在北美地区,我们可以关注一些常见的松科植物,包括Pine(松)、Fir(冷杉)、Spruce(云杉)、Larch(落叶松)、Hemlock(铁杉)、以及Douglas Fir(黄杉)。这些植物的俗名与它们所属的属相对应,且在北美地区相对常见。在区分这些植物时,我们可以通过观察叶子的数量、形状、与枝条的连接方式、球果的形态等...
Pine 松(Pinus )Fir 冷杉(Abies )Spruce 云杉(Picea )Larch落叶松(Larix )Hemlock铁杉...
Spruce Pine Fir Lightweight and easy to work with, our Western Canadian SPF lumber combines an excellent strength-to-weight ratio, dimensional stability and sustainability, making it a top choice for versatile applications. We make it in
该树种组合包括结构参数相似的树种, 即美国西部的恩氏云杉、西加云杉和黑松以 及美国东北部的香脂冷杉、短叶松、红松和其 他种类云杉。云杉-松-冷杉(南方)适用于一 般构架用途。在高级结构性轻型构架等级中, 特定尺寸的木制品适用于轻型桁架及其他工 程应用。
The design of the model uses carefully crafted textures that mimic the natural beauty of a real Fir Spruce. License: Free StandardFree Standard Learn more Published 6 months ago Nov 4th 2024 Architecture 3D Models Nature & plants 3D Models trees tree green plant forest flora pine growth ...
CLS Kiln dried spruce-pine-firCouncil of Forest Industries
Christmas Trees - Genetics are Important. We have our own Scotch Pine seed orchard; Fraser, Douglas, Canaan, & Balsam Fir Seed orchards; and a Colorado Blue Spruce Seed Orchard.
"Length effects in 38 mm spruce-pine-fir dimension lumber." Canadian Journal of Civil Engineering, 17(2), 226-237.Madsen, B. 1990a: Length effects in 38 mm spruce-pine-fir dimension lumber. Canadian Journal of Civil Engineering 17(2): 226-237...
Fir is any of the species of conifers belonging to the genusAbiesincluded in thePinaceae(or pine) family. These large trees, although closely related to cedars, can be distinguished from other conifers by their soft cones that perch upright like candles. Unlike the paired needles of spruce an...
1) Douglas(s)fir [ pine, spruce ] [植]黄杉属;花旗松, 洋松 2) Pinus ponderosa var.ponderosa 太平洋黄松 1. Division on Suitable Climatic and Ecological Region for Introducing ofPinus ponderosa var.ponderosato China; 我国引种太平洋黄松的气候适生区区划 ...