红松陡坡丛状造林效果分析

Effect of Massive Planting Pinus koraiensis on Steep Slopes

在立地条件较差的陡坡山地进行丛状造林,可以充分利用一切可以利用的山地,提高造林的成活率和保存率,迅速恢复森林的生态环境。通过对红松(Pinus koraiensis Sieb.et Zucc.)陡坡丛状造林效果的研究分析,结果表明,陡坡丛状造林以3株一丛或5株一丛为宜,在不易发生水土流失的林地,初植密度以4 400株.hm-2为宜;立地条件较差,坡度较陡,易发生水土流失的林地,以6 600株.hm-2为宜;丛状造林保存率能达到70%以上,蓄积量比对照区提高38%～50%。

Massive planting which were conducted on steep slopes of mountain under poor site conditions ; taking full advantage of the mountain not only can improve the survival ＆ preservation rate,but also can quickly restore the ec- ological environment of the forest. Through analysis of massive plant effect on steep slopes for Pinus koraiensis, re- sult shows that：massive planting on steep slopes being three or five trees a clump is suitable;on the forestland with- out soil and water losses,initial planting density should appropriately be 4 400 trees · hm^-2 ;on the forestland with soil and water losses,poor site conditions, steep slope,initial planting density should appropriately be 6 600 trees · hm^-2 lpreservation rate of massive planting can reach more than 70%, and its stock volume increase by 38%-50% than that of the control area.