渔业现代化

渔业现代化

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生态悬床技术对白洋淀水环境修复效果的研究

朱浩1,2，曹坤3,陈晓龙1， 叶少文4(1 中国水产科学研究院渔业机械仪器研究所，上海 200092;
2 农业农村部渔业装备与工程重点开放实验室, 上海 200092；
3中国水产科学研究院渔业资源与环境研究中心，北京100141；
4 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室，湖北 武汉430072)   

  1. (1 中国水产科学研究院渔业机械仪器研究所，上海 200092;
    2 农业农村部渔业装备与工程重点开放实验室, 上海 200092；
    3中国水产科学研究院渔业资源与环境研究中心，北京100141；
    4 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室，湖北 武汉430072)
  • 出版日期:2020-12-20 发布日期:2021-01-06
  • 通讯作者: 曹坤（1986—），男，硕士，助理研究员，研究方向：渔业资源保护、渔业遥感应用与数据分析研究。E-mail：caokun618@163.com
  • 作者简介:朱浩（1985—），男，硕士，助理研究员，研究方向：水产养殖生态工程。 E-mail: zhuhao0511@163.com
  • 基金资助:
    现代农业产业技术体系建设专项资金资助(CARS-45)；白洋淀水生生物资源环境调查及生态修复示范项目（2018LKY007）

Effect of ecological suspended bed measures on water environment restoration in Baiyangdian Lake#br#

ZHU Hao1, 2, CAO Kun3, CHEN Xiaolong1, YE Shaowen4(1 Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China;#br# 2 Key Laboratory of Fishery Equipment and Engineering, Ministry of Agriculture, Shanghai 200092, China;#br# 3 Fisheries Resources and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing 100141, China;#br# 4 State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei, China)   

  1. (1 Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China;
    2 Key Laboratory of Fishery Equipment and Engineering, Ministry of Agriculture, Shanghai 200092, China;
    3 Fisheries Resources and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing 100141, China;
    4 State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei, China)
  • Online:2020-12-20 Published:2021-01-06

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摘要： 为解决白洋淀深水区沉水植被恢复的问题，开发了一种由水生植物、绳索及支撑杆构建的生态悬床。生态悬床可根据水位变化调整在水体中的上下位置，2019年7月至2019年11月连续测定悬床周围水体中水质状况，研究了悬床种植沉水植物对湖泊深水区氮磷营养盐的净化效果。结果显示：狐尾藻在悬床上生长良好，并能有效地降低水体中的氮磷营养盐；试验开始一个月后，悬床周围水体总氮、总磷、亚硝酸盐氮去除率分别为40.54%、53.45%、99%；试验结束时，悬床周围水体总氮、亚硝酸盐氮和COD质量浓度分别比实验开始时下降了12.43%、33.93%、17.09%。研究表明：悬床种植沉水植物可有效解决沉水植物生长光照不足的问题，是北方藻型湖泊恢复沉水植被的有效措施之一。

关键词: 生态悬床, 白洋淀, 水体修复, 水生植物

Abstract: In order to solve the problem of submerged vegetation restoration in deep water area of Baiyangdian Lake, an ecological suspended bed constructed by aquatic plants, ropes and supporting rods was developed. The position of the ecological suspended bed can be adjusted according to the change of water level. Through monitoring of water quality around the suspended bed from July 2019 to November 2019, the purification effect of submerged plants on the suspended bed on nitrogen and phosphorus nutrients in deep water area of lake was studied. The results showed that Myriophyllum grows well on the suspended bed, and could effectively reduce the nitrogen and phosphorus nutrients in the water body. One month after the start of the experiment, the removal rates of total nitrogen, total phosphorus and nitrite nitrogen in the water around the suspended bed were 40.54%, 53.45% and 99%, respectively. At the end of the experiment, the total nitrogen, nitrite nitrogen and COD decreased by 12.43%, 33.93% and 17.09% respectively compared with those at the start of the experiment. The study shows that submerged plants on the suspended bed can effectively solve the problem of insufficient light for submerged plant growth, making it one of the effective measures to restore submerged vegetation in northern algal lakes.

Key words: ecological suspended bed, Baiyangdian Lake, water restoration, aquatic plant