通过定位试验和定期观察表明 ,火炬松在日照市沿海地区能正常生长 ,虽有寒害 ,但可通过选择抗寒种源 ,选择适宜造林地予以解决。火炬松幼树胸径、树高均有 4个生长高峰 ,4年生高、径生长量分别是同龄黑松的 3.34倍和 2 .16倍 ,表现出明显的速生特性。追施氮肥可促其加快生长。对松梢暝、松毛虫的抗性优于黑松、赤松 Through the positioning test and regular observation, it shows that Pinus taeda can grow normally in the coastal area of ​​Rizhao City. Although it has chilling damage, it can be settled by selecting the hardy provenance and choosing suitable afforestation land. Pinus taeda saplings diameter, tree height has 4 growth peak, 4-year-old height, diameter growth were 3.34 times and 2.16 times the same age black pine, showing obvious fast-growing characteristics. Topdressing nitrogen can promote its growth. On the pine shoots, pine caterpillar resistance better than black pine, red pine