海洋学研究 ›› 2021, Vol. 39 ›› Issue (4): 123-131.DOI: 10.3969/j.issn.1001-909X.2021.04.012

• • 上一篇    

1986—2017年舟山群岛不同主体功能海岛岸滩变化特征分析

  

  1. 1.卫星海洋环境动力学国家重点实验室，浙江 杭州 310012; 
    2.自然资源部第二海洋研究所，浙江 杭州 310012；
    3.浙江大学地球科学学院，浙江 杭州 310027
  • 出版日期:2021-12-15 发布日期:2022-01-25
  • 通讯作者: 张华国(1977－)，男，研究员，主要从事近海与海岸带遥感监测研究
  • 作者简介:曹雯婷(1990－)，女，浙江省嘉善县人，博士，助理研究员，主要从事海岸带遥感监测研究,Email：caowt@sio.org.cn。
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金项目(JG2105)

Change characters of coastline and tidal flat in the islands with different principle functions in the Zhoushan Archipelago from 1986 to 2017

  1. 1.State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China; 

    2.Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; 

    3.School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
  • Online:2021-12-15 Published:2022-01-25

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摘要： 基于逐年30 m分辨率的岸滩遥感监测数据集(1986—2017年)，开展舟山群岛不同主体功能海岛岸滩的时空演化特征分析。结果表明，在1986—2017年期间，受剧烈围填海活动的影响，舟山群岛的大量水域(152 km2)和潮滩(18 km2)被围填成陆地，岸滩不断向海推进，政策是岸滩总体变化的主要驱动因素。不同海岛主体功能类型的岸滩变化特征差异显著：(1)综合利用岛、临港工业岛、港口物流岛、滨海旅游岛的围填海占研究区围填海总量的96%；(2)海洋科教岛和现代渔业岛的岸滩变化幅度较小，占研究区围填海总量的4%；(3)海洋生态岛和清洁能源岛的岸滩资源保育良好，稳定不变。

关键词: 舟山群岛, 海岛, 围填海, 时间序列, 岸滩变化

Abstract:  The temporal and spatial change characters of coastline and tidal flat in the islands with different principle functions in the Zhoushan Archipelago were analyzed, using a coastal remote sensing monitoring dataset with 30 m spatial resolutions at annual interval from 1986 to 2017. The results suggested that the coastlines in Zhoushan Archipelago advanced toward the sea, with many water areas(152 km2) and tidal flats(18 km2) reclaimed into lands and the government policies were the main driven factors. The change characters were various among the islands with different principle functions. In particular, the land reclamation was significant in the islands with the principle functions of comprehensive development, coastal industry, coastal tourism, and harbor and logistics, accounting for 96% of the archipelagos new lands. The land reclamation was slight in the islands with marine science and education and scientific fishery functions, accounting for 4% of the archipelagos total new lands. Meanwhile, the coast was stable and well protected in the islands with ecological conversation and clean energy functions. The results could provide scientific basis for coastal zones ecological protection and restoration projects, as well as the marine principle functional zoning.

Key words: Zhoushan Archipelago, island, land reclamation, time series, coastal dynamics

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