摘要
海岸沙丘记录了海岸带动力地貌系统的演变过程,蕴含着丰富的气候变迁、海平面变化、环境演变等信息,在全球变化研究中具有重要的指示作用。针对其受极端天气、海岸侵蚀以及人类活动等影响导致的动态变化,提出利用UAV LiDAR技术,对海阳市万米海岸沙丘形态变化进行三期全覆盖式面域监测,研究结果表明:2017年7月与2018年4月两次监测间,研究区海岸沙丘整体形态相对稳定,部分岸段沙丘前滨出现侵蚀趋势;2018年4月与10月两次监测间,海岸沙丘形态后滨基本保持不变,超过60%前缘则出现了侵蚀现象。该研究有利于下一步对侵蚀岸滩区域整治修复提供精准靶标,同时为海阳万米沙滩海洋自然保护区生态环保和海岸侵蚀防治以及环境演变提供技术支持和信息参考。
Coastal dunes record the evolution process of the dynamic geomorphological system in the coastal zone,containing rich information on climate change,sea level changes,environmental evolution,and so on.It plays an important indicative role in global change research.In response to the dynamic changes caused by extreme weather,coastal erosion,and human activities,we propose to use UAV LiDAR technology to conduct a three-stage full coverage surface monitoring of the morphological changes of the ten thousand meter coastal dunes in Haiyang.The research results indicate that from July 2017 to April 2018,the overall morphology of the coastal sand dunes in the study area was relatively stable,and there was a slight erosion trend in some sections of the sand dunes on the front shore.From April 2018 to October 2018,the morphology of coastal dunes remained largely unchanged on the backside,while slight erosion occurred at the front edge of the sand dunes.This study is beneficial for providing precise targets for the remediation and restoration of eroded beach areas in the next step,and can also provide technical support and information reference for the ecological protection,coastal erosion prevention and control,and environmental evolution of the Haiyang Ten Thousand Meters Beach Marine Nature Reserve.
作者
麻德明
田梓文
徐金燕
王勇智
林震
MA Deming;TIAN Ziwen;XU Jinyan;WANG Yongzhi;LIN Zhen(Fujian Key Laboratory of Island Monitoring and Ecological Development,Pingtan 350400,China;First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,China;Islands Research Centre,Ministry of Natural Resources,Pingtan 350400,China)
出处
《海洋环境科学》
北大核心
2025年第4期622-629,共8页
Marine Environmental Science
基金
福建省海岛资源生态监测与保护利用重点实验室开放基金(2023ZD08)
山东省自然科学基金(ZR2023MD080)
海洋公益性行业科研专项(201405028)
海洋行业标准(201810011-T)。
关键词
海岸沙丘
UAV
LiDAR
动态变化
侵蚀防治
coastal sand dunes
unmanned aerial vehicle-Light detecting and ranging
dynamic changes
erosion prevention and control
