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植物研究 ›› 2014, Vol. 34 ›› Issue (4): 529-536.doi: 10.7525/j.issn.1673-5102.2014.04.017

• 论文 • 上一篇    下一篇

透光抚育对长白山“栽针保阔”红松林植被碳储量影响

牟长城1;庄宸1;韩阳瑞1;张晓亮1;佟静秋1;程家友2;曹万亮3   

  1. 1.东北林业大学生态研究中心,哈尔滨 150040;2.吉林省白河林业局,延吉 133613;3.吉林省敦化林业局,延吉 133700
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2014-07-20 发布日期:2014-07-20
  • 基金资助:
     

Effect of Liberation Cutting on the Vegetation Carbon Storage of Korean Pine Forests by Planting Conifer and Reserving Broad-leaved Tree in Changbai Mountains of China

MU Chang-Cheng;ZHUANG Chen;HAN Yang-Rui;ZHANG Xiao-Liang;TONG Jing-Qiu;CHENG Jia-You;CAO Wan-Liang   

  1. 1.Center for Ecological Research,Northeast Forestry University,Harbin 150040;2.Baihe Forestry Bureau,Jilin Province,Yanji 133613;3. Dunhua Forestry Bureau,Jilin Province,Yanji 133700
  • Received:1900-01-01 Revised:1900-01-01 Online:2014-07-20 Published:2014-07-20
  • Supported by:
     

摘要: 运用采伐试验与相对生长方程法,设定5个处理,分别为:未透光(对照)、轻度择伐(25%)、中度择伐(50%)、强度择伐(75%)、全透光(100%)(抚育强度指蓄积量采伐比例)研究了透光抚育对长白山“栽针保阔”红松林的植被碳储量。结果表明:①透光抚育使其植被生物量(154.86±9.84~217.56±4.90 t·hm-2)显著降低,轻、中、强度择伐降低幅度相对较大且相近(21.1%~28.8%),全透光降低幅度相对较小(12.5%);②透光抚育对其乔木层(404.53±1.28~479.64±7.22 g·kg-1)、灌木层(454.87±9.82~474.52±5.82 g·kg-1)、草本层(401.24±8.65~419.52±7.98 g·kg-1)和凋落物层(348.91±13.21~376.03±12.36 g·kg-1)碳含量的影响并不同,降低了红松、家榆、紫椴树干碳含量(2.3%~6.1%,P<0.05)和蒙古栎、紫椴与家榆树枝与树叶碳含量(2.6%~12.7%,P<0.05)及灌木层碳含量(3.5%~3.6%,P<0.05),但提高了红松树枝与树叶碳含量(5.4%~7.7%,P<0.05);③透光抚育使其植被碳储量(68.38±1.78~97.40±2.98 t·C/hm-2)显著降低,轻、中、强度择伐降低幅度相对较大且相近(22.5%~29.8%),全透光降低幅度最小(16.1%)。因此,从维持其植被碳库考虑,对长白山“栽针保阔”红松林采取中低强度择伐或小范围上层全透光方式比较适宜。

关键词: 长白山, &ldquo, 栽针保阔&rdquo, 红松林, 植被碳储量, 透光抚育

Abstract: The effects of liberation cutting on the vegetation carbon storage of the 33-year-old Korean pine forests by planting conifer and reserving broad-leaved tree was studied by using crown thinning control test method in Changbai Mountains of China. Five levels of cutting intensities were taken, which were non-selective cutting(control), low-intensity selective cutting(25%), moderate-intensity selective cutting(50%), heavy-intensity selective cutting(75%) and clear cutting(100%)(cutting intensity refer to volume percent). The results showed that: (1)Liberation cutting made its vegetation biomass (154.86±9.84-217.56±4.90 t·hm-2) significantly decrease by 12.5%-28.8%(P<0.05), in which low-intensity, moderate-intensity and heavy-intensity selective cutting decreased by 21.1%-28.8%, while, clear cutting only decreased by 12.5%; (2)Liberation cutting had different effects on the carbon concentration of tree layer (404.53±1.28-479.64±7.22 g·kg-1), shrub layer (454.87±9.82-474.52±5.82 g·kg-1), herb layer(401.24±8.65-419.52±7.98 g·kg-1) and litter fall layer (348.91±13.21-376.03±12.36 g·kg-1) of the Korean pine forests. The carbon concentrations of trunk from Pinus koraiensis, Ulmus pumila and Tilia amurensis significantly decreased by 2.3%-6.1% (P<0.05), the carbon concentrations of branches and leaves from Quercus mongolica, Ulmus pumila and Tilia amurensis significantly decreased by 2.6%-12.7%(P<0.05), the carbon concentration of shrub layer significantly decreased by 3.5%-3.6%(P<0.05), but the carbon concentrations of branches and leaves from Pinus koraiensis significantly increased by 5.4%-7.7%(P<0.05); (3)Liberation cutting made its vegetation carbon storage (68.38±1.78-97.40±2.98 t·C·hm-2) significantly decrease by 16.1%-29.8%(P<0.05), in which low-intensity, moderate-intensity and heavy-intensity selective cutting decreased by 22.5%-29.8%, while, clear cutting only decreased by 16.1%. Therefore, in order to sequestrate carbon, low-intensity, moderate-intensity selective cutting and small-scale clear cutting should be taken for the Korean pine forests by planting conifer and reserving broad-leaved tree.

Key words: Changbai Mountains, korean pine forests with planting conifer and reserving broad-leaved tree, vegetation carbon storage, liberation cutting

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