长白山天池火山温泉群附近含碳气体通量特征  

Characterization of Carbonaceous Gas Fluxes at Changbaishan Tianchi Volcano,Northeast China

作　　者：苏晓轶 顾国辉 盘晓东[1] 仲广培 SU Xiaoyi;GU Guohui;PAN Xiaodong;ZHONG Guangpei(Jilin Earthquake Agency,Jilin Changchun 130117,China;Changbaishan Volcano Observatory,Jilin Antu 133600,China;Key Laboratory of Petroleum Resources Exploration and Evaluation,Gansu Province,Gansu Lanzhou 730000,China)

机构地区：[1]吉林省地震局,吉林长春130117 [2]吉林省长白山天池火山监测站,吉林安图133600 [3]甘肃省油气资源勘探与评价重点实验室,甘肃兰州730000

出　　处：《防灾减灾学报》2025年第1期82-89,共8页Journal of Disaster Prevention And Reduction

基　　金：中国地震局监测、预报、科研三结合课题(3JH-202401045);地震科技星火计划项目(XH23013B);吉林省地震局青年科技发展课题(JZQ-202403);甘肃省油气资源勘探与评价重点实验室开放基金(KLPREEGS-2024-17)。

摘　　要：温泉是火山深部气体释放的重要通道,查明休眠期火山温泉群附近含碳气体释放背景和特征,对火山监测和喷发预测以及火山温室气体释放评估等都有重要意义,通过在火山锥体聚龙温泉和锦江附近开展土壤气体通量观测,获得了CO_(2)和CH_(4)通量特征。结果表明:聚龙温泉群附近土壤CO_(2)通量范围为3.02~2995.53 g·m^(-2)·d^(-1),土壤CH_(4)通量范围为0~5.81 g·m^(-2)·d^(-1)。锦江温泉群附近土壤CO_(2)通量范围为16.39~3049.55 g·m^(-2)·d^(-1),土壤CH_(4)通量范围为0~1.85 g·m^(-2)·d^(-1)。温泉群附近土壤气体在释放空间上表现出不均匀性。研究区CH_(4)和CO_(2)通量具有较强的正相关,相关性系数为0.8,说明两种气体可能为相同来源。CO_(2)通量与土壤温度具有正相关,与气温和气压无相关性。Hot springs serve as significant channels for the release of gases from the deep part of volcanoes.Ascertaining the background and characteristics of carbonaceous gas emissions during the dormant period of volcanoes is of great significance for volcanic monitoring,eruption prediction,and the assessment of volcanic greenhouse gas emissions.By conducting soil gas flux measurements near Julong Hot Spring and Jinjiang on the volcanic cone,the flux characteristics of CO_(2)and CH_(4)were obtained.The results showed that soil CO_(2)fluxes ranged from 3.02~2995.53 g·m^(-2)·d^(-1) and soil CH_(4)fluxes ranged from 0~5.81 g·m^(-2)·d^(-1) in the vicinity of the Jurong hot spring area.Soil CO_(2)fluxes ranged from 16.39~3049.55 g·m^(-2)·d^(-1) and soil CH_(4)fluxes ranged from 0~1.85 g·m^(-2)·d^(-1) in the vicinity of the Jinjiang hot spring.The soil gases near the hot spring group exhibit spatial heterogeneity in their release.The fluxes of CH_(4)and CO_(2)in the study area have a strong positive correlation with a correlation coefficient of 0.8,suggesting that the two gases may come from the same source.CO_(2)fluxes are positively correlated with soil temperatures,but not with atmospheric temperatures or atmospheric pressures.

关 键 词：长白山天池火山 含碳气体 休眠火山 CO_(2)通量 CH_(4)通量 

分 类 号：P317.6[天文地球—固体地球物理学] P593[天文地球—地球物理学]