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威信县林业部门在进行树种资源普查中发现,离县城不远的干河乡菜坝讲生长着一片福建柏。据调查,这片福建柏约有100多株,大的树高已有5来,胸径15厘米。福建柏,又名杜杉、杜树、建柏,是我国特有常绿乔木树种,属国家二类保护植物。树形美观,树干通直,树高可达20米,胸径可达80厘米。生长较快,适应性强,木材性质及用途与杉木相似,主根不明显,侧根较发达,穿透能力强,在页岩风化板结的土壤上,杉木根系只能穿透20——40厘米,而同龄的建柏能穿透60——70厘米,地上部分的长势也远远超过杉木。此外它还具有抗风力强,病虫害少等优点,是一种值得大力推广的珍贵速生树种。图为生长在干河乡的福建柏。
Weixin County forestry departments in the species resources census found that not far from the county town of Gan River Township stresses the growth of a Fujian Bo. According to the survey, this piece of Fujian Bo about more than 100 strains of trees have been five large, diameter 15 cm. Fujian cypress, also known as Du Shan, Du Shu, Jian Bai, is China’s unique evergreen tree species, is a national second-class protected plants. Beautiful tree, straight trunk, tree height up to 20 meters, diameter up to 80 cm. Fir growth, adaptability, wood properties and uses similar to Chinese fir, the main root is not obvious, more developed lateral roots, penetrating ability, shale weathering in the soil, the fir roots can only penetrate 20 - 40 cm, The same age Jian Bai can penetrate 60 - 70 cm, the growth of the ground part is far more than the fir. In addition it also has the advantages of strong wind resistance, less pests and diseases, is a worth promoting vigorously tree species. The picture shows the growth of dry cypress Fujian cypress.