中国地质调查2026，Vol.13Issue(2)：94-105,12.DOI:10.19388/j.zgdzdc.2025.129
基于空间统计分析方法的沉积动力分析
Sedimentary dynamics analysis based on spatial statistical analysis methods:A case study of the western North Yellow Sea
摘要
Abstract
Based on the spatial statistical analysis methods,the authors in this paper studies the spatial autocorre-lation of particle size components in marine sediments using semi variogram function,Moran index,and geograph-ically weighted regression.The surface sediments in the western North Yellow Sea were taken as the research ob-ject,and the main factors affecting particle size distribution were analyzed.Besides,the applicability of the main spatial statistical methods in analyzing marine sedimentary dynamics was evaluated.The results indicated that the range value indicated by the semi variogram function was consistent with the lag distance of the Moran index and had a good correspondence with the particle transport distance in the study area.The Moran's index anisotropy in-dicates that the study area had a main runoff direction of 135°,with a large lag distance,and relatively small lag distances in other directions,which was consistent with the main transport direction of the particle size trend mod-el.The analysis of cold and hot spots showed that the northern coast of Zhifu Island is a sand content cold spot ar-ea and an clay content hot spot area,while the central part of the study area was an insignificant area.Geographi-cally weighted regression model also showed that sediment particles didn't change linearly with water depth.Com-prehensive analysis showed that the northern coast of Zhifu Island and areas with deep water depth of 40 m in the northeastern of the study area were mainly controlled by weak currents and cold water masses,respectively,While the central part of the study area was affected by the 135° direction current in Bohai Strait,resulting in an in-crease in sand content.This study could expand the scope of research on the distribution and influencing factors of marine surface sediments,and proposed some ideas for larger scale spatial heterogeneity studies.关键词
北黄海/空间统计分析/地统计分析/半变异函数/莫兰指数Key words
North Yellow Sea/spatial statistical analysis/geostatistical analysis/semi variogram function/Moran's index分类
海洋科学引用本文复制引用
阎琨,王洪松,刘淑亮,鲍宽乐,李梦婷,吴淑玉,袁庆政..基于空间统计分析方法的沉积动力分析[J].中国地质调查,2026,13(2):94-105,12.基金项目
中国地质调查局"胶东北部海岸带与岛礁综合地质调查(编号:DD20220990)""战略性矿产勘查岩矿测试技术支撑(烟台中心)(编号:DD20243133)""黄河口海岸带地质环境调查与监测(编号:DD20240300301)""山东省蓬莱市幅等3幅1∶5万矿产地质调查(编号:DD20240206320)"、自然资源综合调查指挥中心科技创新基金"2.28Ma年以来渤海西部古河道时空分布及有机碳埋藏成因研究(编号:KC20220011)""北黄海泥质区黑碳记录及影响机制研究(编号:KC20240016)"及自然资源部海底科学重点实验室开放基金"南黄海盆地中部隆起石炭纪—早二叠世非均质孔隙型碳酸盐岩储层刻画技术及油气潜力分析(编号:KLSG2304)"联合资助. （编号:DD20220990）
