摘要
崂山湾是山东省青岛市建设海洋强国的重要基地。选取崂山湾自2005年至2020年间的4期高分辨率遥感影像,运用数字岸线分析系统(DSAS)研究崂山湾的岸线时空变迁,结合当地社会和经济发展,对岸线演变的驱动力进行分析,且对进一步的海岸带生态修复做出一定的探讨。结果表明:①2005—2020年,崂山湾海岸线长度整体增长6.75 km,湾内面积减少18.01 km^(2),自然岸线减少3.41 km,人工岸线则增长10.16 km,人工岸线比例呈增长趋势。②2005—2010年,崂山湾海岸处于缓慢侵蚀状态;2010年以后,崂山湾海岸处于淤进状态,其淤进主要来源于鳌山头以北的填海造陆和滨海工程建设;2015年以后,随着海岸工程建设的逐渐完善以及城市蓝色海湾战略的实施,海岸线淤进速率相对放缓。其中,用于渔业发展的围垦养殖和城市建设进行的填海造陆和滨海工程建设等人为活动是驱动崂山湾海岸线变迁的主要因素。③针对崂山湾目前海岸线变化现状,建议通过工程措施和植被生态修复手段相结合进行综合施治,以有效推进崂山湾海岸带的生态防护和可持续发展。
Laoshan Bay is an important base for building a maritime power in Qingdao,Shandong Province.Four high-resolution remote sensing images of Laoshan Bay from 2005 to 2020 were selected,the temporal-spatial changes of the coastline in Laoshan Bay was analyzed using the Digital Shoreline Analysis System(DSAS)in consideration of local social and economic development,the driving forces of coastline evolution was determined,and future ecological restoration of the coastal zone was proposed.Results show that between 2005 and 2020,the overall length of the Laoshan Bay coastline increased by 6.75 km,the area within the bay decreased by 18.01 km^(2),the natural coastline decreased by 3.41 km,and the artificial coastline increased by 10.16 km and kept increasing.From 2005 to 2010,the coast of Laoshan Bay was in a slow erosion state.After 2010,the coast of Laoshan Bay was in a growth state,due mainly to reclamation and coastal engineering construction north of Aoshantou.After 2015,with the gradual improvement of coastal engineering construction and the implementation of the urban blue bay strategy,the growth rate of the coastline was relatively small.The factors such as reclamation and cultivation for fishery development,land reclamation for urban construction,and coastal engineering construction are the main driving factors for the change of the coastline in Laoshan Bay.In view of the current situation of coastline changes in Laoshan Bay,it is recommended to integrate engineering with vegetation ecological restoration to effectively promote ecological protection and sustainable development of the coastal zone of Laoshan Bay.
作者
朱超越
李金山
李安龙
沈昆明
王盼盼
闫志超
袁琳
ZHU Chaoyue;LI Jinshan;LI Anlong;SHEN Kunming;WANG Panpan;YAN Zhichao;YUAN Lin(College of Marine Geoscience,Ocean University of China,Qingdao 266100,China;Key Laboratry of Submarine Geosciences and Prospecting Techniques,Ministry of Education,Qingdao 266100,China;Lianyungang Xuwei Port Holding Group Co.,Ltd.,Lianyungang 222000,China)
出处
《海洋地质前沿》
CSCD
北大核心
2024年第9期63-72,共10页
Marine Geology Frontiers
基金
国家自然科学基金(42074138)。
