海洋地质前沿2024，Vol.40Issue(3)：14-21,8.DOI:10.16028/j.1009-2722.2023.050
渤海海域地质环境稳定性定量评价
Quantitative evaluation of the geological environment stability in the Bohai Sea
摘要
Abstract
The Bohai Sea has a superior geographical position.The development of its marine economy asks ur-gently for the support of geological environment data.Most present studies usually are concentrated on some indi-vidual seas,and lack of the systematic thinking of different seas using actual testing data.Based on the available data of environmental geological factors in marine regional geological survey since 2008,The Bohai Sea was di-vided into grid cells and the characteristic parameters of its main environmental geology factors were quantified.An indicator system of the evaluation of the geological environment stability was established based on the topo-graphic or ground environmental change,uneven bearing stratum,and active tectonics.The geological environ-ment stability in the study area was quantitatively evaluated by using expert-analytic hierarchy process and fuzzy mathematics.Results suggest that the geological environment stability in Bohai Sea was divided into five grades:poor,relatively poor,medium,relatively good,and excellent.The stability in most of Bohai Sea is generally in good condition at the present.The regions in poor and relatively poor grades of stability accounts for 10%,partic-ularly in the adjacent area of the Yellow River Delta,where the unstable environmental geology factors active faults,earthquake epicenter,shallow gas and the factors related to the tide are comparatively dense,with relat-ively large hazard.This study is valuable for future exploitation and utilization of natural resources,eco-environ-ment conservation in Bohai Sea.Meanwhile,the quantitative evaluation method of this study provided a reference for the study of marine environmental geology.关键词
渤海/环境地质因素/地质环境稳定性/定量评价Key words
Bohai Sea/environmental geology factors/geological environment stability/quantitative evaluation分类
海洋科学引用本文复制引用
陈晓辉,李日辉,温珍河,付军,徐晓达..渤海海域地质环境稳定性定量评价[J].海洋地质前沿,2024,40(3):14-21,8.基金项目
山东省自然科学基金"黄河三角洲周边海域灾害地质因素定量研究"(ZR2022MD098) （ZR2022MD098）
中国地质调查局项目"1:25万东海重点海域海洋区域地质调查"(GZH201500203),"全国陆域及海区地质图件更新与共享"东部海区区域地质志项目(DD20190377),"东部重点海域海洋区域地质调查"(DD20221710) （GZH201500203）
