摘要
本文以１９８６年冬季（１月）和夏季（７月）两个航次调查资料。研究了长江口及其毗邻海域的枯丰水期的数百个海水悬浮物样品的成分和分布。悬浮颗粒物浓度变化范围，河口区，夏季为１３４．０～１８９．０ｍｇ／ｄｍ３、冬季为７１．６～２９９．０ｍｇ／ｄｍ３；而海区，冬季为６．９～１２５．５ｍｇ／ｄｍ３，夏季为３．７～７２．２ｍｇ／ｄｍ３；呈现在盐度５～２５时．水域深处地区存在着最大浑浊带，它的优势成分是矿物微粒，次为生物源颗粒硅藻。同时亦对悬浮物质的时空分布的控制因素进行了讨论。
Based on the results of two cruises of January and July 1986,the distribution and composition of the suspended matter in the Changjiang Estuary area,such as grain-size analysis,minerlogical and microbiological assays on more than l00 sepicmens collected were studied in the paper. SPM concentration comparison between the data of two cruises 1986 the results indicate that in the Changjiang Estuarine were l34.0～189.0mg/dm3 (in summer),and were 71.6～299.0mg/dm3 (in winter) ,and thation the seawater is 6.9～125.5mg/dm3 (in winter),and is 3.7～72.2mg/dm3 (in summer).The SPM maximum zone occurs notewority at the main entrance of Changjiang river,and coincides with 5～25 of salinity where it is a plume front.The dominat componentus of the suspended particulates are minerals,secondary biogenic particles. The control factor of temporal-spatial distribution of SPM in the Changjiang Estuary is also discussed.
出处
《海洋环境科学》
CAS
CSCD
北大核心
1996年第3期36-40,共5页
Marine Environmental Science
关键词
悬浮物质
分布
控制因素
长江口
海域
s: suspended substance
composition
distribution
control factor
