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土壤性质和非水稻生长期土壤水分对CH4产生、氧化和排放的影响(英文)

  • 徐华 ,
  • 蔡祖聪
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  • 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所), 南京 210008

收稿日期: 2003-11-20

  网络出版日期: 2004-05-10

基金资助

supported by the National Natural Science Foundation of China (40371068)

Soil Moisture During the Non-Rice Growing Season and Soil Properties Affect CH_ 4 Production, Oxidation and Emission

  • XU Hua ,
  • CAI ZuCong
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  • State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China

Received date: 2003-11-20

  Online published: 2004-05-10

摘要

土壤有机质含量是影响CH4产生的最重要土壤性质。土壤CH4氧化能力与包括活性碳、有机碳和全氮含量在内的土壤理化性质之间都不存在显著相关性。非水稻生长期较高的水分含量能促进水稻生长季节CH4的产生、氧化和排放。在影响稻田CH4排放大尺度空间变异性的主要因素中,土壤水分历史可能比土壤性质更为重要。结果表明,非水稻生长期土壤水分对水稻生长期CH4产生、氧化和排放具有极其重要的控制和调节作用。

本文引用格式

徐华 , 蔡祖聪 . 土壤性质和非水稻生长期土壤水分对CH4产生、氧化和排放的影响(英文)[J]. 中国科学院大学学报, 2004 , 21(3) : 427 -431 . DOI: 10.7523/j.issn.2095-6134.2004.3.023

Abstract

Soil organic matter content is the most important property to affect CH 4 production. There is no specific soil property to affect significantly CH4 oxidation. The CH4 production, oxidation and emission potentials are all stimulated by higher soil water content during the previous non rice growing season. Soil water history might be a more important factor than soil property in controlling the spatial variability of CH4 emissions from rice fields on large spatial scale. The results demonstrate the importance of water management between rice crops as a means to regulate CH4 production,oxidation and emission during rice growing season.

参考文献

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[4] Xu H, Z C Cai, H Tsuruta. Soil moisture between rice-growing seasons affects methane emission, production, andoxidation. Soil Sci. Soc. Am.J., 2003, 67: 1147-1157

[5] Hua Xu, Zucong Cai, Zhongjun Jia. Effect of soil water contents in the non-rice growth season on CH4 emission during the following rice-growing period. Nutrient Cycling in Agroecosystmes, 2002, 64:101-110

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