不同育苗方式南方红豆杉在杉木人工林中套种初期效果研究

Study on the Initial Effect of Interplanting of Taxus chinensis in Chinese fir Plantations With Different Seedling Methods

以杉木人工林套种为大背景,分析了不同育苗方式下南方红豆杉的初期成长效果,选择两年生的南方红豆杉幼苗,其培育方法分别为裸根苗种植、塑料杯营养袋育苗、无纺布营养袋育苗,研究了在杉木人工林套种下的成长情况。经过实验研究,发现3种不同类型的育苗中利用无纺布营养袋进行育苗的造林早期效果表现较好,南方红豆杉的初期成活率达到了97.5%,当年的抽高率最高为32.3 cm;利用塑料营养杯进行培育的南方红豆杉成长效果位列第二,最差的为裸根培育。同时分析了不同位置套种的实际成活率利用无纺布营养袋进行培育的南方红豆杉,成活率为96.1%~98.1%,整体的成活率并无明显差异,同时下坡的生产效果较好;另外不同坡向间造林的成活率达到了95%~98%,差异并不显著,当年的幼苗抽高在22~35 cm差异较为显著,其中在阴坡生长的红豆杉初期表现较好。

Taking the interplanting of Chinese fir plantation as the background, the initial growth effect of Taxus chinensis under different seedling methods was analyzed, and the biennial seedlings of Taxus chinensis were selected. Nutritious bags were used to raise seedlings, and to analyze the growth of Chinese fir plantations under interplanting. After experimental research, it was found that among the three different types of seedlings, the use of non-woven nutrient bags for seedlings performed better in the early afforestation. The growth effect of Taxus chinensis cultivated in plastic nutrition cups ranked second, and the worst was cultivated by Logan. At the same time, the actual survival rate of interplanting in different locations was analyzed.When Taxus chinensis is cultivated with non-woven nutrition bags, the survival rate was 96.1%~98.1%. The overall survival rate was not significantly different, and the production effect of downhill was better. In addition, the survival rate of afforestation between different slope aspects reached 95%~98%, and the difference was not significant. The difference in the seedling height of 22~35 cm in that year was more significant, and the yew growing on the shady slope performed better in the early stage.