| 底充式增氧对改善池塘水质效果的初步研究 |
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| 引用本文： | 金中文,郑忠明,吴松杰,尤尔茂,胡安宽.底充式增氧对改善池塘水质效果的初步研究[J].南方水产,2010,6(6):20-25. |
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| 作者姓名： | 金中文 郑忠明 吴松杰 尤尔茂 胡安宽 |
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| 作者单位： | [1]宁波市海洋与渔业研究院,浙江宁波315010 [2]宁波大学应用海洋生物技术教育部重点实验室,浙江宁波315211 [3]宁海县水产技术推广站,浙江宁海315600 |
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| 基金项目： | 宁波市科技局海洋渔业资源可持续开发与综合利用科技专项，浙江省科技厅面上农业项目 |
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| 摘 要： | 在凡纳滨对虾（Litopenaeus vannamei）和三疣梭子蟹（Portunus trituberculatus）养殖池塘中进行了底充式增氧对池塘水质改善效果试验。结果表明,增氧2～3h能减小或消除池塘温度和溶解氧（DO）跃层,显著提高池塘底层水体的ρ（DO）（P〈0.05）。在上午8：00～11：00这段时间开增氧机的效果最佳;试验池塘的氨氮（NH4＋-N）和亚硝酸盐（NO2--N）的质量浓度为对照池塘的72.5%～74.1%和2.6%～2.7%,能促进池塘氧化反应,降低有害物质的含量,改善池塘环境条件。
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| 关 键 词： | 底充式增氧 溶解氧 水温 跃层 水质改善 |
Preliminary study on improvement of pond water quality by bottom aeration |
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| JIN Zhongwen,ZHENG Zhongming,WU Songjie,YOU Ermao,HU Ankuan.Preliminary study on improvement of pond water quality by bottom aeration[J].South China Fisheries Science,2010,6(6):20-25. |
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| Authors: | JIN Zhongwen ZHENG Zhongming WU Songjie YOU Ermao HU Ankuan |
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| Institution: | 1. Ningbo Oceanography and Fishery Institute,Ningbo 315010,China;2. Key Lab. of Applied Marine Biotechnology,Ministry of Education,Ningbo University,Ningbo 315211,China;3. Fisheries Techniques Promotion Station of Ninghai County,Ninghai 315600,China) |
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| Abstract: | We conducted an experiment on Litopenaeus vannamei and Portunus trituberculatus aquaculture pond during Aug.～ Oct.2008 to study the improvement effects of bottom aeration on the water quality.Results show that 2～3 h bottom aeration can decrease or eliminate stratification of dissolved oxygen（DO）and increase DO content significantly（P0.05）.The best time for operating oxygen-enriching machine is 8：00～11：00 am.Concentrations of ammonia nitrogen and nitrite in the experimental ponds are 72.5%～74.1% and 2.6%～2.7% of that in the control,respectively.Thus,bottom aeration can facilitate oxidization in the pond,decrease content of harmful substance and improve pond water quality. |
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| Keywords: | bottom aeration dissolved oxygen water temperature stratification improvement of water quality |
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