[1]刘杰钊,覃天联,傅康平,等.机械化营林对桉树人工林林木生长的影响[J].江苏林业科技,2025,52(06):16-22.[doi:10.3969/j.issn.1001-7380.2025.06.004]
　Liu Jiezhao,Qin Tianlian,Fu Kangping,et al.Effect of mechanized silviculture on the growth of Eucalyptus plantation[J].Journal of Jiangsu Forestry Science &Technology,2025,52(06):16-22.[doi:10.3969/j.issn.1001-7380.2025.06.004]
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机械化营林对桉树人工林林木生长的影响

《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第52卷
期数:
2025年06期
页码:
16-22
栏目:
试验研究
出版日期:
2025-12-31

文章信息/Info

Title:
Effect of mechanized silviculture on the growth of Eucalyptus plantation
文章编号:
1001-7380（2025）06-0016-07
作者:
刘杰钊1; 覃天联1; 傅康平1; 庞伟灿1; 李林峰1; 罗华龙1; 2; 钟平环1*
1.广西壮族自治区国有七坡林场，广西 南宁 530034；
2. 南宁桉树森林生态系统广西野外科学观测研究站，广西 南宁 530002
Author(s):
Liu Jiezhao1;  Qin Tianlian1;  Fu Kangping1;  Pang Weican1;  Li Linfeng1;  Luo Hualong1; 2;  Zhong Pinghuan1*
1.Guangxi State-owned Qipo Forest Farm, Nanning 530034, China;
2. Nanning Eucalypt Plantation Ecosystem Observation and Research Station of Guangxi, Nanning 530002, China
关键词:
机械化营林; 桉树人工林; 生长; 生产力; 生物量; 碳储量
Keywords:
Mechanized silviculture;  Eucalyptus plantation;  Growth;  Productivity;  Biomass;  Carbon storage
分类号:
S725.8；S792.39
DOI:
10.3969/j.issn.1001-7380.2025.06.004
文献标志码:
A
摘要:
桉树人工林传统营林方式存在效率低、成本高等问题，推进机械化营林是实现林业现代化转型的必由之路。为了解机械化营林对林木生长动态、生物量积累及碳汇功能的影响，该研究以1—4年生尾巨桉人工林为对象，设置机械化营林（JX）与传统人工营林（CK）2种营林措施，采用对比试验设计，测定各林分胸径、树高，并基于异速生长模型估算单株及林分生物量、碳储量与生产力，通过独立样本T检验，分析不同营林措施的生长差异。结果表明：（1）1年生时JX与CK的平均胸径无显著差异（P＞0.05），但JX平均树高显著低于CK（P＜0.05）；随着林龄的增大（2—4年生），JX平均胸径与树高均显著高于CK（P＜0.05）。（2）单木水平上，1年生时JX平均单株生物量、碳储量及生产力均显著低于CK（P＜0.05），但自第2年起则显著优于CK（P＜0.05）。JX的平均单株生物量与碳储量在2，3，4年生时分别为CK的1.67，1.24，1.43倍；其单株生产力呈现一致的变化，在对应林龄分别为CK的1.68，1.24，1.43倍。（3）林分水平上，林分物质积累与碳汇能力在1年生时无显著差异（P＞0.05），2—4年生期间，JX均持续显著高于CK（P＜0.05），其林分生物量、碳储量较CK分别提高70.2%，17.1%，62.7%；林分生产力则分别为CK的1.70，1.17和1.63倍。综上所述，机械化营林可有效促进尾巨桉人工林生长，提升生物量积累与碳汇功能，其正向效益自2年生起持续增强。该营林模式为桉树人工林的集约化经营与林业现代化提供了可行的技术途径。
Abstract:
Traditional silvicultural practices in Eucalyptus plantations are characterized by low efficiency and high costs, making the promotion of mechanized silviculture an essential pathway for modernizing the forestry. To learn the long-term effects of mechanized silviculture on tree growth dynamics, biomass accumulation, and carbon sequestration, we focused on 1- to 4-year-old Eucalyptus urophylla × E. grandis plantations. Two silvicultural treatments were established namely, mechanized silviculture (JX) and traditional manual silviculture (CK). A paired comparative design was adopted, in which diameter at breast height (DBH) and tree height were measured for each stand. Biomass, carbon storage, and productivity at both individual tree and stand levels were estimated using allometric growth models. Differences in growth between the two silvicultural approaches were analyzed using independent samples t-tests.The results indicated that:(1) In current year, there was no significant difference in mean DBH between those from JX and CK (P> 0.05), but mean tree height was significantly lower in JX than in CK (P< 0.05). From aged 2 to 4, both mean DBH and tree height were significantly higher in JX than in CK (P< 0.05).(2) At the individual tree level, mean single-tree biomass, carbon storage, and productivity were significantly lower in JX than in CK at aged (P< 0.05). However, from the second year onward, the JX treatment became significantly superior to CK (P< 0.05). The mean individual-tree biomass and carbon storage under JX at aged 2, 3, and 4 were 1.67, 1.24, and 1.43 times that of CK, respectively. Individual-tree productivity showed a consistent pattern, reaching 1.68, 1.24, and 1.43 times that of the CK level at the corresponding stand ages.(3) At the stand level, there were no significant differences in biomass accumulation or carbon sequestration capacity between treatments at aged (P> 0.05). During aged 2- to 4, the JX treatment consistently exhibited significantly higher values than CK (P< 0.05). Specifically, the stand biomass and carbon storage under JX were 70.2%, 17.1%, and 62.7% higher than those of CK, respectively; in terms of stand productivity, the JX treatment reached 1.70, 1.17, and 1.63 times the level of CK at the corresponding stand ages.In conclusion, mechanized silviculture effectively promotes tree growth, enhances biomass accumulation, and improves carbon sequestration in E. urophylla × E. grandis plantations, with these positive effects becoming increasingly pronounced from the second year onward. This silvicultural model can provide a feasible technical pathway for the intensive management and modernization of Eucalyptus plantations.

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备注/Memo

备注/Memo:
收稿日期：2025-10-11;修回日期：2025-11-08
基金项目：广西自筹经费林业科技项目“机械化营林对桉树木材生产与生态系统服务的影响研究”（2025GXZCLK 23）
作者简介：刘杰钊（1976- ），男，广西贵港人，工程师。主要从事森林培育研究。
*通信作者：钟平环（1982- ），男，广西河池人，高级工程师。主要从事森林培育研究。
更新日期/Last Update: 2026-04-07