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A study on the shoreline change of the Jiehe Beach in the northeastern Laizhou Bay over the past 40 years based on a large number of satellite images
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Chao Yang1, Longhai Zhu1, 2, Xiaodong Zhang1, 2, *
Haiyang Xuebao | 2024, 46(12) : 13 - 25
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Haiyang Xuebao | 2024, 46(12): 13-25
• Article •
A study on the shoreline change of the Jiehe Beach in the northeastern Laizhou Bay over the past 40 years based on a large number of satellite images
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Chao Yang1, Longhai Zhu1, 2, Xiaodong Zhang1, 2, *
Affiliations
  • 1. College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
  • 2. Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, China
Published: 2024-12-31 doi: 10.12284/hyxb2024125
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In recent decades, the beaches on both sides of the Jiehe River (hereinafter referred to as Jiehe Beach) in the northeastern part of Laizhou Bay have suffered severe erosion due to reduced riverine sediment input to the sea. Additionally, the construction of coastal engineering projects such as Yulong Island (a large artificial offshore island) has made the evolution of the Jiehe Beach shoreline exceptionally complex. This paper utilizes 1186 satellite images from 1984 to 2024, employing a transect-focused method and sub-pixel shoreline recognition technology to study the evolution of the Jiehe Beach shoreline and assess the impacts of river sediment discharge and coastal engineering. The results show that the early evolution (1984−2004) of Jiehe Beach was primarily controlled by the closure and opening of the Jiehe River estuary, the alongshore movement of sand spits, and the onshore movement of sandbars, with overall erosion occurring. The later evolution (2004−2024) of Jiehe Beach was mainly influenced by the construction of coastal engineering projects such as Yulong Island, with overall accretion occurring. In today’s era of intensifying coastal development, the rational layout of coastal engineering is expected to mitigate beach erosion.

remote sensing  /  Shandong Peninsula  /  shoreline  /  estuary closure  /  artificial offshore island
Chao Yang, Longhai Zhu, Xiaodong Zhang. A study on the shoreline change of the Jiehe Beach in the northeastern Laizhou Bay over the past 40 years based on a large number of satellite images[J]. Haiyang Xuebao, 2024 , 46 (12) : 13 -25 . DOI: 10.12284/hyxb2024125
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Year 2024 volume 46 Issue 12
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Article Info
doi: 10.12284/hyxb2024125
  • Receive Date：2024-07-29
  • Online Date：2025-11-27
  • Published：2024-12-31
Article Data
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History
  • Received：2024-07-29
  • Revised：2024-10-28
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Affiliations
    1. College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
    2. Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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