| 3种植物对养殖水体中氮磷净化作用研究 |
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| 引用本文： | 于振海,陈有光,卢 红,郑玉珍,刘红彩,孙 华.3种植物对养殖水体中氮磷净化作用研究[J].中国农学通报,2020,36(5):131-137. |
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| 作者姓名： | 于振海 陈有光 卢 红 郑玉珍 刘红彩 孙 华 |
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| 作者单位： | 1. 山东省淡水渔业研究院,山东省淡水水产遗传育种重点实验室,济南 250013;2. 枣庄市市中区水产站,山东枣庄 277100 |
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| 基金项目： | 山东省科技发展计划“淡水池塘养殖水体资源化利用技术的研究”(2015GNC110014)。 |
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| 摘 要： | 为研究养殖水体中适于净化氮磷的植物,选择凤眼莲(Eichhornia crassipes)、紫背浮萍(Spirodela polyrrhiza)、空心菜(Ipomoea aquatica)等3种植物为试验对象。通过对每种植物设定生物量梯度,每5天取1次水样,测定分析养殖水体的总氮(TN)、硝酸盐(NO3 -)、亚硝酸盐(NO2 -)、氨氮(NH4 +-N)和总磷(TP)等氮磷指标,进行不同植物、生物量梯度以及试验时间对养殖水体氮磷净化效果的研究。结果显示,3种植物均正常生长,对养殖水体氮磷均有较好净化能力。3种植物对氮净化效果较好的时间在10~15天,对磷的净化效果较好的时间则在15~20天。凤眼莲生物量2000~2500 g/m 3,浮萍生物量150~200 g/m 3,空心菜生物量800~1600 g/m 3对氮磷的净化效果最佳。3种植物均可用于养殖水体的氮磷净化,3种植物对养殖水体中TN、TP、NO3 -去除效果空心菜>浮萍>凤眼莲,对NO2 -、NH4 +-N去除效果凤眼莲>空心菜>浮萍。凤眼莲更适于养殖水体的氮磷净化。
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| 关 键 词： | 凤眼莲 浮萍 空心菜 氮 磷 水体净化 |
| 收稿时间： | 2018/9/30 0:00:00 |
| 修稿时间： | 2020/1/16 0:00:00 |
N and P Purification in Aquatic Water with Three Plants |
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| Yu Zhenhai,Chen Youguang,Lu Hong,Zheng Yuzhen,Liu Hongcai,Sun Hua.N and P Purification in Aquatic Water with Three Plants[J].Chinese Agricultural Science Bulletin,2020,36(5):131-137. |
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| Authors: | Yu Zhenhai Chen Youguang Lu Hong Zheng Yuzhen Liu Hongcai Sun Hua |
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| Institution: | 1. Shandong Freshwater Fisheries Research Institute, Shandong Provincial Key Laboratory of Freshwater Genetics and Breeding, Jinan 250013;2. Fishery Station in Shizhong District of Zaozhuang City, Zaozhuang Shandong 277100 |
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| Abstract: | To study the suitable plants for N and P purification in aquatic water, Eichhornia crassipes, Spirodela polyrrhiza and Ipomoea aquatica were selected as test subjects. The biomass gradients were set up. The water samples were taken once every 5 days. The indexes of N and P such as TN, NO3 -, NO2 -, NH4 +-N and TP in aquatic water were determined and analyzed. The effects of different plants, biomass gradients and experimental time on N and P purification were studied. The results showed that the three plants grew normally and had good purification capacity for N and P in aquatic water. The three plants had better effect on N purification in 10-15 days, and on P purification in 15-20 days. The biomass of Eichhornia crassipes, Spirodela polyrrhiza and Ipomoea aquatica with the best purification effect on N and P was 2000-2500 g/m 3, 150-200 g/m 3 and 800-1600g/m 3, respectively. All the three kinds of plants can be used to purify N and P of aquatic water, the order of the purification effect on TN, TP, NO3 - was Ipomoea aquatica > Spirodela polyrrhiza > Eichhornia crassipes, while on NO2 -、NH4 +-N was Eichhornia crassipes> Ipomoea aquatica > Spirodela polyrrhiza. Eichhornia crassipes is more suitable for the purification of N and P in aquatic water. |
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| Keywords: | Eichhornia crassipes Spirodela polyrrhiza Ipomoea aquatica N P purification |
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