雷州半岛灯楼角砂质海岸的侵蚀及防治  

Erosion and prevention of the sandy coast of Dengloujiao,Leizhou Peninsula,China

作　　者：王彦希 屈建军 沈城 钟帅 李君 Wang Yanxi;Qu Jianjun;Shen Cheng;Zhong Shuai;Li Jun(College of Urban and Environmental Sciences,Northwest University,Xi'an 710127,China;Guangdong Provincial Laboratory of Southern Marine Science and Engineering,Guangzhou 511458,China;Guangdong Zhanjiang Mangrove National Nature Reserve Administration,Zhanjiang 524100,Guangdong,China;College of Geography and Environmental Science,Hainan Normal University,Haikou 571158,China;Suzhou Zhongke Tianqi Remote Sensing Technology Co.,LTD.,Suzhou 215010,Jiangsu,China)

机构地区：[1]西北大学城市与环境学院,陕西西安710127 [2]南方海洋科学与工程广东省实验室(广州),广东广州511458 [3]广东湛江红树林国家级自然保护区管理局,广东湛江524100 [4]海南师范大学地理与环境科学学院,海南海口571158 [5]苏州中科天启遥感科技有限公司,江苏苏州215010

出　　处：《中国沙漠》2025年第1期10-19,共10页Journal of Desert Research

基　　金：南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0601)。

摘　　要：珊瑚礁海岸是中国常见海岸类型,近年来海岸侵蚀导致珊瑚礁生长环境遭到严重破坏。灯楼角海岸的侵蚀日益严重,大量搬运自海岸的沙泥质片状堆积在岛礁床面,影响珊瑚礁的栖息和生长环境。运用遥感影像数据,结合ArcGIS分析方法,对2010-2020年灯楼角海岸线的侵蚀程度进行解译和评估,对侵蚀原因进行简要分析,提出了相应的防护措施。结果表明:(1)灯楼角海岸线侵蚀面积呈现增长趋势且在2019-2020年达到最大,其中断面Ⅱ侵蚀面积10年来一直处于较大值;在2015-2017年断面Ⅱ侵蚀后退距离最为严重,10年间灯楼角海岸线侵蚀明显且速度加快。(2)砂质海岸是海岸侵蚀的物质基础,气候因素与海平面上升为根本因素,珊瑚礁死亡、风暴天气与人类活动加剧了海岸侵蚀速率。对此提出相应的防护措施,同时也为砂质珊瑚礁海岸侵蚀防治提供参考。Coral reef coasts are a common type of coast in our country,but widespread coastal erosion has led to severe damage to the growth environment of coral reefs in recent years.The erosion phenomenon at Denglouji-ao Coast is also becoming increasingly serious,with large amounts of sandy mud being transported from the coast and accumulating in reef beds,affecting the habitat environment and growth of coral reefs.In this study,we use remote sensing image data and GIS analysis methods to interpret the erosion degree of Dengloujiao Coast from 2010 to 2020,and briefly analyze its causes and propose protective measures.The results show that:(1)The erosion area of Dengloujiao Coastline showed an increasing trend and reached its maximum in 2019-2020,with section II having a consistently large erosion area over the past decade,and the most severe erosion in section II occurred from 2015 to 2017.The erosion of Dengloujiao Coastline has been significant over the past decade,and the rate has accelerated.(2)Based on field investigations,it was found that coastal erosion at Den-gloujiao is related to many factors.The sandy coastline serves as the material foundation for coastal erosion,while climate factors and rising sea levels are the fundamental causes.Coral reef death,stormy weather,and hu-man activities exacerbate the rate of coastal erosion.Corresponding protective measures are proposed based on the varying degrees of coastal erosion to mitigate erosion hazards and ensure the safety of the Dengloujiao coast-line,creating a suitable living environment for corals.These measures also serve as a reference for the prevention and control of erosion in sandy coral reef coasts.

关 键 词：砂质海岸线 珊瑚礁 遥感解译 侵蚀变化 防浪固沙障 

分 类 号：S157.2[农业科学—土壤学]