摘要
三亚崖州湾是海南自贸港科技发展的前沿阵地,摸清其地质环境是科技发展规划的基础条件。选取水深、坡度、沉积物环境质量、古河道或古湖泊面积、沙波面积、沙脊面积、软土面积和软土厚度共8个影响因素,采用K-means聚类法、层次分析法和熵权法对研究区适宜性进行定量分区,共划分适宜性好、较好、中等、较差和差五个等级,分析不同影响因素对崖州湾适宜性的影响,总结五个分区的地质环境特征。研究结果表明适宜性最好区位于研究区中北部,其次是中南部,两翼地质环境质量最差,中等区镶嵌分布于崖州湾的外缘;建议优先考虑适宜性最好区进行规划开发,其次是适宜性较好区。文章先用K-means聚类法对影响因素分级,再用层次分析法和熵权法计算评价因子的主客观权重,形成一种主客观结合的科学评价方法,并运用到地质环境开发适宜性评价中,很好地划分出优选区。评价结果可为研究区开发规划及防灾减灾提供基础地质依据,同时具有良好的借鉴作用。
As a strategic area for the development of the Hainan Free Trade Port's science and technology,further elucidation of the geological environment of Yazhou Bay in Sanya is a fundamental requirement for the development planning of science and technology.By selecting eight influencing factors,such as water depth,slope,sediment quality,area of ancient channels or ancient lakes,area of sand waves,area of sand ridges,area of soft soil,and thickness of soft soil,the suitability of the study area was quantitatively analyzed and evaluated via the K-means clustering method,analytic hierarchy process,and entropy weight method.The study area was divided into the following five suitability levels:good,relatively good,moderate,relatively poor,and poor.The impact of the different influencing factors on the suitability of Yazhou Bay was analyzed,and the geological environmental characteristics of the five zones were summarized.Results revealed that the area with the best suitability is located in the central-northern part of the study area,followed by the central-southern part;furthermore,the geological environmental quality of the two wings is the worst,and the moderate zone is distributed along the outer edge of Yazhou Bay.It is recommended to prioritize the planning and development of zones with good suitability,followed by the zones with relatively good suitability.In this study,the K-means clustering method was first employed to classify the influencing factors,and then the analytic hierarchy process and entropy weight method were utilized for the calculation of the subjective and objective weights of the evaluation factors,forming a scientific evaluation method combining the subjective and objective aspects.This method,when applied to the suitability evaluation of development in the geological environment,can effectively identify preferred areas.The results of this study can be used as references as well as offer a geological basis for development planning and disaster prevention in the study area.
作者
覃茂刚
曾维特
龙根元
陈波
汪贵锋
杨朝云
张匡华
邓思迪
QIN Maogang;ZENG Weite;LONG Genyuan;CHEN Bo;WANG Guifeng;YANG Chaoyun;ZHANG Kuanghua;DENG Sidi(Hainan Provincial Key Laboratory of Marine Geological Resources and Environment,Haikou 570206,Hainan,China;Marine Geological Institute of Hainan Province,Haikou 570206,Hainan,China)
出处
《地震工程学报》
CSCD
北大核心
2023年第5期1035-1045,共11页
China Earthquake Engineering Journal
基金
海南省海洋地质资源与环境重点实验室开放课题(22-HNHYDZZYHJKF030,HNHYDZZYHJKF003)
海南省自然科学基金青年基金项目(421QN369)
海南省科协青年科技英才创新计划项目(QCXM202008)
海南岛海岸带综合地质调查与评价项目
国家自然科学基金项目(42366003)。
关键词
崖州湾
地质环境
适宜性
层次分析法
熵权法
Yazhou Bay
geological environment
suitability
analytic hierarchy process
entropy weight method
