|Publisher:||Alberta Environmental Protection, Land and Forest Services, Forest Management Division (1994)|
|Other formats:||lrf lit doc lrf|
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Provincial-based individual tree volume tables for Douglas-fir, white birch, tamarack, Engelmann spruce and jack pine (Ecologically based individual tree. Provincial-based individual tree volume tables for Douglas-fir, white. Are you sure you want to remove Provincial-based individual tree volume tables for Douglas-fir, white birch, tamarack, Engelmann spruce and jack pine (Ecologically based individual tree.
Tamarack average volume growth (. 0 m3 ha−1 year−1) on the drained site was superior to that of black spruce . 0 m3 ha−1 year−1) on the drained site was superior to that of black spruce (. 1 m3 ha−1 year−1). In general for both species, there were no significant differences in growth between trees on the different ditch spacings. Tree growth was measured before, and 9 years after draining a boreal fen that supported a 50- to 60-year-old stand of tamarack (Larix laricina (Du Roi) K. Koch) and black spruce (Picea mariana (Mill. Treatments consisted of a series of ditches spaced 30, 40 or 50 m apart, and an undrained control.
Huang S (1994) Ecologically based individual tree volume estimation for major Alberta tree species. Sharma M, Zhang SY (2004) Variable-exponent taper equations for jack pine, black spruce, and balsam fir in eastern Canada. Pub. No. T/288, Alberta Environmental Protection, EdmontonGoogle Scholar. For Ecol Manage 198:39–53CrossRefGoogle Scholar. Sloboda VB, Gaffrey D, Matsumura N (1998) Representation of tree individual taper curves and their dynamic by spline functions and generalization by linear taper curve models. Allg Forst Jagdzeitung 169(2):29–39Google Scholar.
Regional differences were observed for trembling aspen, white spruce, and jack pine, and for those species, separate ecozone-specific taper equations were developed. This methodology can be considered useful for individual volume estimation and for developing taper equations. This paper reports on the comparison of a variableexponent taper model and a volume-ratio model for estimating inside-bark cumulative bole volume to three predefined upper stem diameters using stem analysis data Pinus occidentalis trees in La Sierra, Dominican Republic.
White spruce is the predominant tree species in the Boreal White and Black Spruce . Subalpine fir is a major associate to the north.
White spruce is the predominant tree species in the Boreal White and Black Spruce (BWBS), except in the Fort Nelson area where the poorly drained lowlands are dominated by black spruce. White spruce, Engelmann spruce, and their hybrids are all present, Engelmann spruce dominating in southeastern British Columbia, particularly at high elevations, and white spruce dominating in the north.
Converting basic tree measurements from these inventories to volume .
Converting basic tree measurements from these inventories to volume, biomass, and carbon requires information for wood and bark, such as volume estimation equations, specific gravity, and percentage bark. Composite volume tables for timber and their application in the Lake States. concolor Abies White fir Jack pine amabilis 11 117 116 115 113 111 110 108 107 106 105 103 98 97 95 94 93 81 73 71 68 67 65 63 43 42 41 22 20 19 17 15 12 . 6 . 2 . 4 . 9 . 1 . 8 . 7 . 3 .
SpeCies White spruce Black spruce Jack pine Balsam fir Tamarack .
SpeCies White spruce Black spruce Jack pine Balsam fir Tamarack larch Lodgepole pine Trembling aspen Black poplar White birch Green ash Manitoba maple White elm aN. b, n umber of obser va tions. For the minor species, except tamarack larch (lodgepole pine, Manitoba maple, and white elm) the Hilt function gave better esti mates than K1 and K2. The K2 function estimated green ash'with a large positive bias.
Individual tree-based methods rely on detecting individual trees . Table 2. Summaries of features extracted for plots and individual trees.
Individual tree-based methods rely on detecting individual trees, constructing their geometry (. tree height, crown shape) and deriving characteristics such as stem volume and stem diameter, based on geometry and other statistical variables. Based on the results of individual tree detection and matching with field-measured trees, the matching rate for 69 plots ranged from 43% to 96%, with a mean of 69%.
Facts on Alberta Wood Species. White Spruce Black Spruce Jack Pine. Other companions to jack pine in mixed stands include white spruce, balsam fir, lodgepole pine, trembling aspen, balsam poplar and white birch. Lodgepole Pine Balsam Fir Tamarack. Trembling Aspen Balsam Poplar White Birch. A lberta F acts on woo d series. White SpruceWHITE SPRUCE. SPF includes lodgepole pine, white spruce, Engelmann spruce, red spruce, black spruce, jack pine, balsam fir, and subalpine fir. 16. BLACK SPRUCE. Traveling northwest through Alberta, jack pine is replaced by lodgepole pine. Jack pine coverage in Alberta.
A spruce is a tree of the genus Picea /paɪˈsiːə/, a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. Spruces are large trees, from about 20–60 m (about 60–200 ft) tall when mature, and have whorled branches and conical form.