杉木秋播苗造林早期效果的研究

A Study on the Early Stage Results of the Seedlings in Autumn Sowing for the Chinese Fir

选用杉木秋播苗和春播苗进行造林效果的对比试验。在造林后的头3年内,分别测定其树高、地径、冠幅、分枝数、枝条总长和根冠等生长指标。结果表明,秋播苗幼林各项生长指标均比春播苗造林的幼林优势;秋播苗造林成活率也较春播苗造林提高了5％,并可提早一年郁闭,减少抚育管理经费,有较高的经济效益。宜提倡杉木秋播苗造林,以提高造林质量。

The tree height, ground diameter, crown diameter, tatol shoot lenth and root distribution were measured separately in both plantation planted with seedlings in spring and the plantation planted with autumn after three years. The results showed that increment index of seedlings in spring survival rate with dominance over that in autumn sowing. The silvicultur sowing has gained autumn seedlings was 5 per cent higher than with spring seedling.