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我省地处青藏高原东北部,受寒冷、干旱、霜冻、冰雹、风沙等不利气候条件影响,树种稀少,分布不均,成林面积很小。随着四化建设的发展,对多种林副产品的需求与日俱增,造林树种单纯的矛盾日趋突出。自五十年代以来,我所先后从国内二十多个省市(区)引进树种300余种,试种成功的有三十余个树种,已在省内推广,丰富了我省造林树种,促进了林业生产的发展。现将近几年的引种驯化和育苗技术整理于下:
The province is located in the northeast of the Qinghai-Tibet Plateau, affected by adverse climatic conditions such as cold, drought, frost, hail and sandstorm. The tree species are scarce, distributed unevenly, and the forest area is very small. With the development of the four modernizations, the demand for various kinds of forest by-products has been increasing day by day, and the simple contradiction between the afforestation species has become increasingly prominent. Since the 1950s, we have introduced more than 300 species of trees from more than 20 provinces (regions) in China. There are more than 30 tree species successfully planted and have been popularized in the province, enriching the afforestation species in our province, Promote the development of forestry production. In recent years, introduction and domestication and breeding technology finishing in the next: