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中国农学通报 ›› 2017, Vol. 33 ›› Issue (3): 94-98.doi: 10.11924/j.issn.1000-6850.casb16030159

• 林学 园艺 园林 • 上一篇    下一篇

桂东地区巨尾桉与大叶栎混交造林试验

张帅,陈翠湖   

  1. 梧州市林业技术推广站 广西梧州,梧州市林业技术推广站 广西梧州
  • 收稿日期:2016-03-21 修回日期:2017-01-05 接受日期:2016-06-20 出版日期:2017-02-10 发布日期:2017-02-10
  • 通讯作者: 张帅
  • 基金资助:
    梧州市科学研究与技术开发计划项目(200501007)。

Mixed Planting of Eucalyptus grandis× E. urophylla and Castanopsis fissa in Eastern Guangxi

  • Received:2016-03-21 Revised:2017-01-05 Accepted:2016-06-20 Online:2017-02-10 Published:2017-02-10

摘要: 在桂东地区研究大叶栎与桉树混交造林以期探索生态、惠民的桉树新造林模式。研究结果表明:(1)混交林桉树生长较大叶栎快,桉树、大叶栎单株生长较纯林快;(2)同密度混交林明显比桉树纯林土壤理化性质好,高密度混交林比桉树纯林土壤物理性质好,土壤养分相差不大;(3)桉树×大叶栎1:1混交、株数密度2500 株/hm2林分产值高,土壤地力可以得到维持,株数调减,适当增加桉树比例,种植经济效益较好。

关键词: 晚稻, 晚稻, 施氮量, 栽插密度, 产量, 氮肥利用率

Abstract: The mixed planting of Eucalyptus grandis × E. urophylla and Castanopsis fissa was studied for exploring new ecological and economic model. The results showed that: (1) E. grandis× E. urophylla grew faster than C. fissa, and the mixed stand of E. grandis × E. urophylla and C. fissa grew faster than the pure forest; (2) the soil physical and chemical properties of the mixed planting was obviously better than that of the pure forest with the same density, the physical properties of the high density mixed stand was better than that of the pure forest, the chemical properties of the mixed planting was similar to that of the pure forest; (3) the mixed ratio of 1:1 and the density of 2500 plants/hm2 was adaptive, if the density was reduced, more E. grandis× E. urophylla should be planted than C. fissa