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赵文, 董双林, 李德尚, 张兆琪, 申屠青春. 盐碱池塘浮游植物初级生产力的研究[J]. 水生生物学报, 2003, 27(1): 47-54.
引用本文: 赵文, 董双林, 李德尚, 张兆琪, 申屠青春. 盐碱池塘浮游植物初级生产力的研究[J]. 水生生物学报, 2003, 27(1): 47-54.
ZHAO Wen, DONG Shuang-lin, LI De-shang, ZHANG Zhao-qi, SHENTU Qing-chun. THE PRIMARY PRODUCTIVITY OF PHYTOPLANKTON IN SALINE-ALKALINE PONDS[J]. ACTA HYDROBIOLOGICA SINICA, 2003, 27(1): 47-54.
Citation: ZHAO Wen, DONG Shuang-lin, LI De-shang, ZHANG Zhao-qi, SHENTU Qing-chun. THE PRIMARY PRODUCTIVITY OF PHYTOPLANKTON IN SALINE-ALKALINE PONDS[J]. ACTA HYDROBIOLOGICA SINICA, 2003, 27(1): 47-54.

盐碱池塘浮游植物初级生产力的研究

THE PRIMARY PRODUCTIVITY OF PHYTOPLANKTON IN SALINE-ALKALINE PONDS

  • 摘要: 根据黑白瓶测氧法测定,山东省高青县赵店渔场盐碱池塘鱼类生长期内(4-9月)浮游植物初级生产力为9.42±4.21gO2(m2·d),日P/B系数平均0.24±0.1,浮游植物对太阳有效辐射的利用率平均1.53%.无鱼对照池浮游植物初级生产力显著低于养鱼池.回归分析表明,浮游植物现存量、透明度、水温、盐度是决定盐碱池塘浮游植物初级生产力的主要生态因子.营养盐中磷比氮的限制作用大.文中探讨了养鱼池初级生产力在能量转化中的生态学效率.

     

    Abstract: The primary productivity of phytoplankton in saline-alkaline ponds in Zhaodian Fish Farm, Gaoqing county, Shandong Province, has been estimated by means of dark and light bottles method, during the season of fish growth during from April to September in 1997. The results showed that the primary productivity was 9 42? 21 gO2/(m2穌),daily P/B ratio was 0.24?.18, the available utilization rate of light energy was 1.53%, range from 0.20 to 3.15%. The primary productivity in control ponds without fish was significant fewer than that of fish-culture ponds. The primary production of phytoplankton occur two peak values, one occurs in spring, the other occurs in the late summer, the highest productive layer is the surface above 25cm. The analyses of correlation were suggested that phytoplankton biomass, transparency depth, water temperature, salinity are important ecological factors influenced the primary productivity of phytoplankton in saline-alkaline ponds in Gaoqing. As far as experimental ponds are concerned, limit effects of phosphorus to productivity was more important than that of nitrogen. The conversion efficiency of solar radiation to gross primary productivity ranged from 0.88% to 1.23%. The net primary productivity to yield of silver carp, bighead and tilapia varied from 6.6%-14.1%. The ecological conversion efficiency of solar radiation to fish yield was 0.028%-0.059%.

     

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