Linking intra-tree-ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii(Mirb.) Franco)
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چکیده
منابع مشابه
Effects of Harvesting Systems and Bole Moisture Loss on Weight Scaling of Douglas-Fir Sawlogs (Pseudotsuga Menziesii var. glauca Franco)
Characterizing the moisture loss from felled trees is essential for determining weight-to-volume (W-V) relationships in softwood sawlogs. Several factors affect moisture loss, but research to quantify the effects of bole size and harvest method is limited. This study was designed to test whether bole size, harvest method, environmental factors, and the associated changes in stem moisture conten...
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Influence of wood density in tree-ring based annual productivity assessments and its errors in Norway spruce O. Bouriaud, M. Teodosiu, A. V. Kirdyanov, and C. Wirth Forest Research and Management Institute, Station Câmpulung Moldovenesc, Calea Bucovinei 73b, 725100 Câmpulung Moldovenesc, Romania V. N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036 Russia Institute of Bi...
متن کاملMicrostructure Alignment of Wood Density Profiles
We studied intra-annual wood density profiles of Douglas-fir tree rings (Pseudotsuga menziesii [Mirb.] Franco) in southwestern Germany. Growth rate varies differently over time throughout the circumference of trees. This leads to differences in wood formation, which can be observed in the shape of the density profiles of the same tree ring measured in different radial directions. Due to this sp...
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Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) (DFB) causes considerable mortality to Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in western North American forests. We evaluated the use of semiochemical-baited multiple-funnel traps for the protection of small, high-value stands of trees, such as those occurring in campgrounds, rest areas, and small parks when Douglas-fir mortalit...
متن کاملEffects of live crown on vertical patterns of wood density and growth in Douglas-fir
It would be valuable economically to know what are the biological triggers for formation of mature wood (currently of high value) and (or) what maintains production of juvenile wood (currently of low value), to develop silvicultural regimes that control the relative production of the two types of wood. Foresters commonly assume the bole of softwoods produces juvenile wood within the crown and m...
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ژورنال
عنوان ژورنال: Annals of Forest Science
سال: 2006
ISSN: 1286-4560,1297-966X
DOI: 10.1051/forest:2006050