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引用本文:蔡后建,陈宇伟,蔡启铭,高锡芸.太湖梅梁湾口浮游植物初级生产力及其相关因素关系的研究.湖泊科学,1994,6(4):340-347. DOI:10.18307/1994.0407
Cai houjian,Chen Yuwei,Cai Qiming,Gao Xiyun.Relations between primary production of phytoplankton and relative factors at mouth of Meiliang Bay in Taihu Lake. J. Lake Sci.1994,6(4):340-347. DOI:10.18307/1994.0407
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太湖梅梁湾口浮游植物初级生产力及其相关因素关系的研究
蔡后建, 陈宇伟, 蔡启铭, 高锡芸
中国科学院南京地理与湖泊研究所, 南京210008
摘要:
研究了太湖梅梁口1991年8月-1993年2月浮游植物初级生产力季节变化和垂直分布以及初级生产力与光、温、叶绿素、透明度之间的关系。结果表明,温度是影响初级生产力的主要因子。全年初级生产力主要集中在夏季(6-8月份)。水柱日毛生产量的更大值在7月份,达4.63g O2/m2·d;最小值在12月,仅为0.12g O2/m2·d。初级生产力的最适温度为25℃。根据室内模拟实验,它与温度之间拟合方程为:P=0.22θ(25-r)。初级生产力还受可利用光的影响,最高初级生产力一般出现在透明度一半的水层。初级生产力与光辐射能之间的关系(T=18℃)为:P=0.162·(I/1.33)·exp(1-(I/1.33))+0.05。
关键词:  浮游植物初级生产力(量)  温度  光辐射能  叶绿素a  太湖  相关分析
DOI:10.18307/1994.0407
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Relations between primary production of phytoplankton and relative factors at mouth of Meiliang Bay in Taihu Lake
Cai houjian, Chen Yuwei, Cai Qiming, Gao Xiyun
Institute of Geography and Limaology, Chinese Academy of Scienoes, Nanjing 210008
Abstract:
The vertical distribution of primary production of phytoplank ton in various seasons and its relations with li,ht intensity, temperature, chlorophyl a.transparency at the mouth of Meiliang Bay in Taihu Lake from Aug.1991 to Feb.1993 were studied.The results show that temperature is the main factor to affect the primary productivity, and the annual primary productivity was mainly distributed in summer, June to August.The maximum value of the gross primary productivity was 4.63 g 02/m2·d in July, while the minimum one was only 0.12 g 02/m2·d in December.The optimum temperature for the primary productivity was 25mC-According to the simulation experiment, the relation between primary productivity and temperature was fitted to the function;P=0.22·θ(25-r)).The primary productivity was also affected by the available light.The maximum primary productivity occured at the half depth of the transparency generally.The relation between the primary productivity and radiation is P=0.162·(I/1.33)·exp(1-(I/1.33))+0.05.
Key words:  Phytoplankton  primary productivity  temperature  chlorophyl radiation  Taihu Lake
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