The Effects of Reclamation Activity and Yellow River Runoff on Coastline and Area of the Laizhou Bay,China

作     者：XU Yandong GAO Huiwang WEI Xiao ZHU Jinlong XU Yandong;GAO Huiwang;WEI Xiao;ZHU Jinlong

作者机构：Key Laboratory of Marine Environment and EcologyMinistry of EducationOcean University of ChinaQingdao 266100China Shandong Provincial Key Laboratory of Restoration for Marine EcologyShandong Marine Resource and Environment Research InstituteYantai 264006China Laboratory for Marine Ecology and Environmental SciencePilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2021年第20卷第3期

页      面：729-739页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 

基　　金：This study was financially supported by the National Science Foundation of China(NSFC)-Shandong Joint Funds(Nos.U1606404,U1906215) the Ocean Spe-cial Funds for Scientific Research on Public Causes(No.201205001) 

主　　题：morphological change coastal reclamation Yellow River runoff Laizhou Bay 

摘      要：Study on morphological changes of a bay can help to identify the effects of anthropogenic activities on coastal environ-ment and guide the exploration of marine *** this paper,morphological data including coastline and water areas in five discrete years between 1968 and 2015 were selected and extracted from the remote sensing images and historical marine charts to study the morphological changes in Laizhou Bay(LZB),one of the bays in the southwest of the Bohai Sea.A systematic analysis on spatial variations of the coastline and the surface areas of different types of waters in LZB was *** results showed that the surface area of LZB was decreased by 1253.2km^(2)in the last half century,which is 17.4%of the total in the *** areas of the natural wetland and the intertidal zone were decreased by 17.2%and 56.1%,respectively,and the average water depth varied from 9.05 m to 8.16m at low tide level from 1968 to *** coastline and shape variations of the bay turned to be complex after the 1980s,and the shape index of LZB showed an increasing trend in more recent *** centroid of the bay generally migrated to the northeast direction,i.e.,the direction of the center of the Bohai Sea,and the shrinking direction of the bay was consistent with the migration direction of the *** reclamation area during 1968-2015 in LZB was 1201.7km^(2),and 94.1%was in the inter-tidal *** overall morphological change of the bay during the last half century was mainly controlled by the coastal reclamation activities,and the Yellow River runoff including the river course change and sediment load variation was also an important control-ling factor.