泉州市砂质海岸侵蚀特征及原因分析  

Characters of sand beach erosion in Quanzhou and it causes

作　　者：王广禄[1] 蔡锋[1] 苏贤泽[1] 雷刚[1] 

机构地区：[1]国家海洋局第三海洋研究所,福建厦门361005

出　　处：《台湾海峡》2008年第4期547-554,共8页Journal of Oceanography In Taiwan Strait

基　　金：国家908专项资助项目(908-02-03-04)

摘　　要：基于泉州市沿岸岸滩侵蚀状况调查,结合海岸动力地貌学知识研究,分析泉州市沿岸岸滩侵蚀状况.调查岸段有32个,对其进行采样拍照及侵蚀现状描述,对7个岸段进行了剖面调查及沉积物分析.研究表明泉州市沙质海岸以岬控岸和沙坝——泻湖为主,岬控岸的沉积物和剖面表现为中细粒沉积和岸坡由近岸向海变平缓,而沙坝——泻湖岸则以粗粒沉积和岸坡起伏不平为特征,沉积物特征、沿岸输沙、平衡剖面及动力地貌均反映了泉州砂质海岸的侵蚀状况.在全球海平面上升的大背景下,除特大自然灾害影响,泉州近海域的人为活动恶化了海岸侵蚀的程度,其中以海砂开采最为严重.Based on the data from the investigation of coast morphodynamics in Quanzhou, the erosion status of Quanzhou beach is studied. Among them 32 sand beaches were studies with photos and descriptions of erosion status and 7 beaches were chosen for profile investigation and sediment analysis. It shows that the cape-bay coast and barrier-lagoon coast are the major types of Quanzhou sandy beach. Middle fine sediment and the coast slope flatting towards the sea is the character of cape-bay coast, while the coarse sediment and accidented beach slope in cape-bay coast is the characteristic of barriers. Accordingly, the littoral sand transportation, balance profile and morphodynamies are all results of the present status of cost erosion in Quanzhou. It is concluded that besides global sea level rising and super disaster, human exploration has greatly accelerated the coast erosion in Quanzhou, especially, the sand evacuation on the beach.

关 键 词：海岸侵蚀 沙质海岸 泉州市 

分 类 号：P737[天文地球—海洋地质]