中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 烟台海岸带研究所
  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
Large Blue Carbon Export Through Submarine Groundwater Discharge: Insights From a Marsh-Creek Basin System

文献类型：期刊论文

作者Zhao, Man5,6; Zhang, Yan5; Wilson, Alicia M.7; Moore, Willard S.7; Smith, Erik7; Lang, Susan Q.8; Sheng, Chong2; Zheng, Chunmiao1; Li, Hailong3; Xu, Bochao4
刊名GLOBAL BIOGEOCHEMICAL CYCLES
出版日期2026-02-23
卷号40期号:2页码:18
关键词salt marsh tidal creek submarine groundwater discharge blue carbon Ra isotopes
ISSN号0886-6236
DOI10.1029/2025GB008781
通讯作者Xiao, Kai(kxiao@yic.ac.cn)
英文摘要Salt marshes are crucial for blue carbon sequestration and the mitigation of climate change. While submarine groundwater discharge (SGD) is increasingly recognized as an important pathway for carbon export in salt marsh tidal creek systems, current research predominantly relies on point-scale, time-series observations of creek water. Investigations employing extensive spatial coverage and depth-resolved sampling within creek networks remain limited. This study implemented a sampling campaign across spring-neap tidal cycles encompassing a wide area of a tidal creek and collecting groundwater samples from multiple depths at the creek bottom within the North Inlet-Winyah Bay National Estuarine Research Reserve System in South Carolina, United States. By employing radium isotopes (Ra-226 and Ra-228) as tracers, we quantified SGD and associated carbon fluxes and elucidated the biogeochemical transformation processes occurring within the marsh-creek basin. The results reveal substantial blue carbon exports via creek bottom SGD: a dissolved inorganic carbon (DIC) flux of 241 +/- 61 mmol/m(2)/d and net negative fluxes of dissolved organic carbon (-22 +/- 5 mmol/m(2)/d) and total nitrogen (-0.98 +/- 0.27 mmol/m(2)/d). DIC as the predominant form of carbon export via SGD is comparable to the carbon sequestration capacity of primary productivity and surpasses the net carbon burial of the marsh. A comparative analysis across the globe indicates that tidal creeks are a significant component influencing the coastal carbon budget balance process. These findings further highlight the critical role of groundwater-transported carbon fluxes in the coastal carbon cycle, particularly within tidal creek basins, and emphasize the necessity of integrating groundwater processes into blue carbon assessments to effectively address climate change.
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001697962200001
资助机构National Natural Science Foundation of China ; Ministry of Education of the People's Republic of China ; Taishan Scholars Program
源URL[http://ir.yic.ac.cn/handle/133337/42182]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Xiao, Kai
作者单位1.Eastern Inst Technol, Sch Environm & Sustainable Engn, Ningbo, Peoples R China
2.GEOMAR Helmholtz Ctr Ocean Res Kiel, Kiel, Germany
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China
4.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao, Peoples R China
5.China Univ Geosci Beijing, Sch Water Resources & Environm, MOE Key Lab Groundwater Circulat & Environm Evolut, Beijing, Peoples R China
6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
7.Univ South Carolina, Sch Earth Ocean & Environm, Columbia, SC USA
8.Woods Hole Oceanog Inst, Woods Hole, MA USA
推荐引用方式
GB/T 7714		 Zhao, Man,Zhang, Yan,Wilson, Alicia M.,et al. Large Blue Carbon Export Through Submarine Groundwater Discharge: Insights From a Marsh-Creek Basin System[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2026,40(2):18.
APA Zhao, Man.,Zhang, Yan.,Wilson, Alicia M..,Moore, Willard S..,Smith, Erik.,...&Xiao, Kai.(2026).Large Blue Carbon Export Through Submarine Groundwater Discharge: Insights From a Marsh-Creek Basin System.GLOBAL BIOGEOCHEMICAL CYCLES,40(2),18.
MLA Zhao, Man,et al."Large Blue Carbon Export Through Submarine Groundwater Discharge: Insights From a Marsh-Creek Basin System".GLOBAL BIOGEOCHEMICAL CYCLES 40.2(2026):18.

入库方式： OAI收割

来源：烟台海岸带研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。