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接种蚯蚓和添加凋落物对油松人工林土壤养分和微生物量及活性的影响

陈平 赵博 杨璐 赵秀海 张春雨 闫子超

陈平, 赵博, 杨璐, 赵秀海, 张春雨, 闫子超. 接种蚯蚓和添加凋落物对油松人工林土壤养分和微生物量及活性的影响[J]. 北京林业大学学报, 2018, 40(6): 63-71. doi: 10.13332/j.1000-1522.20180101
引用本文: 陈平, 赵博, 杨璐, 赵秀海, 张春雨, 闫子超. 接种蚯蚓和添加凋落物对油松人工林土壤养分和微生物量及活性的影响[J]. 北京林业大学学报, 2018, 40(6): 63-71. doi: 10.13332/j.1000-1522.20180101
Chen Ping, Zhao Bo, Yang Lu, Zhao Xiuhai, Zhang Chunyu, Yan Zichao. Effects of earthworm and litter application on soil nutrients and soil microbial biomass and activities in Pinus tabuliformis plantation[J]. Journal of Beijing Forestry University, 2018, 40(6): 63-71. doi: 10.13332/j.1000-1522.20180101
Citation: Chen Ping, Zhao Bo, Yang Lu, Zhao Xiuhai, Zhang Chunyu, Yan Zichao. Effects of earthworm and litter application on soil nutrients and soil microbial biomass and activities in Pinus tabuliformis plantation[J]. Journal of Beijing Forestry University, 2018, 40(6): 63-71. doi: 10.13332/j.1000-1522.20180101

接种蚯蚓和添加凋落物对油松人工林土壤养分和微生物量及活性的影响

doi: 10.13332/j.1000-1522.20180101
基金项目: 

国家自然科学基金项目 31340022

详细信息
    作者简介:

    陈平。主要研究方向:森林生态学。Email: 877098608@qq.com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,博士,教授。主要研究方向:森林生态学。Email: zhaoxh@bjfu.edu.com 地址:同上

  • 中图分类号: S714.3; S791.254

Effects of earthworm and litter application on soil nutrients and soil microbial biomass and activities in Pinus tabuliformis plantation

  • 摘要: 目的森林凋落物在森林地上和地下养分传输过程中发挥着不可替代的作用, 大型土壤动物蚯蚓可以通过取食、消化、排泄、掘穴等活动影响凋落物的分解, 从而对土壤养分和微生物产生影响。本文研究了凋落物添加和威廉环毛蚓接种对油松人工林土壤pH、有机碳(SOC)、全氮(STN)、微生物生物量碳(SMBC)、微生物熵(qMB)的影响。方法本研究通过室内培养实验设置4种处理:(1)对照(S); (2)添加油松叶凋落物(SP); (3)接种蚯蚓(SE); (4)接种蚯蚓+油松凋落物(SPE)4种处理, 分别在培养后第7、14、21、28、42、56天进行土壤样品取样。结果结果表明:在整个培养期, SE处理下土壤pH均比同期S处理高, 但没有达到显著水平(P>0.05);SPE处理土壤pH均比同期S处理高, 但没有达到显著水平(P>0.05);无论是否添加叶凋落物, 在各个培养期接种蚯蚓都对SOC和STN无显著影响(P>0.05)。到培养结束时, SE处理使SMBC和qMB分别降低了10.8%和10.9%;在各个取样期, SP处理土壤的SMBC和qMB较对照处理有显著提高(P < 0.05), 到培养结束时, SP处理使SMBC和qMB分别升高了52.3%和33.6%;在各个取样期, SPE处理和SP处理土壤的SMBC和qMB差异显著, 到培养结束时, 与SP处理相比, SPE处理使SMBC和qMB分别升高了19.5%和19.3%(P < 0.05)。结论本研究表明, 添加凋落物可以提高土壤有机碳向微生物量碳的转化效率, 且在凋落物中添加蚯蚓可进一步促进这种作用。

     

  • 图  1  不同处理土壤微生物生物量碳的动态变化

    不同小写字母表示不同处理差异显著(P < 0.05)。S.不接种蚯蚓不添加油松凋落物;SP.添加油松凋落物;SE.接种蚯蚓;SPE.添加油松凋落物+接种蚯蚓。下同。

    Figure  1.  Dynamics of SMBC under different treatments

    Different small letters indicate significant difference among different treatments (P < 0.05). S, soil without earthworms and Pinus tabuliformis litter; SP, soil only with Pinus tabuliformis litter; SE, soil only with earthworms; SPE, soil with earthworms and Pinus tabuliformis litter. The same below.

