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| 赤红壤早稻田甲烷排放通量及其影响因素 | |
| 引用本文： | 杜尧东,刘锦銮,杨宁,王天龙,MAK Khlil,MJ Shearer.赤红壤早稻田甲烷排放通量及其影响因素[J].生态学杂志,2005,24(8):939-942. |
| 作者姓名： | 杜尧东 刘锦銮 杨宁 王天龙 MAK Khlil MJ Shearer |
| 作者单位： | 1. 广东省气候与农业气象中心,广州,510080 2. 广东省清远市气象局,清远,511500 3. 波特兰州立大学物理系,波特兰,97207 |
| 摘 要： | 用封闭箱法对广东省赤红壤早稻田CH4排放通量进行了观测。结果表明,CH4排放有明显的季节变化规律,3个排放高峰分别出现在水稻分蘖末期、孕穗抽穗期和乳熟期,平均通量为5.7mg.m-2.h-1。在测定期内,CH4排放与5和10cm土壤温度呈显著正相关,与土壤Eh呈显著负相关,与土壤pH值、水层深浅相关不明显。 |
| 关 键 词： | 赤红壤 早稻田 CH4排放 影响因素 |
| 文章编号： | 1000-4890（2005）08-0939-04 |
| 收稿时间： | 2004-11-21 |
| 修稿时间： | 2004年11月21 |
CH4 emission flux from early rice field of laterite and its affecting factors |
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| Du Yaodong,LIU Jinluan,YANG Ning,WANG Tianlong,MAK Khlil,MJ Shearer.CH4 emission flux from early rice field of laterite and its affecting factors[J].Chinese Journal of Ecology,2005,24(8):939-942. | |
| Authors: | Du Yaodong LIU Jinluan YANG Ning WANG Tianlong MAK Khlil MJ Shearer |
| Abstract: | The measurement of CH_4 emission flux from an early rice field of laterite in Guangdong Province with closed chamber technique showed that the CH_4 emission had a significant seasonal pattern,with three peaks at late tillering,booting-heading and milky stages,and an average of 5.7 mgm~(-2)h~(-1).During the period of measurement,there was a significantly positive correlation between CH_4 flux and soil temperature at 5 cm and 10 cm soil depths,and a significantly negative correlation between CH_4 flux and soil Eh.No significant correlation was found between CH_4 flux and soil pH or water depth. |
| Keywords: | CH_4 emission laterite early rice field affecting factors |
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