1975—2020年烟台芝罘湾海湾形态变化及驱动因素  

Shape changes and driving factors of Zhifu Bay in Yantai from 1975 to 2020

作　　者：王菡 刘宁 薛岩 孙贵芹 魏潇 徐艳东 WANG Han;LIU Ning;XUE Yan;SUN Guiqin;WEI Xiao;XU Yandong(Shandong Provincial Key Laboratory of Restoration for Marine Ecology,Shandong Marine Resource and Environment Research Institute,Yantai 264006,China;College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;Marine Development Bureau of Yantai Economic&Technological Development Area,Yantai 264006,China)

机构地区：[1]山东省海洋资源与环境研究院山东省海洋生态修复重点实验室,山东烟台264006 [2]上海海洋大学海洋科学学院,上海201306 [3]烟台经济技术开发区海洋经济发展局,山东烟台264006

出　　处：《测绘通报》2023年第4期10-15,共6页Bulletin of Surveying and Mapping

基　　金：国家海洋局海域管理技术重点实验室基金(201608);山东省海洋软科学研究课题(2021012);山东省海域使用后评估及海洋生态保护修复工作技术支撑(37000022P11002010011E)。

摘　　要：海湾是海岸带综合开发利用的主要场所,研究海湾形态变化及驱动因素,可为海湾的开发利用与保护修复提供科学依据。以烟台芝罘湾为研究区域,基于Landsat遥感影像提取1975—2020年10个时相的海湾空间信息,进而从海湾岸线开发利用程度、海湾面积、形状、重心分布4个方面分析海湾形态变化时空特征及驱动因素。结果表明,1975年以来,研究区海湾的形态变化显著且复杂,主要体现为:海湾岸线的开发利用程度持续增强,岸线呈背陆向海移动;海湾面积逐渐萎缩,45年来减少了25.99%,主要集中在1975—2000年;海湾形状指数由1.33增加至2.23,海湾形状总体趋向复杂;海湾重心位置背陆向海迁移,重心整体向海位移647.79 m。总体而言,填海造地建设港口码头和近岸围海养殖是导致海湾形态发生变化的主要原因。The bays are major places for comprehensive development and utilization of coastal zone,and study on the shape change and driving factor of the bays will help to provide a scientific basis for their development,utilization,protection and restoration.Taking the Zhifu Bay(ZFB)as the research object,its spatial information of 10 time phases from 1975 to 2020 is extracted from Landsat remote sensing images,and its shape changes,characteristics and driving factors are analyzed from four aspects:the degree of shoreline development and utilization,the area of ZFB,the shape of ZFB,as well as the distribution of centroid of ZFB.The results show that since 1975,the shape change of ZFB in the study area has been significant and complex.The development and utilization of the gulf shoreline continue to increase,and the shoreline generally moves from land to the sea;the area of ZFB gradually shinks,decreasing by 8.82 km2 in 45 years,accounting for 25.99%of the total area in 1975;the shape index of ZFB increases from 1.33 to 2.23,and the bay shape tends to be complex;during the study period,the centroid of ZFB has generally migrated to the sea by 647.79 m.In general,the reclamation for port terminals and coastal culture pond is an important reason for the changes of ZFB.

关 键 词：遥感 地理信息系统 芝罘湾 海湾形态 驱动因素 

分 类 号：P237[天文地球—摄影测量与遥感]