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杉是我国群众最喜爱的造林树种,在1000多年的栽培历史中,积累了丰富的经验。但传统的栽杉技术也存在一些误区。 误区之一,只注重杉木自然类型的选择,忽视了选用良种。杉有三种自然类型:油杉、芒杉、线杉。习惯认为:油杉木材色红坚实,抗旱性强;芒杉生长较快,但木材色白而疏松,抗旱性较差;线杉分布局限于湖南、云南等地。因此,一些地方造林时往往只选择油杉,这是不科学的。现代研究表明:从遗
Cedar is our favorite afforestation species, in the 1000 years of cultivation history, has accumulated rich experience. However, there are some misunderstandings in the traditional techniques of collecting fir. One of the errors, only focus on the natural selection of Chinese fir, ignoring the selection of elite. There are three natural types of cedar: oil fir, cedar, fir. Habits that: oil fir wood color red solid, drought-resistant; Fir spruce grow faster, but the wood is white and loose, drought resistance is poor; confined distribution of thread fir in Hunan, Yunnan and other places. Therefore, some places often only choose oleanders when reforestation, which is unscientific. Modern research shows: from legacy