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科学通报  2014 

准噶尔盆地南缘独山子泥火山温室气体排放通量

DOI: 10.1360/N972014-00361, PP. 3190-3196

Keywords: 泥火山,温室气体,碳排放,独山子,准噶尔盆地

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Abstract:

泥火山是深部构造作用和地下流体上侵活动在地表的直接表现,向大气圈排放大量以甲烷为主的温室气体,然而对其温室气体排放通量的研究报道却较少.我国新疆独山子泥火山是典型的、且非常活跃的泥火山,正在排放各种温室气体.利用密闭气室连接甲烷探测器方法对排放气体进行原位测量,结合泥火山排放气体的组成特征,估算了研究区泥火山所排放的温室气体通量.结果表明,新疆独山子DSZ-01和DSZ-03等两处泥火山通过宏观渗漏每年向大气排放约161.1t的温室气体,DSZ-01泥火山喷口周围314m2,DSZ-02泥火山喷口周围8400m2和DSZ-03泥火山喷口周围706m2等3个区域通过微观渗漏每年向大气排放约16.6t的温室气体.

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