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为研究雷林1号桉作为短轮伐期人工林经营的适宜密度,1984年在海南省东部滨海丘陵台地区采用1.0m×1.0m、1.0m×1.5m、1.0m×2.0m和1.5m×1.5m等4种密度进行试验研究。经9年观测,结果表明:前两种密度经营适于短轮伐期薪材林,首采年龄为4~5年;若经营短轮伐期用材林,宜采用1.5m×1.5m或1.0m×2.0m的密度,植后8年左右采收。雷林1号桉(Eucalyptus leizhou No.1)是雷州林业局在生产中选育成功的天然杂交种,已在华南平原台地和低山丘陵地区大面积发展,造林面积已达20余万hm~2。作为用材林经营已有成套经营技术,然而作为短轮伐期人工林(薪材林、木片或浆粕林等)经营,则缺乏经验和技术。为此,1984年在海南省滨海台地区开展了不同密度的造林试验。经9年观测研究,结果分薪材林和用材林两部分论述。
In order to study the suitable density of Euculin 1 as short-rotation plantation, in 1984, 1.0m × 1.0m, 1.0m × 1.5m, 1.0m × 2.0m and 1.5m × 1.5m and other four kinds of density for experimental study. After 9 years of observation, the results showed that: The first two kinds of density management suitable for short-rotation fuelwood, the first mining age of 4 to 5 years; if the management of short rotation timber, should adopt 1.5m × 1.5m or 1.0m × 2.0m density, 8 years after harvesting. Eucalyptus leizhou No.1 is a natural hybrid breed successfully developed by Leizhou Forestry Bureau. It has been extensively developed in the plains and hilly areas of South China Plain, and afforestation area has reached more than 200,000 hm ~ 2. As a timber plantation, there is a lack of experience and technology to operate existing sets of management techniques. However, management as a short rotation plantation (fuelwood, woodchips or pulpwood, etc.) lacks experience and technology. To this end, in 1984 in Hainan Binhai Taiwan conducted a different density of afforestation experiments. After 9 years of observational studies, the results were divided into two parts of timber and timber forest.