【摘要】 根据塞罕坝林场目前的树种结构与林分生长状况,提出了在天然次生林和人工林冠下引种红松的建议,通过对红松生物学特性以及自然分布区与塞罕坝地理条件和气候条件等的分析,认为塞罕坝林冠下引种红松是技术上合理、生产上可行的。更多还原

【Abstract】 According to the structure of tree species and growth status of forest stands of Saihanba Free Farm,suggestions of introduction and offorestation of Pinus koraiensis under the crown of artificial and secondary forests are put forward in this paper.By comparison and analysis of geographical and climatic conditions between Saihanba area and the natural distribution regions of P. koraiensis,it is concerned that the afforestation of this pine tree in the artificial and secondary forests in Saihanba is possible both in technique and in production.更多还原