| 氮沉降对林带土壤N2O和CH4通量的影响 |
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| 引用本文： | 胡正华,张寒,陈书涛,李琪,李涵茂,申双和.氮沉降对林带土壤N2O和CH4通量的影响[J].中国环境科学,2011,31(6):892-897. |
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| 作者姓名： | 胡正华 张寒 陈书涛 李琪 李涵茂 申双和 |
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| 作者单位： | 1. 南京信息工程大学江苏省农业气象重点实验室,江苏南京,210044
2. 南京信息工程大学环境科学与工程学院,江苏南京,210044 |
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| 基金项目： | 国家自然科学基金资助项目，土壤与农业可持续发展国家重点实验室开放基金项目，江苏省"青蓝工程" |
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| 摘 要： | 于2008年4月~2009年10月在龙王山对林带土壤进行模拟氮沉降试验,采用静态箱-气相色谱法测定土壤N2O和CH4通量,研究氮沉降增加对土壤N2O和CH4排放(吸收)的影响.结果表明,短期内,氮沉降没改变土壤N2O和CH4通量的季节性变化规律和日变化规律.与对照(CK)相比,短期的低氮50 kg N/(hm2·a), TL]、中氮100kgN/(hm2·a), TM]和高氮150kgN/(hm2·a), TH]处理对土壤的N2O和CH4年平均通量和日平均通量都没有显著影响.
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| 关 键 词： | 氮沉降 森林土壤 N2O CH4 通量 北亚热带 |
| 收稿时间： | 2010-10-20; |
Effects of simulated nitrogen deposition on N2O and CH4 fluxes of soil in forest belt |
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| HU Zheng-hua,ZHANG Han,CHEN Shu-tao,LI Qi,LI Han-mao,SHEN Shuang-he.Effects of simulated nitrogen deposition on N2O and CH4 fluxes of soil in forest belt[J].China Environmental Science,2011,31(6):892-897. |
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| Authors: | HU Zheng-hua ZHANG Han CHEN Shu-tao LI Qi LI Han-mao SHEN Shuang-he |
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| Institution: | HU Zheng-hua1,ZHANG Han2,CHEN Shu-tao2,LI Qi1,LI Han-mao2,SHEN Shuang-he1(1.Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing University of Information Science and Technology,Nanjing 210044,China,2.School of Environmental Science and Engineering,China) |
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| Abstract: | To investigate the effects of elevated nitrogen deposition on forest soil N2O and CH4 fluxes, a simulated nitrogen deposition field experiment was conducted in forest belt from April 2008 to October 2009. Nitrogen treatments included the control (no N addition, CK), low-N 50kgN/(hm2·a), TL], medium-N 100kgN/(hm2·a), TM], and high-N 150kg N/(hm2·a), TH]. N2O and CH4 fluxes were measured by a static chamber-gas chromatograph method. Nitrogen deposition did not change the seasonal and daily variation patterns of soil N2O and CH4 fluxes. Compared to the control, TL, TM and TH treatments had no significant effects on annual average and daily average fluxes of N2O and CH4 in soil. Short-term nitrogen deposition did not alter N2O emission fluxes and CH4 absorb fluxes of soil in forest belt. |
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| Keywords: | N2O CH4 |
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