摘要
在39hm^2林地上采用人工促进天然更新方法成功地培育出阔叶树纸浆速生丰产林,经11年的试验研究总结出一整套技术措施体系,试验研究结果表明:林分6年便达数量成熟龄,其材积平均生长量达16.6m^3·hm^（-2）·a^（-1）;8年达纸浆材工艺成熟龄,纸浆工艺材材积平均生长量为13.8m^3·hm^（-2）·a^（-1）;综合确定其轮伐期为8年;8年总投资为270元·hm^（-2）,平均单位材积投资2.13元·m^（-3）,投资少、效益高;由于林分密度大,树干通直、尖削度小、枝下高高,林分质量较高。
The fast-growing and high-yield broad-leaf pulp-wood forest has been successfully cultivated by means of artificially stimulating natural regeneration on 39hm2 forest-land.A set of technical measures have been created by 11-year experimental studies. The main results are as follows, 1) The quantitative mature age of this kind of stand is 6, with the mean volume increment being 16.6m3·hm-2·a-1; 2) The technical cutting age is 8, with the mean volume increment of technical pulpwood being 13.8m3·hm-2·a-1 ; 3) The rotation is of 8 years; 4) The quality of the stand is better becaused the stand density is more than 10,000 trees hm-2; 5) The total investment for 8 years reaches only 270 yuan hm-2, with the mean investment being 2.13 yuan hm-2,the cost being less but the efficiency greater; and 6) The broad-leaf forest, which is composed of many species and storey, can provide much more ecological effects.
出处
《福建林学院学报》
CSCD
1992年第4期430-436,共7页
Journal of Fujian College of Forestry
关键词
人工更新
阔叶树
纸浆林
造林
artificially stimulating natural regeneration,pulpwood forest,broadleaf forest, fast-growing and high-yield forest
