油松原产中国,自然分布范围广。它适应性强,树姿雄伟,有良好的保持水土和美化环境功能,是我国北方地区主要造林树种之一。油松人工林在黄土高原丘陵区较多见,但由于多方面的原因,目前80%以上的林分处于不健康状态,如果不采取必要的措施,必将严重影响其功能的有效发挥和生态建设的进程。 Pine Chinese origin, a wide range of natural distribution. Its adaptability, majestic tree pose, good soil and water conservation and beautification of the environment, is one of the main afforestation species in northern China. Pinus tabulaeformis plantations are more common in the hilly Loess Plateau, however, due to many reasons, more than 80% of the stands are in an unhealthy state at present. Failure to take the necessary measures will seriously affect the effective utilization of their functions and ecological construction The process.