摘要
根据我国目前桉树人工林成片造林的实际情况，将桉树造林地分为Ａ类：海滨平原、台地、丘陵和小盘地；Ｂ类：台地、中低山丘陵；Ｃ类：云贵高原三种类型。对其中的造林整地方式进行分析比较后，选择出：Ａ类以机械整地为主，在各种机械整地方式中，拔桩裂土的投资额合理，经济效益较好；人工拔桩后再行机械全垦，开沟造林是人工整地和机械整地结合的模式，投资较少，经济效益较高。Ｂ类地区人工全垦能获得较大生长量；大穴（８０ｃｍ×８０ｃｍ×５０ｃｍ）整地同样可以获得高水平生长量。
The sites are divided into three types such as A, B and C according to the distribution of eucalypt plantations in Southern China. Type A includes coastal flatland, tableland and hilly land; Type B includes tableland, hill and low mountain; Type C is Yunnan and Guizhou plateau.More better methods of soil preparation are selected after comparing and analyzing the data on the sample plots of A, B and C sites. Tractor ploughing overall soil preparation is the main soil preparation method in type A; the tractor ploughing strip soil preparation after clearing stumps by tractor is a better method because of its reasonable cost and better benefit comparing to other methods; and tractor ploughing overall soil preparation after clearing stumps by hands is the best method because of its low cost and great economic effect.Spot soil preparation such as digging 80 cm×80 cm×50 cm holes could also obtain high yield in type A and type B.Ditch soil preparation is the selection for type C, and 60 cm×60 cm is the best ditch size in this experiment.
出处
《林业科学研究》
CSCD
北大核心
1997年第3期309-315,共7页
Forest Research
基金
"九五"国家攻关专题
关键词
桉树
整地方式
造林地类型
Eucalyptus spp. site preparation site types
