厦门湾及邻近海域沉积物分布特征和沉积速率     

刘治帅  杨旸  陈坚  王爱军  李东义  汪亚平 《海洋科学》2012,36(6):1-8

2007年和2010年在厦门湾及邻近海域进行底质表层沉积物和柱状岩心样品采集,并进行粒度分析及粒度参数计算,获得了研究区底质表层和柱状沉积物样品的粒度分布特征.结果表明,厦门湾海域沉积物类型多样,以粉砂质砂和砂质粉砂为主.平均粒径介于?1.5Φ~7.5Φ之间.采用 Gao-Collins粒径趋势分析方法,发现九龙江口的沉积物主要呈东南方向净输运,而大金门南侧海域沉积物则有向九龙江口输运的趋势,同安湾内沉积物由海岸向湾中央输运;厦门东部海域沉积物向北输运,翔安南部海域沉积物向同安湾口以及澳头近岸输移.对柱状岩心进行放射性同位素210Pb 测年分析,计算得到九龙江口沉积速率为2.62 cm/a,进而探讨了九龙江口的沉积环境演化特征,研究成果可为区域资源开发和环境保护提供科学依据  相似文献   

岛群资源供给能力评价方法研究          下载免费PDF全文

吴姗姗  方春洪  刘治帅 《海洋开发与管理》2014,31(8):1-4

岛群相对于单岛优势明显,岛群资源开发将是未来海岛经济发展的重要方向。文章借鉴有关领域的研究成果,探讨了岛群资源供给能力的内涵、评价步骤和评价方法,对于引导群岛资源开发具有重要意义。  相似文献   

我国海水淡化用海管理存在的问题及对策分析          下载免费PDF全文

张静怡  徐伟  刘治帅  刘淑芬  曹蕾 《海洋开发与管理》2015,32(8):29-34

随着国家的大力支持,我国海水淡化产业发展迅猛,无论在政策和技术上都取得了较大突破,但随之而来在管理上也产生了很多问题。文章介绍了我国海水淡化用海的发展情况和管理现状,通过分析海水淡化用海的海域使用特征,梳理出我国海水淡化用海的管理要点,并针对我国海水淡化管理中存在的问题,提出管理对策建议。  相似文献   

鸭绿江河口西岸潮滩沉积对流域人类活动的响应     

石勇  刘治帅  高建华  杨旸  王亚平 《海洋学报(英文版)》2017,36(4):54-63

The response to the catchment changes of the sedimentary environment of the western intertidal flat of Yalu River Estuary was investigated by analyzing the vertical variations of the grain size of sediment cores,along with the hydrologic data and human activities in the catchment.The results demonstrated a stepwise decreasing trend for the variations of both the sediment load and water discharge into the sea,which could be divided into three stages as 1958–1970,1971–1990 and 1991–2009.Reservoir construction and the changes of catchment vegetation coverage turned out to be the two predominant contributors to the changes.There are four periods for the variation of the sensitive components of the sediment cores from 1940 to 2010,i.e.,1940–1950,1951–1980,1981–1990 and 1991–2010.The vertical distribution of grain size in the cores mainly varied with the changes of vegetation coverage in the catchment and reservoir construction from 1960 to 1980,whereas it varied depending on the intensity of water and soil erosion in the catchment from 1980 to 1990.Despite the further reduction of the water and sediment input into the sea from 1990 to 2009,this period was characterized by coarsening trends for the grain size of sediment in the estuarine intertidal flat and correspondingly,the significantly increased silt contents of the sensitive component.  相似文献