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模拟氮沉降对油松林单一及混合叶凋落物分解的影响

汪金松 王晨 赵秀海 张春雨 李化山 王娜 赵博

汪金松, 王晨, 赵秀海, 张春雨, 李化山, 王娜, 赵博. 模拟氮沉降对油松林单一及混合叶凋落物分解的影响[J]. 北京林业大学学报, 2015, 37(10): 14-21. doi: 10.13332/j.1000-1522.20140292
引用本文: 汪金松, 王晨, 赵秀海, 张春雨, 李化山, 王娜, 赵博. 模拟氮沉降对油松林单一及混合叶凋落物分解的影响[J]. 北京林业大学学报, 2015, 37(10): 14-21. doi: 10.13332/j.1000-1522.20140292
WANG Jin-song, WANG Chen, ZHAO Xiu-hai, ZHANG Chun-yu, LI Hua-shan, WANG Na, ZHAO Bo. Effects of simulated nitrogen deposition on decomposition of single and mixed leaf litters in the plantation and natural forests of Pinus tabulaeformis.[J]. Journal of Beijing Forestry University, 2015, 37(10): 14-21. doi: 10.13332/j.1000-1522.20140292
Citation: WANG Jin-song, WANG Chen, ZHAO Xiu-hai, ZHANG Chun-yu, LI Hua-shan, WANG Na, ZHAO Bo. Effects of simulated nitrogen deposition on decomposition of single and mixed leaf litters in the plantation and natural forests of Pinus tabulaeformis.[J]. Journal of Beijing Forestry University, 2015, 37(10): 14-21. doi: 10.13332/j.1000-1522.20140292

模拟氮沉降对油松林单一及混合叶凋落物分解的影响

doi: 10.13332/j.1000-1522.20140292
基金项目: 

国家自然科学基金项目(31340022)。

详细信息
    作者简介:

    汪金松,博士。主要研究方向:生态系统生物地球化学循环。Email: wangjinsong@caf.ac.cn 地址:100091北京市海淀区颐和园后香山路中国林业科学研究院。 责任作者: 赵秀海,教授,博士生导师。主要研究方向:群落生态学。Email: zhaoxh@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。

    汪金松,博士。主要研究方向:生态系统生物地球化学循环。Email: wangjinsong@caf.ac.cn 地址:100091北京市海淀区颐和园后香山路中国林业科学研究院。 责任作者: 赵秀海,教授,博士生导师。主要研究方向:群落生态学。Email: zhaoxh@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。

Effects of simulated nitrogen deposition on decomposition of single and mixed leaf litters in the plantation and natural forests of Pinus tabulaeformis.

  • 摘要: 通过长期原位模拟氮沉降试验,研究暖温带油松林单一和混合叶凋落物分解对外源氮添加的响应过程与机制。氮处理水平分别为对照(0 kg/(hm2a),N0),低氮(50 kg/(hm2a),N1),中氮(100 kg/(hm2a),N2)和高氮(150 kg/(hm2a),N3)。利用凋落袋法对天然林油松针叶、辽东栎阔叶、油松--辽东栎混合叶以及人工林油松针叶进行原位分解试验。研究结果表明,自然状态下天然林油松针叶、辽东栎阔叶、油松--辽东栎混合叶、人工林油松针叶分解95%所需时间分别为7.58、4.89、6.92、8.03 年。氮沉降显著促进了人工林油松针叶的分解,抑制天然林辽东栎阔叶的分解;分解前期,N沉降促进天然林油松针叶、油松--辽东栎混合叶分解,并在分解后期对油松针叶分解产生抑制作用,而对油松--辽东栎混合叶分解无显著影响。在氮沉降持续增加的背景下,研究结果可为油松林生态系统物质循环和能量流动提供基础数据。

     

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  • 收稿日期:  2014-09-22
  • 刊出日期:  2015-10-31

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