Description
Pinus massoniana Lamb (Pinus massoniana Lamb.) is a pine tree in the pinaceae. It can reach a height of 45 meters and a DBH of 1.5 meters. The bark is reddish brown, the branches are flat or oblique, the crown is wide tower or umbrella-shaped, the branches grow one round per year (two rounds in Guangdong), the winter buds are oval cylindrical or cylindrical, the needles are fine, soft, slightly twisted, the stomata line on both sides, the margin is serrated; Leaf sheaths are persistent. Male corpuscles light reddish-brown, cylindrical, clustered in the axils of the lower part of the new branch, spikes, female corpuscles clustered near the top of the new branch, light purple red, seeds long ovoid, april-May flowering, cones mature in October-December of the second year.
Masson's pine is widely distributed in central China and South China, from Henan and southeastern Shandong in the north, to Guangdong and Guangdong in the south, Hunan (Cili County) and Taiwan in the south, from coastal areas in the east, to central Sichuan and Guizhou in the west. They are generally distributed in the lower reaches of the Yangtze River below 600-700m, above 1200m in the middle reaches and below 1500m in the upper reaches. It is the main timber tree in south China. High economic value.
Masson pine is not resistant to rot. Heart sapwood difference is not obvious, light yellow brown, long longitudinal crack, long flake peeling; Straight wood texture, thick structure; Resin resistant to moisture. Specific gravity 0.39-0.49, elastic, rich resin, weak corrosion resistance. It is an important timber tree species, but also the pioneer tree species of barren mountain afforestation. Pine is an important material in industrial and agricultural production, mainly used for construction, sleepers, pillars, board making, packing boxes, furniture and wood fiber industry (rayon pulp and paper) raw materials. Tree trunk can be cut from pine resin, for medicine, chemical raw materials. The root resin content is rich; The trunk and root can be used to cultivate poria cocos and mushrooms for Chinese medicine and edible, and bark can be used to extract tannin extract. For the south of the Yangtze River basin important barren mountain afforestation tree species
