Emission flux and carbon isotopic composition of methane from rice paddies in Guizhou Province

被引：2
|
作者：
Jinhua Li
Jingrong Cao
Yetang Hong
Rongxuan Zhu
机构：
[1] Chinese Academy of Sciences,State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry
来源：
Chinese Journal of Geochemistry | 1997年 / 16卷 / 3期
关键词：
methane; rice paddy; emission flux; carbon isotopic composition; global change; Guizhou Province;
D O I：
10.1007/BF02870913
中图分类号：
学科分类号：
摘要：
Methane emission flux from rice paddies in Guizhou Province shows obvious three-stage diurnal variations: it is relatively low from the morning to the noon, then successively increases in the afternoon and at night, and finally follows a gradual decrease. The δ13C values of trace methane emitted from rice paddies in Guizhou Province range from −64.5‰ to −54. 1‰ with an average of −60.7‰, very close to the reported values from America or Kenya.
引用
收藏
页码：283 / 288
页数：5
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