中国环境科学

中国东部沿海近地表大气CH₄和CO₂浓度及碳同位素空间分布

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卞天雨 ¹^,² , 段晓勇 ²^,³^,^* , 仝港 ²^,⁴ , 李雪 ²^,³ , 印萍 ²^,³ , 曹珂 ²^,³ , 陈彬 ²^,³ , 张大海 ¹

中国环境科学 | 大气污染与控制 2026,46(3): 1229-1237

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中国环境科学 |大气污染与控制 2026 , 46 (3) : 1229 -1237

中国东部沿海近地表大气CH₄和CO₂浓度及碳同位素空间分布

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卞天雨¹^,², 段晓勇²^,³^,^*, 仝港²^,⁴, 李雪²^,³, 印萍²^,³, 曹珂²^,³, 陈彬²^,³, 张大海¹

作者信息

^1.中国海洋大学化学化工学院，山东青岛 266100

^2.中国地质调查局青岛海洋地质研究所，山东青岛 266237

^3.中国地质调查局舟山海洋地质灾害野外科学观测研究站，山东青岛 266237

^4.中国海洋大学地球科学学院，山东青岛 266100

通讯作者:

^* 责任作者，研究员，duan-xy@qq.com

作者简介:

卞天雨（1999-），男，山东临沂人，中国海洋大学硕士研究生，研究方向为化学工程．发表论文1篇．17852365158@163.com.

Spatial distribution of near-surface atmospheric CH₄ and CO₂ concentrations and their carbon isotopic compositions in the coastal region of eastern China

Tian-yu BIAN¹^,², Xiao-yong DUAN²^,³^,^*, Gang TONG²^,⁴, Xue LI²^,³, Ping YIN²^,³, Ke CAO²^,³, Bin CHEN²^,³, Da-hai ZHANG¹

Affiliations

^1.College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

^2.Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266237, China

^3.Zhoushan Field Scientific Observation and Research Station for Marine Geo-hazards, China Geological Survey, Qingdao 266237, China

^4.College of Earth Sciences, Ocean University of China, Qingdao 266100, China

出版时间: 2026-03-20

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摘要

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利用车载移动测量方法研究了中国东部沿海的甲烷（CH₄）、二氧化碳（CO₂）浓度及其碳同位素组成（δ¹³C-CH₄、δ¹³C-CO₂）．结果表明：CH₄浓度变化范围为（1.84~2.94）×10^-6，平均浓度为2.09×10^-6，最高值在广东江门（2.32×10^-6）；最低值在福建漳州（1.94×10^-6）．CO₂浓度变化范围为（420.51~857.33）×10^-6，平均浓度为525.70×10^-6，最高值在广东深圳（599.08×10^-6）；最低值在江苏南通（477.42×10^-6）．研究区CH₄和CO₂含量超于大气背景值．δ¹³C-CH₄变化范围为-62.62‰~-29.70‰，平均值为-43.65‰，最高值在山东青岛（-40.24‰）；最低值在福建漳州（-48.25‰）．δ¹³C-CO₂变化范围为-28.64‰~-9.19‰，平均值为-17.53‰，最高值在江苏南通（-14.45‰）；最低值在广东深圳（-19.13‰）．研究区CH₄浓度和碳同位素呈正相关，CO₂浓度和碳同位素呈负相关．人均GDP、民用汽车拥有量、牲畜存栏量、水稻面积与CH₄浓度及碳同位素呈正相关，森林覆盖率与CH₄浓度及碳同位素呈负相关．利用δ¹³C（CO₂）示踪山东、江苏、上海、浙江、福建、广东的沿海大气CO₂源汇特征，其δ¹³Cs分别为：-37.90‰、-37.67‰、-41.24‰、-34.12‰、-33.99‰、-32.39‰，指示石油与天然气的燃烧是研究区CO₂排放的主要贡献源．

