海洋地质前沿2025，Vol.41Issue(6)：78-92,15.DOI:10.16028/j.1009-2722.2024.069
荣成天鹅湖内外表层沉积物常量元素含量分布差异及其影响因素
Differences in the distribution of constant element content in surface sediments inside and outside Rongcheng Swan Lake and their influencing factors
摘要
Abstract
In September 2020 and September 2023,surface sediment samples fromsediments were sampled at 44 stations inside and outside the using a clam sampler in Swan Lake inand Rongcheng Bay,Shandong Peninsula,East China,and the sample particle size and major elements were tested.Based on the test results,the plane distri-bution characteristics and differences of grain size and major elements inside and outside the lagoon were ana-lyzed.Combined with correlation analysis,hydrodynamic numerical simulation,cluster analysis,principal com-ponent analysis and other methods,the main control factors of the distribution of major elements were explored.Results show that the sediment components of Swan Lake are mainly sand,and the sediment components of Rongcheng Bay are mainly silt.The grain size of Swan Lake sediment is obviously coarser than that of Rongcheng Bay.The average contents of SiO2 and P2O5 in the sediments of Swan Lake(75.74%and 0.055%)were higher than those in Rongcheng Bay(61.73%and 0.053%),and the contents of major elements such as Al2O3,TFe2O3 and MgO were lower than those in Rongcheng Bay.Overall,the distribution of SiO2 is opposite to the distribution trend of average particle size,and the distribution of most other major elements was similar to the distribution of average particle size.The contents of most major elements in Rongcheng Bay increased gradually from the shore to the open sea,and those in Swan Lake increased gradually from the shore to the lake.Particle size was the main factor affecting the distribution of most major elements(SiO2,Al2O3,TFe2O3,MgO,and so on)in the two lakes,and its impact on Rongcheng Bay was significantly higher than that on Swan Lake.The distribution of K2O in the sediments of Swan Lake was affected by the erosion materials and their grain size from Cheng-shantou coast,and that in Rongcheng Bay was mainly affected by erosion materials.The distribution of P2O5 in the sediments of Swan Lake was mainly affected by human activities and seagrass beds,while that in Rongcheng Bay was mainly affected by grain size.关键词
荣成湾/天鹅湖/表层沉积物/常量元素/影响因素Key words
Rongcheng Bay/Swan Lake/surface sediments/geochemical characteristics/influencing factors分类
海洋学引用本文复制引用
林炜,李峰,张晓举,孙菲菲,朱龙海,胡日军..荣成天鹅湖内外表层沉积物常量元素含量分布差异及其影响因素[J].海洋地质前沿,2025,41(6):78-92,15.基金项目
山东省自然科学基金"近50年来山东半岛滨海沙滩侵蚀演变的定量评价及其影响因素"(ZR2019MD037) （ZR2019MD037）
