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原始云冷杉、红松林树木生长对氮沉降的响应

王建宇 王庆贵 闫国永 姜思领 刘博奇 邢亚娟

王建宇, 王庆贵, 闫国永, 姜思领, 刘博奇, 邢亚娟. 原始云冷杉、红松林树木生长对氮沉降的响应[J]. 北京林业大学学报, 2017, 39(4): 21-28. doi: 10.13332/j.1000-1522.20160106
引用本文: 王建宇, 王庆贵, 闫国永, 姜思领, 刘博奇, 邢亚娟. 原始云冷杉、红松林树木生长对氮沉降的响应[J]. 北京林业大学学报, 2017, 39(4): 21-28. doi: 10.13332/j.1000-1522.20160106
WANG Jian-yu, WANG Qing-gui, YAN Guo-yong, JIANG Si-ling, LIU Bo-qi, XING Ya-juan. Response of tree growth to nitrogen deposition in spruce-fir-Korean pine virgin forest in Lesser Khingan Mountains in northeastern China[J]. Journal of Beijing Forestry University, 2017, 39(4): 21-28. doi: 10.13332/j.1000-1522.20160106
Citation: WANG Jian-yu, WANG Qing-gui, YAN Guo-yong, JIANG Si-ling, LIU Bo-qi, XING Ya-juan. Response of tree growth to nitrogen deposition in spruce-fir-Korean pine virgin forest in Lesser Khingan Mountains in northeastern China[J]. Journal of Beijing Forestry University, 2017, 39(4): 21-28. doi: 10.13332/j.1000-1522.20160106

原始云冷杉、红松林树木生长对氮沉降的响应

doi: 10.13332/j.1000-1522.20160106
基金项目: 

国家自然科学基金项目 31070406

国家自然科学基金项目 31370494

国家自然科学基金项目 41575137

国家自然科学基金项目 31170421

科技部基础性工作专项A类项目 2014FY110600

黑龙江省自然科学基金重点项目 ZD201406

详细信息
    作者简介:

    王建宇。主要研究方向:气候变化与生态系统响应。Email:451747159@qq.com  地址:150080  黑龙江省哈尔滨市南岗区学府路74号黑龙江大学农学楼445室

    责任作者:

    邢亚娟,博士,教授。主要研究方向:气候变化与生态系统响应。Email:xingyajuan@163.com  地址:同上

  • 中图分类号: S718.5

Response of tree growth to nitrogen deposition in spruce-fir-Korean pine virgin forest in Lesser Khingan Mountains in northeastern China

  • 摘要: 本文通过野外控制试验,设置4个梯度的施氮处理,分别为对照(CK,不加氮)、低氮(TL,5 g/(m2·a))、中氮(TM,10 g/(m2·a))、高氮(TH,15 g/(m2·a)),研究云冷杉红松林主要树种的径生长对氮沉降增加的响应。结果表明,枫桦径生长随氮添加梯度的增加出现了先促进后抑制的趋势;臭冷杉和红松径生长随氮添加梯度的增加而受到抑制,其中臭冷杉表现出明显的衰退现象甚至死亡;花楷槭则表现出较为复杂的响应,可能与该树种对不同梯度氮添加的响应机制不同有关。同时还发现,各处理、各树种的胸径大小与径生长量存在相关性,可能与树种年龄及其所处的生态位相关。研究表明,氮沉降改变树木生长速率和死亡率,可能影响地上生态系统碳库和整个生态系统碳循环。

     

  • 图  1  不同年份不同树种相对胸径生长率对各氮添加水平处理的响应

    Figure  1.  Responses of relative growth rate of DBH of different tree species to N adding treatments in varied years

    图  2  不同树种胸径大小与其相对生长率的关系

    Figure  2.  Correlations between relative growth rate of DBH and DBH amount for different tree species

    表  1  不同水平N添加处理下树种株数变化(只考虑自然死亡数变化)

    Table  1.   Changes of tree number of species under different levels of nitrogen (N) addition (only consider natural death changes)

    处理
    Treatment
    树种
    Species
    2011年株数
    Tree number of 2011
    2015年株数
    Tree number of 2015
    死亡株数
    Number of dead trees
    死亡率
    Death rate/%
    对照Control(CK)枫桦Betula costata3027310.00
    臭冷杉Abies nephrolepis363338.33
    红松Pinus koraiensis111019.09
    花楷槭Acer ukurunduense141317.14
    青楷槭Acer tegmentosum98111.11
    红皮云杉Picea koraiensis66
    低氮Low-N(TL)枫桦Betula costata1111
    臭冷杉Abies nephrolepis3627925.00
    红松Pinus koraiensis1313
    花楷槭Acer ukurunduense111019.09
    青楷槭Acer tegmentosum43125.00
    红皮云杉Picea koraiensis77
    中氮Medium-N(TM)枫桦Betula costata151416.67
    臭冷杉Abies nephrolepis49371224.49
    红松Pinus koraiensis232214.44
    花楷槭Acer ukurunduense121118.33
    青楷槭Acer tegmentosum55
    红皮云杉Picea koraiensis43125.00
    高氮High-N(TH)枫桦Betula costata1616
    臭冷杉Abies nephrolepis2217522.73
    红松Pinus koraiensis1414
    花楷槭Acer ukurunduense131217.69
    青楷槭Acer tegmentosum66
    红皮云杉Picea koraiensis33
    下载: 导出CSV

    表  2  枫桦、臭冷杉、红松和花楷槭胸径相对生长率与氮添加和年份的双因素方差分析

    Table  2.   Two-way ANOVA between relative growth rate of DBH, N addition and year for Betula platyphylla, Abies nephrolepis, Pinus koraiensis and Acer ukurunduense

    方差来源
    Sources of variation
    df均方
    Mean square
    FP
    枫桦Betula platyphylla氮添加N addition30.0085.29<0.001
    年份Year40.08457.29<0.001
    氮添加×年份N addition × year100.0128.340.004
    臭冷杉Abies nephrolepis氮添加N addition30.0001.120.349
    年份Year40.057169.27<0.001
    氮添加×年份N addition × year100.0011.710.087
    红松Pinus koraiensis氮添加N addition30.08568.37<0.001
    年份Year40.265212.08<0.001
    氮添加×年份N addition × year100.0075.49<0.001
    花楷槭Acer ukurunduense氮添加N addition30.0303.540.020
    年份Year40.14116.61<0.001
    氮添加×年份N addition × year100.0364.24<0.001
    注:P<0.05表示处理之间差异显著。Note: P<0.05 represents significant difference among treatments.
    下载: 导出CSV
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  • 收稿日期:  2016-09-12
  • 修回日期:  2016-10-20
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