| 摘要: |
| 海洋中“有机碎屑雨”的存在,早已引起国内外学者的重视。生物学家认为它为深海生物提供了食物来源(Harding,1974);化学家则认为它是海洋中物质转移的主要途径(Menzel,1974)。但是长期以来,由于实验技术未能解决,无法进行现场研究,因而这些论断均未得到证实。自70年代以来,沉积物捕捉器的使用(詹滨秋等,1991)开创了这个研究领域的新局面。现在不仅能够研究悬浮体的基本特性,而且可以了解它们在沉降过程中的动态变化。沉积物捕捉器的使用,在我国开始于80年代,主要用于浅海和港湾，在水深80m以上的陆架海域的使用尚未见报道。本文为运用捕捉器在东海水深大于80m水域采获沉降悬浮物质,对其特征进行研究。此次调査研究的地点选择在长江冲淡水、黄海沿岸流、台湾暖流和黄海暖流交汇处,该海域10-50m深处一年四季存在一个半永久性的气旋型冷涡旋,并且存在上升流,因而该海域的悬浮物质具有独特性,对其进行的研究也有助于了解其他海域的同类问题。 |
| 关键词: 东海、沉降悬浮物质 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第2145号 |
|
| STUDY ON THE CHARACTERISTICS OF THE SINKING MATTER IN THE EAST CHINA SEA |
|
Zhan Binqiu, Wu Yulin, Li Pengcheng, Song Jinming
|
|
Institute of Oceanology, Academia Sinica
|
| Abstract: |
| Sinking matter is a carrier of chemical elements in the sea for transfering. The paper is the result of the study on the sinking matter, which was collected with the sediment traps in the 15m and 68m depth water layers in the East China Sea at32°00′N,126°00′E, in May and July, 1990. The grade distribution of sinking matter and plankton in the whole water column,biological species and number, and contents of chemical elements, were analysed and examined.The results show that the grade distribution and biological species in the sinking matter were similar to that of plankton. The paper describes the spatial and temporal characters. of meral element content in spring and summer, the relationships among the particulate metals and the existence forms of the particulate metals in the sinking matter. |
| Key words: Sinking matter,East China Sea |
