Methane emission via sediment and water interface in the Bohai Sea,China

作     者：Kunpeng Zang Gen Zhang Xuemei Xu Nan Zheng Haoyu Xiong Haixiang Hong Kai Jiang Miao Liang Kunpeng Zang;Gen Zhang;Xuemei Xu;Nan Zheng;Haoyu Xiong;Haixiang Hong;Kai Jiang;Miao Liang

作者机构：College of EnvironmentZhejiang University of TechnologyHangzhou 310014China State Key Laboratory of Severe Weather&Key Laboratory of Atmospheric Chemistry of China Meteorological AdministrationChinese Academy of Meteorological SciencesBeijing 100081China Key Laboratory for Ecological Environment in Coastal AreasNational Marine Environmental Monitoring CenterDalian 116023China Meteorological Observation CenterChina Meteorological AdministrationBeijing 100081China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2022年第34卷第4期

页      面：465-474页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the National Key Research and Development Program of China(No.2020YFA0607500) the National Natural Science Foundation of China(Nos.41775127 and 42075112) Key Laboratory of Global Change and Marine Atmospheric Chemistry,Ministry of Natural Resources(No.GCMAC2001) the Basic Research Fund of Chinese Academy of Meteorological Sciences(No.2020Z002) Key Laboratory of Atmospheric Chemistry,China Meteorological Administration(No.2019B07) Key Laboratory on Marine Hazards Forcasting,Ministry of Natural Resources(No.LOMF1803) 

主　　题：Methane Porewater Sediment-water interface Rhizon sampler Earthquake 

摘      要：Sediment is recognized as the largest reservoir and source of methane(CH_(4))in the ocean,especially in the shallow coastal *** date,few data of CH_(4)concentration in sediment have been reported in the China shelf *** this study,we measured CH_(4)concentration in sediment and overlying seawater columns,and conducted an incubation experiment in the Bohai Sea in May ***_(4)concentration was found to be ranged from 3.075 to 1.795μmol/L in sediment,which was 2 to 3 orders of magnitude higher than that in overlying seawater *** surface sediment was an important source of CH_(4),while bottom seawater acted as its ***,the net emission rate via sediment water interface(SWI)was calculated as 2.45μmol/(m^(2)·day)based on the incubation experiment at station73,and the earthquake may enhance CH_(4)release from sediment to seawater column in the eastern Bohai Sea.