南海北部1987～1988年颗粒物质和硅藻通量的季节性变化:季风气候与El Nio的响应  

SEASONAL VARIATIONS OF PARTICULATE MATTER AND DIATOM FLUXES IN THE NORTHERN SOUTH CHINA SEA DURING 1987-1988: MONSOON CLIMATE AND El Nio RESPONSES

作　　者：郑玉龙[1] 王汝建[2] 郑连福[1] 陈荣华[1] 陈建芳[1] 

机构地区：[1]国家海洋局海底科学重点实验室,杭州310012 [2]同济大学海洋地质教育部重点实验室,上海200092

出　　处：《第四纪研究》2001年第4期359-365,共7页Quaternary Sciences

基　　金：中德合作项目(批准号:49776297);国家自然科学基金(批准号:49999560)联合资助

摘　　要：南海北部１９８７年９月～１９８８年１０月沉积物捕获器中颗粒物质和硅藻通量的季节性 变化受到季风气候的控制。颗粒物质与硅藻在东北和西南季风盛行期增加，在季风转变期减 少。浅层和深层的颗粒总通量、蛋白石通量、碳酸钙通量、蛋白石／颗粒总通量比值、碳酸钙／颗 粒总通量比值、有机碳／磷的比值以及浅层硅藻Ｔｈａｌａｓｓｉｏｎｅｍａ ｎｉｔｚｓｃｈｉｏｉｄｅｓ、Ｃｏｓｃｉｎｏｄｉｓｃｕｓ ｅｘｃｅｎｔｒｉｃｕｓ、Ｃｏｓｃｉｎｏｄｉｓｃｕｓ ｎｏｄｕｌｉｆｅｒ、Ｎｉｔｚｓｃｈｉａ ｍａｒｉｎａ和Ｒｈｉｚｏｓｏｌｅｎｉａ ｂｅｒｇｏｎｉｉ的通量在东北 季风期间明显地增加了，这些变化可能与１９８７年～１９８８年发生的ＥＩ Ｍｉ　ｏ事件相关。Seasonal variations of particulate matter and diatom fluxes in the northern South China Sea during 1987-1988 were overwhelmingly controlled by monsoon climate. Particulats matter and diatom fluxes increased obviously during the Northeast (November to February) and Southwest (June to September) monsoons and decreased during the transition periods between the monsoons. Particulate matter, opal, and carbonate fluxes and opal/particulate matter, carbonate/particulate matter, organic carbon/ phosphate ratios at the shallow and deep traps enhanced anomalously during the Northeast monsoon (November 1987-Febuary 1988), and five species fluxes (Thalassionema nitzschioides, Coscinodiscus excentricus, Coscinodiscus nodulifer, Nitzschia marina and Rhizosolenia bergonii) at the shallow trap also increased abnormally during this time, which might be attributable to the El Ni o event during the period of 1987-1988.

关 键 词：颗粒物质 硅藻通量 季风气候 南海 厄尔尼诺事件 季节性变化 

分 类 号：P732[天文地球—海洋科学]