| 引用本文： |
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李志林,张潇文,陶慧敏,谷伟丽,张娟,赵玉庭,王立明,金晓杰.莱州湾沉积物中硫化物的分布特征及其影响因素[J].海洋开发与管理,2025,42(3):96-105
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| 摘要: |
| 文章基于2019—2021年3个航次莱州湾沉积物中的硫化物、有机碳、重金属及沉积物粒径等数据，分析了莱州湾沉积物中硫化物的分布特征及影响因素，结果表明：2019—2021年莱州湾沉积物中硫化物的含量范围分别为4.35~138.96 mg/kg、3.96~100.63 mg/kg和0.35~191.17 mg/kg，3年平均含量为（36.37±40.76）mg/kg，界河口、潍坊港周边以及莱州湾中部海域硫化物含量较高。莱州湾沉积物中硫化物与有机碳含量呈极显著正相关，径流输入的有机质为硫酸盐还原菌还原硫酸盐生成硫化物的过程提供了物质基础。硫化物含量与重金属（汞除外）呈显著正相关，径流及工业生产输入的重金属通过生成难溶的金属硫化物对沉积物中硫化物的分布产生重要影响。沉积环境条件对莱州湾沉积物中硫化物的形成也至关重要，较小的粒径有助于硫化物的生成和积累。潍坊港附近海域沉积物中硫化物含量较高，长期的生产作业活动引起沉积环境缺氧是造成该海域硫化物含量较高的重要原因。 |
| 关键词: 莱州湾 沉积物 硫化物 影响因素 |
| DOI：10.20016/j.cnki.hykfygl.2025.03.009 |
| 投稿时间：2024-05-15修订日期：2025-02-17 |
| 基金项目:山东省海洋生态环境监测项目；山东省海洋生态修复重点实验室开放基金项目（201910）. |
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| Distributions and Influencing Factors of Sulfide in Sediments of Laizhou Bay |
| LI Zhilin,ZHANG Xiaowen,TAO Huimin,GU Weili,ZHANG Juan,ZHAO Yuting,WANG Liming,JIN Xiaojie |
| Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute |
| Abstract: |
| Based on the data of sulfide, organic carbon, heavy metals and grain size of the sediments of Laizhou Bay from 2019 to 2021, the distribution characteristics and influencing factors of sulfide in the sediments were studied. The results showed that the content of sulfide from 2019 to 2021 ranged from 4.35 to 138.96 mg/kg, 3.96 to 100.63 mg/kg and 0.35 to 191.17 mg/kg, respectively. The average content of sulfides in sediments from 2019 to 2021 was (36.37 ± 40.76) mg/kg. The content of sulfide in sediments was higher in the Jiehe estuary, Weifang Port and inner area of Laizhou Bay. There was a significant positive correlation between sulfide and organic carbon. The organic matter input from runoff provided the material basis for the process of sulfate reduction bacteria reducing sulfate to produce sulfide. The content of sulfide was positively correlated with heavy metals. The heavy metals input from runoff and industrial production had a significant impact on the distribution of sulfides in sediments by generating insoluble metallic sulfides. The sedimentary environment conditions were also crucial to the formation of sulfide in Laizhou Bay sediments, and smaller sediment particle sizes were conducive to the formation and accumulation of sulfide. The long-term production activities in Weifang Port had caused hypoxia in the sedimentary environment, which was an important reason for the high sulfide content in the sediment. |
| Key words: Laizhou Bay,Sediments, Sulfide, Influencing factors |
