Increased Heavily Silicified Diatoms Modulate the Biogenic Silica Deposition in the Yellow Sea
文献类型：期刊论文
| 作者 | He, Mengfan4,5; Zhou, Hao5; Wang, Xiaofeng1; Dong, Xiaowei3; Wang, Yujue5; Liu, Dongyan2,5 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
 |
| 出版日期 | 2025-09-30 |
| 卷号 | 130期号:10页码:19 |
| 关键词 | Paralia sulcata Biogenic silica Yellow Sea |
| ISSN号 | 2169-8953 |
| DOI | 10.1029/2025JG008790 |
| 通讯作者 | Liu, Dongyan(dyliu@sklec.ecnu.edu.cn) |
| 英文摘要 | Diatoms are the most important organisms driving the marine biogenic silica (bSi) cycle, but their biomass and species composition have undergone substantial changes in the modern ocean. How their variations affect the marine bSi cycling remains unclear. Here, we estimated the seasonal relationship between diatom assemblages and bSi content, using the data from the sediment trap, in situ observations, and surface sediments in the Yellow Sea. Monthly sediment trap data revealed a significantly positive correlation between the proportion of heavily silicified diatom Paralia sulcata and bSi content, indicating the contribution of diatom silicification to bSi production. Seasonal observations revealed higher bSi content and burial efficiency in summer (1.13 +/- 0.38%, 57.4 +/- 25.7%) than in spring (0.86 +/- 0.17%, 25.3 +/- 5.2%), although spring diatom concentrations are 1.5 to 2 times higher. In contrast to spring hydrodynamic conditions, which can enhance the vertical mixing and favor bSi recycling, summer stratification constrains abundant P. sulcata and other diatoms living below the mixed layer. This not only promotes bSi production but also facilitates their deposition and burial in sediments. The results provide important insights into the effects of diatom species shifts on bSi cycling and indicate that the seasonal dominance of heavily silicified species in the diatom community, associated with hydrodynamic sedimentary conditions, could greatly affect the bSi cycling in the modern ocean. |
| WOS关键词 | BOHAI SEA ; BIOGEOCHEMICAL CYCLE ; SURFACE SEDIMENTS ; PARALIA-SULCATA ; SI CYCLE ; DISSOLUTION ; OCEAN ; PHYTOPLANKTON ; WATERS ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001585468200001 |
| 资助机构 | NSFC Shiptime Sharing Project |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41435]  |
| 专题 | 科研支撑平台_海岸带综合调查中心 |
| 通讯作者 | Liu, Dongyan |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China 2.Minist Nat Resources, East China Sea Ecol Ctr, Key Lab Marine Ecol Monitoring & Restorat Technol, Shanghai, Peoples R China 3.Beijing Osees Technol Co Ltd, Beijing, Peoples R China 4.Minist Ecol & Environm, Taihu Basin & East China Sea Ecol Environm Supervi, Ecol Environm Monitoring & Sci Res Ctr, Shanghai, Peoples R China 5.East China Normal Univ, Inst Ecochongming, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Mengfan,Zhou, Hao,Wang, Xiaofeng,et al. Increased Heavily Silicified Diatoms Modulate the Biogenic Silica Deposition in the Yellow Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2025,130(10):19. |
| APA | He, Mengfan,Zhou, Hao,Wang, Xiaofeng,Dong, Xiaowei,Wang, Yujue,&Liu, Dongyan.(2025).Increased Heavily Silicified Diatoms Modulate the Biogenic Silica Deposition in the Yellow Sea.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,130(10),19. |
| MLA | He, Mengfan,et al."Increased Heavily Silicified Diatoms Modulate the Biogenic Silica Deposition in the Yellow Sea".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 130.10(2025):19. |
入库方式： OAI收割
来源：烟台海岸带研究所
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