海洋地质前沿2026，Vol.42Issue(3)：32-43,12.DOI:10.16028/j.1009-2722.2025.155
1976-2024年黄河三角洲海岸线变化分析
Analysis of shoreline changes in Yellow River Delta from 1976 to 2024
摘要
Abstract
Shoreline evolution is a critical issue of coastal zone resource management and sustainable develop-ment.Influenced by both natural processes and human activities,the coastline of the Yellow River Delta(YRD)has persistently undergone rapid changes.We investigated the dynamic evolution patterns of the YRD coastline over the past 48 years(1976 to 2024)and its response to extreme weather events by using Landsat series and GF-1 satellite imagery of the YRD and the Digital Shoreline Analysis System(DSAS).Results demonstrate that the evolution of the YRD coastline showed a trend of sediment accretion by an average annual increase in land area of 6.358 km2.Furthermore,the evolution displays distinct phase-specific characteristics,which can be categorized in-to three typical stages:(1)Rapid deposition stage(1976 to 1988,maximum rate of 1 825 m/a in coastline length);(2)The whole erosion stage(1989 to 2008,the maximum rate of-1 243 m/a);(3)Local effective siltation stage(after 2009,the current estuary siltation rate from 2016 to 2024 was 320 m/a).The sediment flux into the sea was the dominant controlling factor of shoreline evolution.Human activities directly shaped the accretion-erosion pat-tern by regulating the seasonal distribution of water and sediment,while extreme events significantly promoted the erosion under low-sediment conditions.Moreover,the impact of extreme events on the coastline showed pro-nounced spatial heterogeneity:exposed shorelines experienced heavy erosion,and some areas demonstrated recov-ery potential due to sediment replenishment.We elucidated the comprehensive response characteristics of the YRD coastline,which was characterized by"phase-specific instability,strong spatial heterogeneity,and localized resilience".These findings provided an important scientific basis for sustainable management and adaptive regula-tion strategies for this highly dynamic delta.关键词
黄河三角洲/海岸线/DSAS/极端天气/遥感影像Key words
Yellow River Delta/shoreline/DSAS/extreme weather/remote sensing imagery分类
海洋科学引用本文复制引用
籍雯煜,李广雪,史经昊,刘思雨,张蕾,李浩楠..1976-2024年黄河三角洲海岸线变化分析[J].海洋地质前沿,2026,42(3):32-43,12.基金项目
国家自然科学基金创新群体项目(42121005) （42121005）
