太阳河自然保护区红椿自然更新调查研究

红椿属于强阳性树种,在适合的环境中生长迅速,树干通直,材质坚韧,纹理美观,是中国南方主要的珍贵用材树种。采用样地调查法,对太阳河自然保护区山地雨林进行红椿自然更新能力调查。调查结果,在设置的5个样地中,除选定的红椿目标树外无自然更新的红椿幼树,表明红椿在此区域内自然更新较难,建议采用人工繁殖进行红椿更新。由于调查样地面积较小,样地选择和调查结果存在一定的局限性,有待开展更全面更完整的调查研究。

Investigation on Natural Regeneration of Toona cliata in Taiyanghe Nature Reserve

As a typically heliophilous species growing rapidly in suitable environment,Toona cliata has straight trunk,tough material and beautiful texture,which is the main precious timber species in South China.The natural regeneration of Toona cliata in mountain rain forest of Taiyanghe Nature Reserve was investigated by the method of sample plot.The results showed that in the 5 plots,except for the selected target trees,there were no small trees and young trees of Toona cliata,which indicated that the natural regeneration of Toona cliata was difficult in this area,so the artificial propagation should be used for the regeneration.Due to the small area of sample plot,the sample selection and investigation results had some limitations,which need to be carried out more comprehensive investigation.