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模拟氮沉降和磷添加对杉木林土壤呼吸的影响

林雨萱 哀建国 宋新章 李全 张君波

林雨萱, 哀建国, 宋新章, 李全, 张君波. 模拟氮沉降和磷添加对杉木林土壤呼吸的影响[J]. 浙江农林大学学报. doi: 10.11833/j.issn.2095-0756.20200326
引用本文: 林雨萱, 哀建国, 宋新章, 李全, 张君波. 模拟氮沉降和磷添加对杉木林土壤呼吸的影响[J]. 浙江农林大学学报. doi: 10.11833/j.issn.2095-0756.20200326
LIN Yuxuan, AI Jianguo, SONG Xinzhang, LI Quan, ZHANG Junbo. Effects of simulated nitrogen deposition and phosphorus addition on soil respiration in Chinese fir forest[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20200326
Citation: LIN Yuxuan, AI Jianguo, SONG Xinzhang, LI Quan, ZHANG Junbo. Effects of simulated nitrogen deposition and phosphorus addition on soil respiration in Chinese fir forest[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20200326

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模拟氮沉降和磷添加对杉木林土壤呼吸的影响

doi: 10.11833/j.issn.2095-0756.20200326
基金项目: “十三五”国家重点研发计划项目(2016YFD0600201)
详细信息
    作者简介: 林雨萱(ORCID: 0000-0001-8019-7146),从事植物生态学和植物资源开发利用研究。E-mail: linyuxuan11@163.com
    通信作者: 哀建国(ORCID: 0000-0002-7736-1301),副教授,博士,从事植物生态学和植物资源开发利用研究。E-mail: 1572783600@qq.com
  • 中图分类号: S714

Effects of simulated nitrogen deposition and phosphorus addition on soil respiration in Chinese fir forest

  • 摘要:   目的  模拟氮沉降和磷添加对杉木Cunninghamia lanceolata林土壤呼吸的影响,对调控杉木林土壤碳循环提供科学依据。  方法  以10年生杉木林为研究对象,共设置9个处理水平[对照(ck)、低氮(N30:30 kg·hm−2·a−1)、高氮(N60:60 kg·hm−2·a−1)、低磷(P20:20 mg·kg−1)、高磷(P40:40 mg·kg−1)、低氮低磷(N30+P20)、低氮高磷(N30+P40)、高氮低磷(N60+P20)、高氮高磷(N60+P40)],探讨了大气氮沉降和磷添加对杉木林土壤呼吸的影响。  结果  施加氮磷没有改变杉木林土壤呼吸的季节性变化,单独施氮促进了杉木林土壤呼吸作用。在高氮水平下(N60)对土壤呼吸的促进最显著(P<0.05);单独施磷促进了杉木林土壤呼吸作用,高磷水平(P40)对土壤呼吸的促进最显著(P<0.05);氮磷复合作用下低氮高磷(N30+P40)对杉木林土壤呼吸的促进作用最为显著(P<0.05)。相关分析发现:土壤呼吸速率与土壤温度呈极显著正相关(P<0.01),与土壤湿度呈极显著负相关(P<0.01),低氮低磷水平下(N30+P20)土壤温度敏感性系数(Q10)高于对照。  结论  氮沉降和磷添加均对杉木林土壤呼吸有促进作用,氮磷复合作用下对杉木林土壤呼吸的促进作用更为显著,其中高氮低磷的促进作用最为显著。图1表2参46
  • 图  1  氮磷处理下杉木林土壤呼吸的季节变化

    Figure  1  Seasonal change of soil respiration under different nitrogen and phosphorus treatments

    表  1  土壤呼吸速率与环境因子的相关性

    Table  1.   Correlation between soil respiration and environmental factors

    环境因子土壤呼吸速率土壤温度土壤湿度
    土壤呼吸速率1
    土壤温度  0.834**1
    土壤湿度  −0.369**−0.449**1
      说明:双尾检验。**表示相关极显著(P<0.01)
    下载: 导出CSV

