CH4 emission flux from early rice field of laterite and its affecting factors

Abstract

Abstract: The measurement of CH₄ emission flux from an early rice field of laterite in Guangdong Province with closed chamber technique showed that the CH₄ emission had a significant seasonal pattern,with three peaks at late tillering,booting-heading and milky stages,and an average of 5.7 mg穖^-2穐^-1.During the period of measurement,there was a significantly positive correlation between CH₄ flux and soil temperature at 5 cm and 10 cm soil depths,and a significantly negative correlation between CH₄ flux and soil Eh.No significant correlation was found between CH₄ flux and soil pH or water depth.

Key words: Biogenic volatile organic compounds(BVOCs), Elevated atmospheric CO₂, O₃

CLC Number:

X511

DU Yaodong, LIU Jinluan, YANG Ning, WANG Tianlong, MAK Khalil, MJ Shearer. CH₄ emission flux from early rice field of laterite and its affecting factors[J]. cje, 2005, (8): 939-942.

References

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CH₄ emission flux from early rice field of laterite and its affecting factors

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