English  |  正體中文  |  简体中文  |  Items with full text/Total items : 27287/39131
Visitors : 2446550      Online Users : 34
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41524

Title: Redfield ratios and regeneration rates of particulate matter in the Sea of Japan as a model of closed system
Authors: Alexander S. Bychkov
Chen-Tung Arthur Chen
Gwo-Ching Gong
Shu-Lun Wang
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Date: 1996-07
Issue Date: 2017-03-01T01:10:24Z
Publisher: Geophysical Research Letters
Abstract: Abstract: Since the Sea of Japan Proper Water is formed inside the closed basin, it is straightforward to use the mass-balance method to estimate the Redfield ratios and the dissolution and decomposition rates of particulate matter. The resulting Ca/Si/C/O/N/P ratios for waters deeper than 2000 m are 23±9/57±2/98±6/125±5/13±0.9/1±0.04, in good agreement with the traditional C/O/N/P values of 106/138/16/1. The calcium and alkalinity data indicate a CaCO3 dissolution rate of 0.22±0.13 and 0.16±0.05 µmol kg−1 yr−1 respectively. The organic carbon (OC) decomposition rate is 0.89±0.05 µmol kg−1 yr−1 while the oxygen consumption rate is 1.13±0.04 µmol kg−1 yr−1. The nitrate, phosphate and silicate regeneration rates are, respectively, 0.12±0.008, 0.0091±0.0004 and 0.52±0.02 µmol kg−1 yr−1. These rates are much higher than found elsewhere in the open oceans. The Ca/Si/C/O/N/P ratios for waters immediately beneath the thermocline (300 — 600 m) are 0±8/22±2/88±9/121±7/14.7±1.3/1±0.04. The C/P ratio is lower than the traditional Redfield ratio but the N/P ratio is in very good agreement. The regeneration rates are as follows: IC= 0±0.4, OC = 3.7±0.4, O = 5.1±0.3, N = 0.62±0.06, P = 0.042±0.002 and Si = 0.93±0.05 µmol kg−1 yr−1 respectively. These values indicate that the decomposition rate of organic matter is about five times higher in the upper water than in the deeper water.
Relation: 23(14)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41524
Appears in Collections:[海洋環境與生態研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML72View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback