| 长江口海区理化环境对初级生产力的影响 |
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| 引用本文： | 沈志良.长江口海区理化环境对初级生产力的影响[J].海洋湖沼通报,1993(1):47-51. |
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| 作者姓名： | 沈志良 |
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| 作者单位： | 中国科学院海洋研究所 |
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| 摘 要： | 本文主要根据1985年10月长江口水文、水化学和初级生产力的同步调查资料,探讨了海水透明度、温、盐度和营养盐与初级生产力的关系,表明透明度是近河口水域初级生产力的主要限制因素,对叶绿素α含量没有明显影响,营养盐浓度对叶绿素α含量的影响大于对初级生产力的影响,营养盐对初级生产力没有明显的限制作用;过高的氮磷比不利于浮游植物进行光合作用。
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| 关 键 词： | 长江口 理化环境 初级生产力 海区 |
THE EFFECTS OF THE PHYSIC-CHEMICAL ENVIRONMENT ON THE PRIMARY PRODUCTIVITY IN THE YANGTZE RIVER ESTUARY |
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| Shen Zhiliang.THE EFFECTS OF THE PHYSIC-CHEMICAL ENVIRONMENT ON THE PRIMARY PRODUCTIVITY IN THE YANGTZE RIVER ESTUARY[J].Transaction of Oceanology and Limnology,1993(1):47-51. |
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| Authors: | Shen Zhiliang |
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| Abstract: | This paper discusses the relationships of the transparency, temperature, salinity and nutrients to the primary productivity in the seawater of the Yangtze River estuary in October, 1985. It shows that the transparency is a main limiting factor of the primary productivity in the seas near the estuary, but it presents no evident effect on the chlorophyll-a. The effect of the concentrations of the nutrients on the chlorophyll-a is bigger than that on the primary productivity, and they show no evident limiting on the primary productivity. The high rate of nitrogen and phosphorus is unfavourable to the photosynthesis of the phytoplankton. |
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| Keywords: | Yangtze River estuary physic-chemical environment primary productivity |
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