水曲柳、胡桃楸等天然次生林生长情况调查

Analysis on the growth in Fraxinus mandshurica,Juglans mandshurica,etc secondary growth forests

通过标准地调查,对现有天然次生林水曲柳、胡桃楸和黄菠萝幼龄林林分特征、优良单株径级分布、生长过程进行研究,指出相应的抚育技术措施,为小兴安岭天然次生林中水曲柳、胡桃楸和黄菠萝等珍贵阔叶树种单株定向培育提供科学依据。

Based on a stand investigation, and combined with rate of superior individuals being selected, the growth index and quality index were used as a basis of comprehensive evaluation for selection criteria of superior individuals in Fraxinus mandshurica, Juglans mandshturica and Phellodendron amurennse secondary growth forests of Lesser Xingan Mountains. Selection criteria of superior individuals for F. mandshurica, J. mandshurica and P. amurennse young forests were separately determined by analyzing research results. The standard was suitable for choosing individual trees in directive culture of natural growth analysis.