一、绪言东北不仅是天然林最丰富的地区,且也是人工林较多的地方。这些人工林大部分布在长春以南,尤以辽东沈安沿线一带的最为有名。主要树种为落叶松(Larix leptolepis,L.olgensis,L.olgensis var.koreana)、黑松(Pinus tabulaeformis)和红松(Pinus kora-iensis)。由于这些人工林皆分布在交通发达人烟稠密的少林地区,所以它们不仅在生产用材方面有着极其重要的经济意义,而且在保护土壤、涵养水源、保障农田丰收和卫生保健等方面,也都起着极其重要的作用。因此,对这些珍贵的人工林的合理经营与管理,就成为 I. INTRODUCTION Northeast China is not only the most abundant area of ​​natural forests, but also a place with more plantations. Most of these planted forests south of Changchun, especially the Liaodong Shen An area along the most famous. The main tree species are Larix leptolepis, L. olgensis, L. olgensis var. Koreana, Pinus tabulaeformis and Pinus kora-iensis. As these plantations are all located in densely populated Shaolin areas, they are not only economically significant for the production of timber, but also play an important role in protecting the soil, conserving water sources, ensuring farmland harvest and health care Extremely important role. Therefore, the rational management and management of these precious plantations has become