本文应用树木年轮学方法，并结合土壤立地质量评价对沈阳北陵古油松衰亡的原因进行了初步研究。结果认为：大气和土壤环境中二氧化硫、铝、铅、镉的长期严重污染是古油松衰亡的重要原因。受到污染毒害的古油松生活力下降，生长衰退，降低了对外界逆境因子的抵抗力，对病虫害也变得敏感，表现为在虫害的作用下死亡 In this paper, the tree ring rotation method, combined with the assessment of the quality of soil sites in ancient Beiling, Shenyang ancient deciduous cause of the reasons for a preliminary study. The results show that: the long-term serious pollution of sulfur dioxide, aluminum, lead and cadmium in the atmosphere and soil environment is the important reason for the decline of the ancient Chinese pine. Pinus tabulaeformis, which has been poisoned by pollution, has decreased viability, declined in growth, reduced its resistance to adverse environmental factors, and became susceptible to pests and diseases, resulting in the death of pests.