    图  2  不同处理微生物熵的动态变化

    Figure  2.  Dynamics of qMB under different treatments

    表  1  不同处理蚯蚓生物量的变化(平均值±标准差)

    Table  1.   Dynamics of earthworm biomass under different treatments (mean±sd)

    g
    实验处理
    Treatment
    蚯蚓生物量Earthworm biomass
    第1周
    First week
    第2周
    Second week
    第3周
    Third week
    第4周
    Fourth week
    第6周
    Sixth week
    第8周
    Eighth week
    平均值
    Mean
    SE +(0.23±0.02) -(0.46±1.01) -(0.26±0.07) -(0.66±0.63) -(0.90±0.31) -(1.32±1.16) 2.79±0.52
    SPE +(0.70±0.03) +(0.63±0.13) +(0.51±0.82) +(0.43±0.23) +(0.20±0.19) -(0.22±0.38) 3.77±0.36
    下载: 导出CSV

    表  2  不同处理土壤pH值的变化(平均值±标准差)

    Table  2.   Dynamics of soil pH under different treatments (mean±sd)

    实验处理Treatment 土壤pH值Soil pH value
    第1周
    First week
    第2周
    Second week
    第3周
    Third week
    第4周
    Fourth week
    第6周
    Sixth week
    第8周
    Eighth week
    平均值
    Mean
    S 8.17±0.11a 8.19±0.09a 8.18±0.03a 8.17±0.03a 8.19±0.01a 8.19±0.01a 8.18±0.01a
    SP 8.18±0.10a 8.20±0.01a 8.20±0.02a 8.19±0.01a 8.20±0.02a 8.19±0.04a 8.19±0.01a
    SE 8.19±0.04a 8.20±0.02a 8.23±0.05a 8.22±0.05a 8.23±0.04a 8.23±0.06a 8.22±0.02a
    SPE 8.19±0.06a 8.23±0.05a 8.25±0.06a 8.25±0.03a 8.30±0.11a 8.35±0.04a 8.26±0.06a
    注:表中同一列不同小写字母代表不同处理下土壤pH值差异显著(P < 0.05)。S.不施加油松凋落物不接种蚯蚓;SP.添加油松凋落物;SE.接种蚯蚓;SPE.接种蚯蚓+油松凋落物。下同。Notes: different lowercase letters indicate significant difference in pH value between different treatments (P < 0.05). S, soil without earthworms and Pinus tabuliformis litter; SP, soil only with Pinus tabuliformis litter; SE, soil only with earthworms; SPE, soil with earthworms and Pinus tabuliformis litter. The same below.
    下载: 导出CSV

    表  3  不同处理土壤有机碳的变化(平均值±标准差)

    Table  3.   Dynamics of soil organic carbon under different treatments (mean±sd)

    g·kg-1
    试验处理Treatment 土壤有机碳Soil organic carbon
    第1周
    First week
    第2周
    Second week
    第3周
    Third week
    第4周
    Fourth week
    第6周
    Sixth week
    第8周
    Eighth week
    平均值
    Mean
    S 14.58±0.12a 14.52±0.04a 14.52±0.05a 14.54±0.01a 14.53±0.03a 14.54±0.01a 14.59±0.02a
    SP 14.60±0.29a 14.66±0.06a 14.69±0.02a 14.96±0.05b 15.70±0.05b 16.55±0.08b 15.19±0.78a
    SE 14.56±0.03a 14.53±0.69a 14.56±0.14a 14.57±0.02a 14.53±0.03a 14.54±0.01a 14.55±0.02a
    SPE 14.59±0.21a 14.68±0.02a 14.73±0.05a 14.98±0.01b 15.73±0.04b 16.64±0.13b 15.23±0.02a
    注:表中同一列不同小写字母代表不同处理下土壤有机碳值差异显著(P < 0.05)。Notes: different lowercase letters indicate significant difference in SOC value among different treatments (P < 0.05).
    下载: 导出CSV

    表  4  不同处理土壤全氮的变化(平均值±标准差)

    Table  4.   Dynamics of soil total nitrogen under different treatments (mean±sd)

    g·kg-1
    试验处理Treatment 土壤全氮Soil total nitrogen
    第1周
    First week
    第2周
    Second week
    第3周
    Third week
    第4周
    Fourth week
    第6周
    Sixth week
    第8周
    Eighth week
    平均数
    Mean
    S 1.31±0.06a 1.32±0.05a 1.32±0.05a 1.32±0.07a 1.33±0.05a 1.31±0.02a 1.31±0.01a
    SP 1.32±0.04a 1.33±0.03a 1.34±0.04a 1.36±0.06a 1.38±0.07a 1.42±0.03b 1.35±0.04a
    SE 1.32±0.03a 1.33±0.09a 1.34±0.07a 1.34±0.03a 1.34±0.07a 1.35±0.02a 1.32±0.04a
    SPE 1.32±0.08a 1.33±0.06a 1.35±0.03a 1.36±0.02a 1.39±0.04a 1.43±0.02b 1.36±0.04a
    注:表中同一列不同小写字母代表不同处理下土壤全氮值差异显著(P < 0.05)。Notes: different lowercase letters indicate significant difference in STN value among different treatments (P < 0.05).
    下载: 导出CSV

    表  5  不同处理土壤微生物生物量和微生物熵均值(平均值±标准差)

    Table  5.   Different treatment mean of SMBC and qMB(mean±sd)

    处理
    Treatment
    土壤微生物生物量碳
    SMBC/(mg·kg -1)
    微生物熵
    qMB/%
    S 215.67±28.96a 1.48±0.20a
    SP 284.93±6.80b 1.88±0.06b
    SE 222.09±46.25a 1.54±0.33a
    SPE 349.28±11.65c 2.30±0.09c
    注:表中同一列不同小写字母代表不同处理下土壤微生物生物量碳、微生物熵差异显著(P < 0.05)。Notes: different lowercase letters indicate significant difference in SMBC and qMB among different treatments (P < 0.05).
    下载: 导出CSV
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  • 收稿日期:  2018-03-19
  • 修回日期:  2018-05-07
  • 刊出日期:  2018-06-01

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