传播松材线虫的媒介昆虫主要有松褐天牛、云杉花黑天牛;
The medium insects spreading pine wood nematode are Asemum striatum andCriocephalus reusticus.
尽管北美短叶松的气孔对轻度干旱胁迫不如黑云杉敏感,但是它对中度及严重干旱胁迫的敏感程度却高于黑云杉。
Despite less sensitive to mild drought stress in jack pine than in black spruce, stomata was more sensitive to moderate and severe stress in jack pine than in black spruce.
松、冷杉、云杉一类的树木是软木材。
此外,有冷杉、云杉、松、铁杉和桦等属乔木花粉和杜鹃科、唇形科、莎草科灌木和草本植物花粉及凤尾蕨、水龙骨、卷柏等属孢子。
Besides, pollen of Abies, Picea, Pinus, Tsuga, Betula, Ericaceae, Labiatae and Cyperaceae and spores of Pteris, Polypodium and Selaginella were also observed.
喀纳斯自然保护区内,不但有五针松纯林,还有五针松与云杉或冷杉的混交林。
Within the Kanas Nature Reserve, grow pure forest of stone pine as well as mixed forest of stone pine with spruce or stone pine with fir.
木材用于制造木浆一般称为纸浆和来自软木树,如冷杉,云杉,松树,铁杉和落叶松。
The timber used to make wood pulp is generally called pulpwood and comes from softwood trees, such as fir, spruce, pine, hemlock, and larch.
木材用于制造木浆一般称为纸浆和来自软木树,如冷杉,云杉,松树,铁杉和落叶松。
The timber used to make wood pulp is generally called pulpwood and comes from softwood trees, such as fir, spruce, pine, hemlock, and larch.
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