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雷州林业局从1954年建场以来,营造人工林78.1万亩。其中桉树人工林58.7万亩,总面积75.1%。在营林工作中,对桉树人工林初植密度问题不断地进行了探讨。生产实践采用的造林密度大致经历由密到疏,再由疏到适当密植的过程,植点配置方式也从正方形到长方形(即宽行密株或双龙出海等形式)。密度和植点配置方式的变化,反映了营林措施的改进。五十年代建场初期,为了在短期内绿化雷州,广大林业职工积极响应毛主席“绿化祖国”的号召,战天斗地,营造桉树人工林33万亩,初期造林密度比较单一,大部
Leizhou Forestry Bureau since 1954 to build a field, to create 781,000 mu of plantations. Among them, 58.7 mu of eucalyptus plantations have a total area of 75.1%. In the work of forest management, the eucalyptus plantation planting density has been continuously explored. The planting density used in production practice generally goes through the process of dense to sparse, then sparse to appropriate dense planting, and the arrangement of planting sites is also from square to rectangle (that is, wide-bodied strains or Ssangyong sea and other forms). Changes in density and site allocation reflect the improvement of silvicultural measures. In the early 1950s, in order to green Leizhou in the short term, the vast number of forestry workers responded positively to Chairman Mao’s call for “greening the motherland,” fighting 330,000 mu of eucalypt plantation forests in the battle of the heavens,