| 水产养殖活动中N2O的排放研究进展 |
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| 引用本文： | 罗国芝,邵李娜.水产养殖活动中N2O的排放研究进展[J].中国水产科学,2019,26(3):604-619. |
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| 作者姓名： | 罗国芝 邵李娜 |
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| 作者单位： | 1. 上海海洋大学水产科学国家级实验教学示范中心, 上海 201306;2. 上海水产养殖工程技术研究中心, 上海 201306;3. 水产动物遗传育种中心上海市协同创新中心, 上海 201306 |
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| 基金项目： | 上海市科学技术委员会资助项目（16DZ2281200）. |
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| 摘 要： | 本文分析了养殖水体氮转化过程中可能产生N_2O的环节,总结了关于水产养殖活动中N_2O排放量的相关研究进展。结果表明,养殖过程中的N_2O排放系数总体上低于废水处理过程中的N_2O排放系数;不同的养殖模式氮的利用效率及未被利用的氮的去向有较大差别,其中循环水养殖模式的氮处理过程最接近于废水处理厂中的处理途径,但循环水养殖产量占全球水产养殖产量的比例较低,且现有水产养殖总产量中约有一半的渔获物不需要投饵,因此,基于废水处理厂的N_2O排放系数和总养殖产量的N_2O排放量的估算会明显高于实际排放量。目前尚缺乏关于水产养殖N_2O产生的基础性研究,本研究未进行相关估算。应尽快开展水产养殖活动中产生N_2O的系统性研究,为客观评估养殖活动N_2O的排放提供理论支撑。
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| 关 键 词： | 水产养殖 氧化二氮 氮排放 氮转化 养殖模式 |
| 修稿时间： | 2019/5/16 0:00:00 |
Analysis of current research status and prospects of N2O emission from aquaculture production |
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| LUO Guozhi,SHAO Lina.Analysis of current research status and prospects of N2O emission from aquaculture production[J].Journal of Fishery Sciences of China,2019,26(3):604-619. |
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| Authors: | LUO Guozhi SHAO Lina |
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| Institution: | 1. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;2. Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China;3. Shanghai Synergetic Innovation Center for Aquatic Animal Genetics and Breeding Center, Shanghai 201306, China |
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| Abstract: | N2O emissions from aquaculture activities are attracting increasing attention. This paper compares the results of experimental studies on N2O emissions from aquaculture and estimation studies based on material balance, analyzes the state of nitrogen emission from different aquaculture modes, and constructs strategies to reduce N2O emissions. The results showed that the N2O emission coefficients measured in actual culture processes were lower than those in wastewater treatment processes. The efficiency of nitrogen utilization and the pathways of the unused nitrogen from different farming modes were quite different. In addition, the nitrogen treatment approach of the recirculation aquaculture system was the closest to that of the wastewater treatment plant, but the recirculation aquaculture production accounted for a low proportion of the global aquaculture production. Additionally, being fed is not required during the production of approximately half of the aquaculture yield. Therefore, the results based on the N2O emission coefficient of the wastewater treatment plant and the total N2O emission of aquaculture production will be significantly larger. Currently, there is still a lack of basic research on the production of N2O in aquaculture. Therefore, this paper does not establish relevant estimates. Future studies should conduct systematic research on the production of N2O in aquaculture activities to provide theoretical support for the objective assessment of N2O emissions from aquaculture activities. |
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| Keywords: | aquaculture nitrous oxide nitrogen emission nitrogen transformation aquaculture model |
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