广西国有高峰林场桉树高产种植模式研究  

Research on High Yield Planting Mode of Eucalyptus in Guangxi State-Owned Gaofeng Forest Farm

作　　者：梁祺皆 谢鸿琴 Liang Qijie;Xie Hongqin(Guangxi Zhuang Autonomous Region State-owned Gaofeng Forest Farm,Nanning 530002,Guangxi,China)

机构地区：[1]广西壮族自治区国有高峰林场,广西南宁530002

出　　处：《绿色科技》2024年第21期134-139,共6页Journal of Green Science and Technology

摘　　要：旨在探究广西国有高峰林场桉树高产种植模式,于2022年秋季在广西国有高峰林场分别设置了不同坡向和坡位的地形选择试验、3种不同密度的种植密度试验,4种施肥方案的施肥试验以及3种混交模式的混交模式选择试验。结果表明:(1)半阳坡和上坡位的桉树生长最佳,树高和胸径均显著高于其他处理(P<0.05)。(2)83株/667m^(2)密度下桉树胸径最大,显著大于其他密度(P<0.05),但树高差异不显著。(3)有机肥+精准配方肥处理效果最佳,桉树平均树高和胸径均显著高于其他处理(P<0.05)。(4)桉树与刨花润楠或红椎混交模式下的桉树树高和胸径均显著高于桉树纯林(P<0.05)。指出了广西国有高峰林场桉树高产种植模式应选择半阳坡或上坡位,采用中等种植密度(111株/667m^(2)),并使用有机肥配合精准配方肥的施肥方案;此外,桉树与刨花润楠或红椎混交可显著提高桉树生长量,在营造混交林时可考虑使用刨花润楠或红椎。This study aims to explore the high-yield planting mode of Eucalyptus trees in Guangxi State-Owned Gaofeng Forest Farm.In the autumn of 2022,terrain selection experiments with different slope orientations and positions,planting density experiments with three different densities,fertilization experiments with four fertilization schemes,and mixed mode selection experiments with three mixed modes were conducted at the State-Owned Gaofeng Forest Farm in Guangxi.The results showed that:①the growth of Eucalyptus trees on half sunny slope and upper slope was the best,and tree height and DBH were significantly higher than other treatments(P<0.05);②the diameter at breast height of Eucalyptus trees was the largest at a density of 83 plants/667m^(2),significantly larger than other densities(P<0.05),but the difference in tree height was not significant;③the combination of organic fertilizer and precision formula fertilizer showed the best effect,with significantly higher average tree height and breast height diameter of Eucalyptus trees compared to other treatments(P<0.05);④the height and diameter at breast height of Eucalyptus trees in the mixed mode with Machilus pauhoi Kaneh.or Castanopsis hystrix Hook.were significantly higher than those in the pure Eucalyptus forest(P<0.05).Research has shown that the high-yield planting mode of Eucalyptus trees in Guangxi's State-Owned Gaofeng Forest Farm should choose semi sunny slopes or uphill positions,adopt a medium planting density(111 plants/667m^(2)),and use a fertilization scheme of organic fertilizer combined with precision formula fertilizer;in addition,the mixed use of Eucalyptus and Machilus pauhoi Kaneh.or Castanopsis hystrix Hook.can significantly increase the growth of Eucalyptus.When creating mixed forests,the use of Machilus pauhoi Kaneh.or Castanopsis hystrix Hook.can be considered.

关 键 词：广西国有高峰林场 桉树 高产种植模式 地形选择 种植密度 施肥方案 

分 类 号：S762[农业科学—森林保护学]