| 华东稻麦轮作生态系统的N2O排放研究 |
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| 引用本文： | 郑循华,王明星,王跃思,沈壬兴,龚晏邦,张文,骆冬梅,金继生,李老土.华东稻麦轮作生态系统的N2O排放研究[J].生态学杂志,1997,8(5):495-499. |
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| 作者姓名： | 郑循华 王明星 王跃思 沈壬兴 龚晏邦 张文 骆冬梅 金继生 李老土 |
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| 作者单位： | 1. 中国科学院大气物理研究所,北京 100029;
2. 江苏省吴县市农业科学研究所,苏州 210128 |
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| 基金项目： | 国家自然科学基金(49675270);中国科学院大气物理研究所边界层物理与大气化学国家重点实验室基金;中德合作项目 |
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| 摘 要： | 根据对华东稻麦轮作周期的N2O排放及其影响因子的连续观测结果,分析了N2O排放时间变化以及施肥、灌溉、温度、土壤湿度和土壤速效N素含量对N2O排放的影响,同时还比较分析了稻田N2O和CH4排放.研究结果表明,稻麦轮作周期内,水稻生长季的N2O排放量仅占30%,稻田持续淹水可比常规灌溉增加CH4排放量26%,减少N2O排放量11～26%.
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| 关 键 词： | N2O排放 时间变化 控制因子 CH4排放 稻麦轮作系统 |
| 收稿时间： | 1995-03-28 |
N2O emission from rice wheat ecosystem in Southeast China |
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| Zheng Xunhua,Wang Mingxing,Wang Yuesi,Shen Renxing,Gong Yanbang,Zhang Wen,Luo Dongmei.N2O emission from rice wheat ecosystem in Southeast China[J].Chinese Journal of Ecology,1997,8(5):495-499. |
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| Authors: | Zheng Xunhua Wang Mingxing Wang Yuesi Shen Renxing Gong Yanbang Zhang Wen Luo Dongmei |
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| Institution: | Institute of Atmospheric Physics, Academia Sinica, Beijing 100029 |
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| Abstract: | Based on the observations on N2O emission from rice-wheat rotation systems in Southeast China,its temporal variation and the effects of fertilization,irrigation,temperature,and soil moisture and available Ncontents on it are discussed. Meanwhile,the difference of CH4 and N2O emissions from rice season is analysed. The results show that the amount of N2O emitted from rice season only accounts for about 30% of the whole rotation cycle.The CH4 emission increases 26% by keeping flooding in rice season,and N2O emission from rice-wheat rotation cycle reduces 13～26%,comparing to normal irrigation. |
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| Keywords: | N2O emission Temporal variation Regulating factor CH4 emission Rice wheat rotation system |
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