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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (29): 23-27.doi: 10.11924/j.issn.1000-6850.casb15040209

所属专题： 水产渔业

• 水产 渔业 • 上一篇    下一篇

罗非鱼池塘养殖周期沉积物理化指标的变化规律研究

裘丽萍,李志波,宋超,张聪,郑尧,孙博,陈家长   

  1. 中国水产科学研究院淡水渔业研究中心,南京农业大学无锡渔业学院,中国水产科学研究院淡水渔业研究中心,南京农业大学无锡渔业学院,中国水产科学研究院淡水渔业研究中心,南京农业大学无锡渔业学院,中国水产科学研究院淡水渔业研究中心
  • 收稿日期:2015-04-29 修回日期:2015-07-16 接受日期:2015-07-24 出版日期:2015-10-28 发布日期:2015-10-28
  • 通讯作者: 陈家长
  • 基金资助:
    中央级公益性科研院所基本科研业务费“太湖流域养殖池塘底质营养盐的沉积规律研究”(2015JBFM28)；国家农业产业技术体系项目“罗非鱼产业技术体系”(CARS-49)。

Changing Rule of Physical and Chemical Indicators of Sediment in Tilapia Aquaculture Ponds

  • Received:2015-04-29 Revised:2015-07-16 Accepted:2015-07-24 Online:2015-10-28 Published:2015-10-28

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摘要： 为给开展养殖池塘营养环境的平衡机制研究提供基础资料，定期采集罗非鱼池塘养殖过程中沉积物样品并检测各类营养物质含量，分析罗非鱼养殖池塘沉积物理化指标的周期变化规律。研究结果表明，沉积物干重、TP、TN及TOC含量大体都呈先升后降趋势，其中7—9 月为各营养物质的主要产生时段，其百分比例都接近总量的80%。NH4+-N的含量随时间逐渐升高，在8 月上旬达到峰值，之后基本维持在峰值水平。各塘沉积物的NO2--N含量在养殖前期基本相等，中期较前期明显降低且各塘出现较大差异性，后期升高。

关键词: 机插水稻, 机插水稻, 缺丛, 自然补偿能力

Abstract: To provide basic information for studying balancing mechanism of nutrition environment in aquaculture ponds, sediment samples were collected periodically during the breeding process of tilapia in ponds. Then various types of nutrient content of the samples were detected and the changing rule was summarized. The results showed that dry weight of the sediment and content of TP, TN and TOC generally presented a trend of first increasing and then decreasing. The main production period of each nutrient was from July to September and the production percentage was close to 80% of the total production. The content of NH4 -N increased gradually and reached a peak in early August, then maintained at the peak level. NO2--N content of the sediment in each pond was basically the same in the earlier aquaculture stage and decreased in middle stage with a big difference, then rose again in the later stage.

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