刚果12号桉也是速生阳性造林树种,在疏松深厚的红壤,生长良好。这是人们对桉树长期生产实践的认识。因此,目前桉树造林和抚育,都采用较高的技术措施。如机耕、人工全垦、撩壕或挖大穴造林。现在我场每年种3000—4000亩桉树林也主要采用了撩壕整地,一两年内已经郁闭成林,取得了立杆见影的效果。但,是不是还可以速生更速生?仅从整地方面来说,究竟哪种整地方式造林和抚育比较好?目前所采用的全垦、撩壕和大穴整地的一般的深度,从其速生特性、用工量和成本的要 Congo 12 Eucalyptus is also a fast-growing positive afforestation species, in the deep red soil loose, good growth. This is a recognition of long-standing eucalyptus production practices. Therefore, the current eucalyptus afforestation and tending, have adopted higher technical measures. Such as plowing, artificial all Ken, tearing trench or dig large afforestation. Now my field every year 3000-4000 acres of eucalyptus forest is also mainly used trenches site preparation, a year or two has closed forest, and achieved immediate results. However, is it right? You can also be quicker and faster? Only from the area of ​​preparation, what kind of preparation for afforestation and tending land preparation is better? At present, the total depth of reclamation, trenches and large site preparation, from its fast-growing features, The amount of labor and cost to be