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pH和含水量对设施菜地土壤N2O排放的影响

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吴涛, 李华, 王振领, 吴娟. pH和含水量对设施菜地土壤N2O排放的影响[J]. 环境化学, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
引用本文: 吴涛, 李华, 王振领, 吴娟. pH和含水量对设施菜地土壤N2O排放的影响[J]. 环境化学, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
shu
WU Tao, LI Hua, WANG Zhenling, WU Juan. Effects of pH and water content on N2O emission from greenhouse soil[J]. Environmental Chemistry, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
Citation: WU Tao, LI Hua, WANG Zhenling, WU Juan. Effects of pH and water content on N2O emission from greenhouse soil[J]. Environmental Chemistry, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
shu

pH和含水量对设施菜地土壤N2O排放的影响

  • 1.

    青岛农业大学资源与环境学院, 青岛, 266109;

  • 2.

    山东省环境保护科学研究设计院, 济南, 250013;

  • 3.

    青岛农业大学青岛市农村环境工程研究中心, 青岛, 266109

  • 基金项目:

    国家自然科学基金（21307065），山东省优秀中青年科学家科研奖励基金（BS2012HZ005）和青岛农业大学高层次人才科研基金（631016）资助.

Effects of pH and water content on N2O emission from greenhouse soil

  • 1.

    College of Resources and Environment Sciences, Qingdao Agricultural University, Qingdao, 266109, China;

  • 2.

    Shandong Academy of Environmental Science, Ji'nan, 250013, China;

  • 3.

    Qingdao Engineering Research Center for Rural Environment, Qingdao Agricultural University, Qingdao, 266109, China

  • Fund Project: Supported by the National Natural Science Foundation of China(21307065), Promotive Research Fund for Excellent Young and Middle-Aged Scientists of Shandong Province(BS2012HZ005) and Qingdao Agricultural University High-Level Personnel of Scientific Research Funds (631016).

  • 摘要: 采用室内培养方法，选取两个土壤空隙含水量（water-filled pore space，WFPS）（55%和65% WFPS）和3个pH5.5、6.5、7.5），研究pH和含水量对设施菜地土壤N2O排放的影响.结果表明，含水量为55% WFPS时，pH值为5.5、6.5、7.5处理的N2O累积排放量分别为1219.95±24.16、522.96±13.88、209.84±13.86 μg·kg-1.含水量为65% WFPS时，pH值为5.5、6.5、7.5处理的N2O累积排放量分别为1448.57±5.63、831.90±10.41、432.65±12.69 μg·kg-1.除55% WFPS+pH 6.5处理与65% WFPS+pH 7.5处理间的N2O累积排放量差异不显著（P>0.05），其它各处理间均存在显著性差异（P2O累积排放量显著高于其他处理（P2O累积排放量随pH值的降低而增加.同一pH下，含水量在55%-65% WFPS内土壤含水量越高N2O累积排放量越大.pH和含水量是影响设施菜地土壤N2O排放的重要因素.
    Abstract: In order to investigate the effects of pH and water contents on N2O emission from greenhouse soil. A laboratory incubation was conducted to study N2O emission under six treatment (55% of water-filled pore space (WFPS)+pH of 5.5, 6.5, 7.5, 65%WFPS+pH of 5.5, 6.5, 7.5) from greenhouse soils. The results showed that total N2O emission from the 55%WFPS+pH values of 5.5, 6.5, 7.5 treatments was 1219.95±24.16, 522.96±13.88, 209.84±13.86 μg·kg-1. The total N2O emission from the 65%WFPS+pH of 5.5, 6.5, 7.5 treatments was 1448.57±5.63, 831.90±10.41, 432.65±12.69 μg·kg-1, respectively. There was significant difference in the total N2O emission between different treatments. Except for the difference between 55% WFPS, pH 6.5 and 65% WFPS, pH 7.5 treatment (P>0.05). The N2O emitted from 65%WFPS, pH 5.5 treatment was significantly higher than other treatments (P2O emission increased with the decrease of pH within 5.5-7.5. At the same pH, the total N2O emission increased with the increase of the soil moisture content when the water content was 55%-65%WFPS.The results demonstrated that pH and water content were the main influencing factors of N2O emissions from greenhouse soil.
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  • 收稿日期:  2017-02-10
  • 刊出日期:  2018-01-15
吴涛, 李华, 王振领, 吴娟. pH和含水量对设施菜地土壤N2O排放的影响[J]. 环境化学, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
引用本文: 吴涛, 李华, 王振领, 吴娟. pH和含水量对设施菜地土壤N2O排放的影响[J]. 环境化学, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
shu
WU Tao, LI Hua, WANG Zhenling, WU Juan. Effects of pH and water content on N2O emission from greenhouse soil[J]. Environmental Chemistry, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
Citation: WU Tao, LI Hua, WANG Zhenling, WU Juan. Effects of pH and water content on N2O emission from greenhouse soil[J]. Environmental Chemistry, 2018, 37(1): 146-153. doi: 10.7524/j.issn.0254-6108.2017021001
shu

pH和含水量对设施菜地土壤N2O排放的影响

  • 1.  青岛农业大学资源与环境学院, 青岛, 266109;
  • 2.  山东省环境保护科学研究设计院, 济南, 250013;
  • 3.  青岛农业大学青岛市农村环境工程研究中心, 青岛, 266109
  • 收稿日期:  2017-02-10
基金项目:

国家自然科学基金（21307065），山东省优秀中青年科学家科研奖励基金（BS2012HZ005）和青岛农业大学高层次人才科研基金（631016）资助.

摘要: 采用室内培养方法，选取两个土壤空隙含水量（water-filled pore space，WFPS）（55%和65% WFPS）和3个pH5.5、6.5、7.5），研究pH和含水量对设施菜地土壤N2O排放的影响.结果表明，含水量为55% WFPS时，pH值为5.5、6.5、7.5处理的N2O累积排放量分别为1219.95±24.16、522.96±13.88、209.84±13.86 μg·kg-1.含水量为65% WFPS时，pH值为5.5、6.5、7.5处理的N2O累积排放量分别为1448.57±5.63、831.90±10.41、432.65±12.69 μg·kg-1.除55% WFPS+pH 6.5处理与65% WFPS+pH 7.5处理间的N2O累积排放量差异不显著（P>0.05），其它各处理间均存在显著性差异（P2O累积排放量显著高于其他处理（P2O累积排放量随pH值的降低而增加.同一pH下，含水量在55%-65% WFPS内土壤含水量越高N2O累积排放量越大.pH和含水量是影响设施菜地土壤N2O排放的重要因素.

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