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桉属植物是澳大利亚景观中的主要的乡土植物类群。在欧洲人定居澳大利亚以后,新南威尔士州台地的桉树急剧减少,桉树更新停滞,景观生态系统很难恢复到原初状态。本文介绍了桉树和乡土灌木减少的历史背景,分析了在这一地区幼苗更新减少的原因主要是由于开垦、放牧、火烧、外来物种竞争、枯萎、昆虫和干旱等,总结了桉树更新的可能条件,如幼苗存活的合适条件、充足的种子供应、避免捕食、适当的萌发条件、无放牧环境、机械处理、杂草控制、火烧系统和疾病控制等,借以建议在该地区应怎样保护和促进桉树的更新。参26。
Eucalyptus is a major indigenous flora in the Australian landscape. After Europeans settled in Australia, eucalypts in New South Wales terrain declined sharply, eucalyptus renewal stagnated, landscape ecosystem is difficult to return to its original state. This paper presents the historical background of eucalypts and native shrub reduction. It is analyzed that the reasons for the decrease of seedling renewal in this area are mainly the possible conditions of eucalyptus regeneration due to land reclamation, grazing, fire, alien species competition, wilt, insects and drought , Such as the appropriate conditions for seedling survival, adequate seed supply, avoidance of predation, proper germination conditions, grazing environment, mechanical treatment, weed control, fire system and disease control, to suggest how the eucalyptus should be conserved and promoted in the area Update. Participation 26.