The relation between movement of subsurface water and gaseous methane in a basin bog with a novel instrument
The relation between movement of subsurface water and gaseous methane in a basin bog with a novel instrument
复制标题
用新型仪器研究盆地沼泽中地下水运动与气态甲烷的关系
DOI：
10.4141/cjss91-042
复制
发表时间：
1991
影响因子：
1.7
通讯作者：
S. P. Mathur
中科院分区：
文献类型：
--
作者：
A. Buttler;H. Dinel;M. Lévesqué;S. P. Mathur
制作了一个管状金属探头。水和气体释放到样品室的探针从45至60厘米的深度可以收集在1分钟的片段没有暴露的泥炭表面在孔中的大气。通过气相色谱法鉴定放出的气体并测量其浓度。水进入洞的运动被发现变化3个数量级，显然取决于探针是否刺穿了一个被困（闭塞）甲烷的重要口袋，或者接近或远离任何这样的口袋。得出的结论是，开发的仪器将适合于表征泥炭地层中的气液混合物的发生和运动，这将有助于开发新的或修改的泥炭地中的气体和水传输的数学模型。该研究还表明，甲烷，而不是二氧化碳，在气相中被吸留的数量足以影响水的运动。关键词：水运动，甲烷，沼泽
A tubular metallic probe was built. Water and gases released into the sample chamber of the probe from the 45- to 60-cm depth could be collected in 1-min segments without exposure of the peat surface in the hole to the atmosphere. The evolved gases were identified and concentrations measured by gas chromatography. The water movement into the hole was found to vary by 3 orders of magnitude, apparently depending on whether the probe pierced a significant pocket of trapped (occluded) methane, or was close to, or away from any such pocket. It was concluded that the instrument developed would be suitable for characterizing the occurrence and movement of the gas-fluid mixture in peatland layers which would facilitate the development of new or modified mathematical models of gas and water transmission in peatlands. The study also indicated that methane, but not carbon dioxide, is occluded in the gaseous phase in amounts significant enough to influence water movement. Key words: Water movement, methane, bog