i Europie

The paper presents an analysis of the assortment structure of Douglas−fir timber harvest in the State Forests, National Forest Holding in 2006−2018 and discusses the role of wood of this species in Poland and Europe. The analyzes were made on according to the division into regional directorates of the State Forests and were the based on the data from the reports created by the State Forests Information System. In years 2006−2018, the total harvest of merchantable timber in the State Forests amounted to 259,215.7 m³, of which large−size wood equaled to 194,306.8 m³ (75%) and medium−size wood – to 64,908.9 m³ (25%). The highest volume of merchantable timber in total, large−size wood and medium−size wood was harvested in the regional directorate in Szczecin (NW Poland). The largest total annual harvest of merchantable timber of Douglas−fir was recorded in Szczecin directorate in 2017 (11,555.44 m³, i.e. 43% of the national production). The harvest of large−size and medium−size assortments also peaked in 2017 amounting to 8953.56 m³ and 2601.88 m³, respectively. The highest harvest of timber of Douglas−fir in Poland show the regional directorates of the State Forests located in the north−western and western Poland.