关键词

东部沿海城市 / 车载移动测量 / CH₄ / CO₂ / 浓度 / 碳同位素

Abstract

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The concentration and carbon isotope compositions (δ¹³C-CH₄, δ¹³C-CO₂) of methane (CH₄) and carbon dioxide (CO₂) along the coastal of eastern China were studied using vehicle mounted mobile measurement methods. The results indicated that the CH₄ concentration was observed to range from (1.84~2.94) ×10^-6, with an average concentration of 2.09×10^-6. The highest value was recorded in Jiangmen, Guangdong (2.32×10^-6), while the lowest value was recorded in Zhangzhou, Fujian (1.94×10^-6). The CO₂ concentration was found to range from (420.51~857.33) ×10^-6, with an average concentration of 525.70×10^-6. The highest value was measured in Shenzhen, Guangdong (599.08×10^-6), and the lowest value was measured in Nantong, Jiangsu (477.42×10^-6). Both CH₄ and CO₂ levels in the study area were found to exceed the atmospheric background values. The δ¹³C-CH₄ values ranged from-62.62‰ to -29.70‰, with an average of -43.65‰. The highest value was observed in Qingdao, Shandong (-40.24‰), and the lowest value was observed in Zhangzhou, Fujian (-48.25‰). The δ¹³C-CO₂ values ranged from -28.64‰ to -9.19‰, with an average of -17.53‰. The highest value was recorded in Nantong, Jiangsu (-14.45‰), and the lowest value was recorded in Shenzhen, Guangdong (-19.13‰). In the study area, CH₄ concentration was found to be positively correlated with its carbon isotope signature, while CO₂ concentration was negatively correlated with its carbon isotope signature. Per capita GDP, the number of civilian vehicles, livestock inventory, and rice cultivation area were all positively correlated with CH₄ concentration and its carbon isotope signature. In contrast, the forest coverage rate was negatively correlated with CH₄ concentration and its carbon isotope signature. δ¹³C (CO₂) was utilized to trace the sources and sinks of atmospheric CO₂ along the coastal regions of Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, and Guangdong. Their respective δ¹³C (CO₂) source signatures (δ¹³Cs) were determined to be: -37.90‰, -37.67‰, -41.24‰, -34.12‰, -33.99‰, and -32.39‰. These values indicated that the combustion of petroleum and natural gas was identified as the primary contributing source to CO₂ emissions in the study area.

Key words

eastern coastal cities / vehicle mounted mobile measurement / CH₄ / CO₂ / concentration / carbon isotope

引用本文

卞天雨, 段晓勇, 仝港, 李雪, 印萍, 曹珂, 陈彬, 张大海. 中国东部沿海近地表大气CH₄和CO₂浓度及碳同位素空间分布. 中国环境科学, 2026 , 46 (3) : 1229 -1237 .

Tian-yu BIAN, Xiao-yong DUAN, Gang TONG, Xue LI, Ping YIN, Ke CAO, Bin CHEN, Da-hai ZHANG. Spatial distribution of near-surface atmospheric CH₄ and CO₂ concentrations and their carbon isotopic compositions in the coastal region of eastern China[J]. China Environmental Science, 2026 , 46 (3) : 1229 -1237 .

基金

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国家重点研发计划项目(2022YFE0209300)
国家自然科学基金资助项目(42176091)
亚洲合作资金（长江三角洲与红河三角洲海洋地质环境与灾害合作研究）资助项目

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2026年第46卷第3期

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接收时间：2025-08-08
首发时间：2026-10-08
出版时间：2026-03-20

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收稿日期：2025-08-08

基金

国家重点研发计划项目(2022YFE0209300)

国家自然科学基金资助项目(42176091)

亚洲合作资金（长江三角洲与红河三角洲海洋地质环境与灾害合作研究）资助项目

作者信息

^1.中国海洋大学化学化工学院，山东青岛 266100

^2.中国地质调查局青岛海洋地质研究所，山东青岛 266237

^3.中国地质调查局舟山海洋地质灾害野外科学观测研究站，山东青岛 266237

^4.中国海洋大学地球科学学院，山东青岛 266100

通讯作者:

^* 责任作者，研究员，duan-xy@qq.com

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https://castjournals.cast.org.cn/joweb/zghjkx/CN/1314922992312869020

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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