    表  2  各处理下土壤呼吸速率与环境因子的相关性

    Table  2.   Correlation between soil respiration and environmental factors

    处理土壤温度土壤湿度Q10
    对照  0.93**−0.441*3.318
    低氮  0.964**−0.441*3.087
    高氮  0.930**−0.433*3.318
    低磷  0.751**−0.3283.542
    高磷  0.803**−0.520**3.501
    低氮低磷0.972**−0.433*3.626
    低氮高磷0.916**−0.433*3.355
    高氮低磷0.908**−0.387*3.393
    高氮高磷0.961**−0.581**3.422
      说明:双尾检验。*表示显著相关(P<0.05);**表示极显著相     关(P<0.01)
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-05-15
  • 修回日期:  2021-01-28

模拟氮沉降和磷添加对杉木林土壤呼吸的影响

doi: 10.11833/j.issn.2095-0756.20200326
    基金项目:  “十三五”国家重点研发计划项目(2016YFD0600201)
    作者简介:

    林雨萱(ORCID: 0000-0001-8019-7146),从事植物生态学和植物资源开发利用研究。E-mail: linyuxuan11@163.com

    通信作者: 哀建国(ORCID: 0000-0002-7736-1301),副教授,博士,从事植物生态学和植物资源开发利用研究。E-mail: 1572783600@qq.com
  • 中图分类号: S714

摘要:   目的  模拟氮沉降和磷添加对杉木Cunninghamia lanceolata林土壤呼吸的影响,对调控杉木林土壤碳循环提供科学依据。  方法  以10年生杉木林为研究对象,共设置9个处理水平[对照(ck)、低氮(N30:30 kg·hm−2·a−1)、高氮(N60:60 kg·hm−2·a−1)、低磷(P20:20 mg·kg−1)、高磷(P40:40 mg·kg−1)、低氮低磷(N30+P20)、低氮高磷(N30+P40)、高氮低磷(N60+P20)、高氮高磷(N60+P40)],探讨了大气氮沉降和磷添加对杉木林土壤呼吸的影响。  结果  施加氮磷没有改变杉木林土壤呼吸的季节性变化,单独施氮促进了杉木林土壤呼吸作用。在高氮水平下(N60)对土壤呼吸的促进最显著(P<0.05);单独施磷促进了杉木林土壤呼吸作用,高磷水平(P40)对土壤呼吸的促进最显著(P<0.05);氮磷复合作用下低氮高磷(N30+P40)对杉木林土壤呼吸的促进作用最为显著(P<0.05)。相关分析发现:土壤呼吸速率与土壤温度呈极显著正相关(P<0.01),与土壤湿度呈极显著负相关(P<0.01),低氮低磷水平下(N30+P20)土壤温度敏感性系数(Q10)高于对照。  结论  氮沉降和磷添加均对杉木林土壤呼吸有促进作用,氮磷复合作用下对杉木林土壤呼吸的促进作用更为显著,其中高氮低磷的促进作用最为显著。图1表2参46

English Abstract

林雨萱, 哀建国, 宋新章, 李全, 张君波. 模拟氮沉降和磷添加对杉木林土壤呼吸的影响[J]. 浙江农林大学学报. doi: 10.11833/j.issn.2095-0756.20200326
引用本文: 林雨萱, 哀建国, 宋新章, 李全, 张君波. 模拟氮沉降和磷添加对杉木林土壤呼吸的影响[J]. 浙江农林大学学报. doi: 10.11833/j.issn.2095-0756.20200326
LIN Yuxuan, AI Jianguo, SONG Xinzhang, LI Quan, ZHANG Junbo. Effects of simulated nitrogen deposition and phosphorus addition on soil respiration in Chinese fir forest[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20200326
Citation: LIN Yuxuan, AI Jianguo, SONG Xinzhang, LI Quan, ZHANG Junbo. Effects of simulated nitrogen deposition and phosphorus addition on soil respiration in Chinese fir forest[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20200326

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