首页 | 本学科首页   官方微博 | 高级检索  
     检索      

南麂列岛铜藻氮磷吸收特征研究
引用本文:南春容,王铁杆,张鹏,张立宁.南麂列岛铜藻氮磷吸收特征研究[J].上海海洋大学学报,2014,23(5):706-711.
作者姓名:南春容  王铁杆  张鹏  张立宁
作者单位:温州医科大学,浙江省海洋水产养殖研究所,浙江省海洋水产养殖研究所,浙江省海洋水产养殖研究所
基金项目:国家海洋公益性研究专项(201105008-4)
摘    要:实验室条件下测定了:(1)不同温度下,铜藻的磷吸收动力学;(2)氮磷比对铜藻氮磷吸收速率的影响;(3)不同化合态氮对铜藻氮磷吸收速率的影响;(4)成熟铜藻体内总氮总磷含量。结果显示:(1)20℃时,铜藻对磷的半饱和吸收常数最低,最大吸收速率最大;(2)氮浓度一定时,随着氮磷比值升高,铜藻对氮磷的吸收速率皆下降;磷浓度一定时,随着氮磷比值升高,铜藻对氮的吸收速率增加,对磷的吸收速率下降;(3)磷充足时,铜藻对硝氮的吸收速率随着氨氮硝氮比升高而下降,对氨氮和磷的吸收速率随着氨氮硝氮比升高先上升后下降;(4)干燥铜藻体内总氮总磷含量分别为5.70%和0.18%。

关 键 词:铜藻  磷吸收动力学  氮磷比  硝氮氨氮比  吸收速率
收稿时间:2014/3/24 0:00:00
修稿时间:2014/5/19 0:00:00

Absorption characteristics of N and P by a macroalga,Sargassum horneri, in Nanji Islands
NAN Chun-rong,WANG Tie-gan,ZHANG Peng and ZHANG Li-ning.Absorption characteristics of N and P by a macroalga,Sargassum horneri, in Nanji Islands[J].Journal of Shanghai Ocean University,2014,23(5):706-711.
Authors:NAN Chun-rong  WANG Tie-gan  ZHANG Peng and ZHANG Li-ning
Institution:Wenzhou Medical University,Wenzhou,Zhejiang Mariculture Research Institute,Wenzhou,Zhejiang Mariculture Research Institute,Wenzhou,Zhejiang Mariculture Research Institute,Wenzhou
Abstract:Three uptake experiments were performed under laboratory conditions: (1)Phosphate uptake kinetics of macroalga, Sargassum horneri, between 5 -25 ℃ ; (2)Effect of N: P ratio on the uptake of N and P by S. horneri ; (3) Effect of NH4 + -N/NO3 - -N ratio on the uptake of N and P by S. horneri. The results were : ( 1 ) The maximum absorption rate ( Vmax ) rises with temperature variation between 5 - 20 ℃, and reaches the max at 20℃ ; The half saturated absorption constant (Km) decreases with temperature variation between 5 -20 ℃, and reaches the min at 20 ℃ ; (2)when the N concentration was constant, the uptake rate of N and P decreases with the N: P ratio variation between 16:1 to 256:1 ; While the P concentration was constant, the uptake rate of N rises, and P decreases with the variation of N: P ratio. (3) when phosphate is adequate, the uptake rate of NO3 --N has a negative relation with NH4 + -N/NO3 --N, while NH4 + -N and P have a positive relation with NH4 + -N/NO3 --N variation between 1:1 -8: 1, and a negative relation with that above 16: 1. (4)The TN and TP in S. horneri are 5.70% and 0.18% , respectively.
Keywords:Sargassum horneri  phosphate uptake kinetics  N/P  NH4 -N/NO3-N  uptake rate
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《上海海洋大学学报》浏览原始摘要信息
点击此处可从《上海海洋大学学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号