大兴安岭低山丘陵地区落叶松造林技术的研究

对大兴安岭低山丘陵地区影响落叶松人工林成活、成林、成材的造林技术措施进行多种组合的试验研究,采用定时、定位观测方法,建立实体模式,从中筛选出一套完善、科学适用的造林配套技术。研究结果:采用Ⅰ级苗S_(1-1)型,地径高生长较粗大,根系发达,苗木造林后抗逆性强,效果显著;坡向和土层厚度在立地条件诸因子中起主导作用。坡向对幼林高、地径生长影响不同。有的阳坡较阴坡好,有的阴坡较阳坡好。不同土层厚度对地径和高生长的影响无显著性差异,但表现出了随土层厚度增加而生长量增加的趋势。整地措施、造林季节、造林时间、栽植方法、幼林抚育,是确保幼林成活的关键措施。

Planting techniques of Larix gmelini in low mountain and hillside of Daxinganling

Combinations of planting techniques affected survive,forest,timber in low mountain and hillside of Daxinganling were tested. By fixed time, Orientation observation, we Screen out a perfect,scientific Planting techniques. The results show that;The seedlings with developed root system, high ground diameter, height growth have Strong resistance to bad conditions. Soil depth and aspects are important site factors. Aspect has unstable role on height growth, ground diameter. Soil depth has hot significant effect on them. Imcrement of them raised witn the increase of soil depth. Site preparation, planting season, planting period, Cultivating method, forest felling are all the key measures for young forest survires.