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盐地碱蓬浮床对海水养殖水体原位修复的效果
滕丽华1, 赵欣园1, 王趁义1, 郭炜超1, 李洋2, 汤唯唯1
1.浙江万里学院 生物与环境学院, 浙江 宁波 315100;2.宁波晟乾环境技术开发有限公司, 浙江 宁波 315100
摘要:
[目的]研究盐地碱蓬(Suaeda salsa)由陆地生境转移到浮床盐水生环境后的生长情况及其对海水养殖池塘水体原位修复的效果,为利用盐生植物原位修复海水养殖池塘提供方法。[方法]测定修复期间盐水浮床和陆地两种生境下盐地碱蓬的生长及生理生化指标,并监测海水养殖池塘水体水质。[结果]试验期内浮床生境中盐地碱蓬适应良好,生物量显著增加,其中浮床生境盐地碱蓬根系活力、叶片含氮量分别显著高于同期陆地生境中的盐地碱蓬。水质检测表明,修复后浮床区水体中总氮、总磷、氨氮和化学需氧量分别为3.34,0.20,0.47,0.35 mg/L,均明显低于对照区,去除效果良好。[结论]盐地碱蓬从陆地生境转移到浮床盐水生境后可以适应水生环境,并通过根系吸收部分去除水中的氮、磷等污染元素。盐地碱蓬原位修复海水养殖池塘水体具有较好的潜力。
关键词:  碱蓬浮床  生长特性  海水养殖用水  原位修复
DOI:10.13961/j.cnki.stbctb.2018.03.035
分类号:
基金项目:浙江省公益性技术应用研究计划“二级生物净化系统处理海水池塘养殖尾水关键技术研究”(2015C32035);宁波市科技惠民项目(2017C50010);浙江省“生物工程”一流学科开放基金(KF2018004);浙江万里学院生态养殖模式与尾水水质调控科技特派团队项目。
In-situ Remediation Effect of Suaeda Salsa Floating Bed on Aquaculture Water Body
TENG Lihua1, ZHAO Xinyuan1, WANG Chenyi1, GUO Weichao1, LI Yang2, TANG Weiwei1
1.College of Biology and Environment, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China;2.Ningbo Sheng Qian Environmental Tecmology Development Co., Ltd. Ningbo, Zhejiang 315100, China
Abstract:
[Objective] To study the growth of Suaeda salsa transferred from a terrestrial habitat to a floating-bed saline habitat and its effect on the in-situ water remediation of aquaculture ponds, in order to provide methods for aquaculture water body remediation by floating bed.[Methods] The growth, physiological and biochemical indexes of S. salsa under saltwater floating bed and land habitats during the restoration period were measured. Water quality of the aquaculture ponds was monitored as well.[Results] The S. salsa was well-adapted the floating bed habitat during the experiment period. Biomass was increased significantly, and the root activity and leaf nitrogen content of S. salsa in the floating bed habitat were higher than that in the land habitat. The total nitrogen, total phosphorus, ammonia and chemical oxygen demand was 3.34, 0.20, 0.47, and 0.35 mg/L, respectively, which was lower than the control treatment.[Conclusion] S. salsa can adapt to the aquatic environment after transferred from terrestrial habitat to floating-bed saline habitat, and it can remove nitrogen, phosphorus and other elements in the water through the root absorption. S. salsa has a good potential for in-situ remediation in aquaculture pond water.
Key words:  Suaeda floating bed  growth characteristics  maricultural water  in-situ restoration