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采伐对蛟河阔叶红松混交林土壤呼吸的影响

左强 何怀江 张春雨 赵秀海 张君 李金功

左强, 何怀江, 张春雨, 赵秀海, 张君, 李金功. 采伐对蛟河阔叶红松混交林土壤呼吸的影响[J]. 北京林业大学学报, 2016, 38(4): 71-76. doi: 10.13332/j.1000-1522.20160055
引用本文: 左强, 何怀江, 张春雨, 赵秀海, 张君, 李金功. 采伐对蛟河阔叶红松混交林土壤呼吸的影响[J]. 北京林业大学学报, 2016, 38(4): 71-76. doi: 10.13332/j.1000-1522.20160055
ZUO Qiang, HE Huai-jiang, ZHANG Chun-yu, ZHAO Xiu-hai, ZHANG Jun, LI Jin-gong. Effects of cutting on soil respiration in a mixed broadleaf-Korean pine forest in western foothill of Changbai Mountain, northeast China[J]. Journal of Beijing Forestry University, 2016, 38(4): 71-76. doi: 10.13332/j.1000-1522.20160055
Citation: ZUO Qiang, HE Huai-jiang, ZHANG Chun-yu, ZHAO Xiu-hai, ZHANG Jun, LI Jin-gong. Effects of cutting on soil respiration in a mixed broadleaf-Korean pine forest in western foothill of Changbai Mountain, northeast China[J]. Journal of Beijing Forestry University, 2016, 38(4): 71-76. doi: 10.13332/j.1000-1522.20160055

采伐对蛟河阔叶红松混交林土壤呼吸的影响

doi: 10.13332/j.1000-1522.20160055
基金项目: 

“十二五”国家科技支撑计划项目(2012BAD22B0203)

详细信息
    作者简介:

    左强。主要研究方向:干扰与恢复生态。Email : zuoqiang@bjfu.edu.cn 地址:100083 北京市海淀区清华东路35号北京林业大学林学院。
    责任作者: 赵秀海,教授,博士生导师。主要研究方向:干扰与恢复生态。Email : zhaoxh@bjfu.edu.cn 地址:同上

    左强。主要研究方向:干扰与恢复生态。Email : zuoqiang@bjfu.edu.cn 地址:100083 北京市海淀区清华东路35号北京林业大学林学院。
    责任作者: 赵秀海,教授,博士生导师。主要研究方向:干扰与恢复生态。Email : zhaoxh@bjfu.edu.cn 地址:同上

Effects of cutting on soil respiration in a mixed broadleaf-Korean pine forest in western foothill of Changbai Mountain, northeast China

  • 摘要: 为分析不同采伐强度下土壤呼吸速率的差异及土壤温湿度对土壤呼吸速率的影响,于2013—2015年5—10月,在吉林省蛟河红松阔叶混交林地表无雪期间,使用LI-8100土壤CO2全自动通量测量仪器测量定不同采伐强度土壤呼吸速率及土深5 cm处温、湿度,采伐强度分别为:对照0%、轻度采伐15%、中度采伐25%、重度采伐50%。结果表明:采伐使土壤温度增加、土壤湿度降低。不同采伐强度处理样地的土壤呼吸速率值均显著大于对照样地,在研究的第1年与第2年,轻度采伐与重度采伐样地的土壤呼吸速率之间无显著差异(P>, 0.05),而中度采伐样地的土壤呼吸速率要显著高于轻度采伐处理和重度采伐处理的土壤呼吸速率(P<, 0.05)。在研究的第3年各采伐强度处理的土壤呼吸速率之间差异均不显著(P>, 0.05)。不同采伐强度样地的土壤呼吸与土壤温度之间均呈显著指数相关(P<, 0.001),但与土壤湿度之间相关关系不显著(P>, 0.05)。土壤温度和土壤湿度的双变量复合模型能够更好地解释土壤呼吸速率变化,决定系数R值为45%~74%。各采伐强度处理的土壤呼吸的温度敏感系数Q10值表现为中度采伐>, 重度采伐>, 轻度采伐=对照。在实践生产中,为减小采伐后林地土壤CO2的呼吸量,应采用低强度的采伐作业。

     

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出版历程
  • 收稿日期:  2016-01-20
  • 刊出日期:  2016-04-30

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