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| 长江口理化因子影响初级生产力的探索Ⅱ.磷不是长江口浮游植物生长的限制因子 | |
| 引用本文： | 杨东方,王凡,高振会,陈永利,谢利.长江口理化因子影响初级生产力的探索Ⅱ.磷不是长江口浮游植物生长的限制因子[J].海洋科学进展,2006,24(1):97-107. |
| 作者姓名： | 杨东方 王凡 高振会 陈永利 谢利 |
| 作者单位： | 1. 上海水产大学,生命学院,上海,200090;中国科学院,青岛海洋研究所,山东,青岛,266003;国家海洋局,北海监测中心,山东,青岛,266033 2. 中国科学院,青岛海洋研究所,山东,青岛,266003 3. 国家海洋局,北海监测中心,山东,青岛,266033 |
| 基金项目： | 中国科学院知识创新工程项目 , 国家海洋局资助项目 , 上海市教委资助项目 |
| 摘 要： | 1985年8月至1986年8月在长江口及其附近海域的50个大面观测站进行了磷酸盐和初级生产力逐月调查。通过分析磷酸盐的水平分布特征,发现长江口海域的磷酸盐浓度没有明显的季节变化,几乎不受长江流量变化的影响,因此认为,长江输送磷酸盐浓度不能由丰水期与枯水期决定;磷酸盐浓度与初级生产力的断面分布和时间变化的分析表明,磷酸盐浓度并不一定离岸越远越低,也没有周期性的季节变化;初级生产力的值几乎不受磷酸盐浓度变化的影响。根据营养盐限制的判断方法和法则,在长江口及其附近海域,磷并不是浮游植物生长的限制因子,仅靠氮磷比值来得到磷限制或氮限制的结论是不完善的。 |
| 关 键 词： | 磷酸盐 浮游植物 限制因子 长江口 |
| 文章编号： | 1671-6647（2006）01-0097-11 |
| 收稿时间： | 2004-03-22 |
| 修稿时间： | 2004-03-22 |
An Approach to the Effect of Physicochemical Factors on Primary Production in the Changjiang Estuary Ⅱ. Phosphorus Is Not a Limiting Factor for Phytoplankton Growth in the Changjiang Estuary |
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| YANG Dong-fang,WANG Fan,GAO Zhen-hui,CHEN Yong-li,XIE Li.An Approach to the Effect of Physicochemical Factors on Primary Production in the Changjiang Estuary Ⅱ. Phosphorus Is Not a Limiting Factor for Phytoplankton Growth in the Changjiang Estuary[J].Advances in Marine Science,2006,24(1):97-107. | |
| Authors: | YANG Dong-fang WANG Fan GAO Zhen-hui CHEN Yong-li XIE Li |
| Institution: | 1. College of Life Science, Shanghai Fisheries University, Shanghai 200090, China; 2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266003, China; 3. North China Sea Monitoring Center, SOA, Qingdao 266033, China |
| Abstract: | In this paper,the monthly phosphate and primary production data observed in the Changjiang estuary water area during August 1985 to August 1986 are used to analyze the horizontal phosphate distribution characteristics in the area,and it is shown from the analysis results that there are no significant seasonal variations of phosphate concentration in the Changjiang esuary water area,and the phosphate concentrations in the area are hardly affected by the variations of the Changjiang River discharge.It is shown from the analysis results of sectional distributions and temporal variations of phosphate concentration and primary production that the phosphate concentration not necessarily decreases with increasing offshore distance,and the primary production values are hardly affected by the variations of phosphate concentration in the water area.Based on the judging methods and rules of nutrient limitation,it is concluded that phosphorus is not a limiting factor for the phytoplankton growth in the Changjiang estuary water area,and the conclusions of phosphorus limitation or nitrogen limitation drawn only by the ratio of nitrogen to phosphorus are imperfect. |
| Keywords: | phosphate phytoplankton limiting factor Changjiang estuary |
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