The influences of Yellow River input and nutrient dynamics on colloidal Fe migration in the Bohai Sea, China

被引：0
|
作者：
Lu, Yuxi [1 ,2 ]
Wang, Xiaofeng [1 ,2 ]
Pan, Dawei [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
[2] Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
MARINE ENVIRONMENTAL RESEARCH | 2024年 / 198卷
基金：
中国国家自然科学基金;
关键词：
Bohai sea; Colloidal Fe; Nutrient; Migration; Biogeochemical characteristics; DISSOLVED ORGANIC-MATTER; TRACE-ELEMENTS; ESTUARINE WATERS; HEAVY-METALS; IRON; BEHAVIOR; CARBON; PHYTOPLANKTON; KINETICS; FLUXES;
D O I：
10.1016/j.marenvres.2024.106553
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The coupling relationship between the <1 kDa, 1-3 kDa, 3-10 kDa, 10-100 kDa, and 100 kDa-0.45 mu m Fe fractions and the environmental factors in the Bohai Sea (BS) was investigated. The 1-100 kDa Fe in the surface water exhibited a non-conservative phenomenon during the river-sea mixing process, which was related to the removal of colloidal Fe via flocculation during this process. For the bottom water, the ligands released by the sediments may form additions to the <100 kDa Fe. The COC and DOC were mainly closely related to the behavior of the Fe in the bottom water. The <1 and 3-10 kDa Fe was mainly significantly positively correlated with the DOC, while the <100 kDa-0.45 mu m Fe was significantly negatively correlated with the DOC. <100 kDa LMW colloidal Fe exhibited more synergistic behavior with easily absorbed ammonium salts.
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页数：12
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