东山湾海马齿生态浮床原位修复效果研究  

Study on the in-situ remediation effects of Sesuvium portulacastrum ecological floating beds in Dongshan Bay

作　　者：杨芳[1,2] 杨妙峰 郑盛华[1,2] 林永青 郑惠东[1,2] 温凭 李卫林[1,2] 罗冬莲 YANG Fang;YANG Miaofeng;ZHENG Shenghua;LIN Yongqing;ZHENG Huidong;WEN Ping;LI Weilin;LUO Donglian(Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province,Fisheries Research Institute of Fujian,Xiamen 361013,China;Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources,Xiamen 361102,China)

机构地区：[1]福建省水产研究所,福建省海洋生物增养殖与高值化利用重点实验室,福建厦门361013 [2]福建省海洋生物资源开发利用协同创新中心,福建厦门361102

出　　处：《渔业研究》2019年第3期225-233,共9页Journal of Fisheries Research

基　　金：国家重点研发计划(2018YFC1406306);福建省海洋与渔业结构调整项目(2019HYJG10);福建省属公益类科研所基本科研专项(2017R1003-5,2018R1003-4,2018R1003-7)

摘　　要：针对规模化网箱养殖的自身污染问题,在东山湾八尺门鱼类养殖海区开展海马齿(Sesuvium portulacastrum)生态浮床原位修复研究。经过一年的生长,八尺门修复区海马齿平均茎长1.28m,平均根须长0.52m,生物量达152.5×10^3g/m^2,通过生长吸收对C、N、P的积累量分别为5214.0、378.5、22.9g/m^2。经过两年的原位修复,浮床修复区海水的DO比对照区高11.9%;浮床对石油类、悬浮物和COD的去除率分别为42.3%、14.9%和10.0%,对TN的去除率为11.7%,对NH4-N、NO3-N和PO4-P的去除率分别为19.9%、16.4%和9.2%;由于海水的流动性和影响因素的复杂性,浮床对TOC、NO2-N和TP的去除效果不理想。综上,海马齿生态浮床能够在一定程度上改善修复区海水水质,减轻网箱养殖水体的营养负荷。In order to reduce the pollution caused by seawater cage farming,the in-situ remediation effects of Sesuvium portulacastrum ecological floating beds in Dongshan Bay were studied.After one year of growth,the average stem length of S.portulacastrum in Bachimen remediation demonstration area was 1.28 m,the average root length was 0.52 m,and the biomass was 152.5×10^3 g/m^2 .Besides,the C,N,P fixed in S.portulacastrum was 5 214.0 g/m^2 ,378.5 g/m^2 and 22.9 g/m^2 ,respectively.After two years of in-situ remediation,the DO value in remediation area was higher than those in the control area,with the rate of 11.9%.The removal rate of Oil,SS and COD by S.portulacastrum ecological floating beds was 42.3%,14.9% and 10.0%,respectively.And the removal rate of TN was 11.7%.The removal rate of NH 4 -N,NO 3 -N,and PO 4 -P was 19.9%,16.4% and 9.2%,respectively.Due to the complexity of seawater fluidity and influencing factors,the removal effects of floating bed on TOC,NO 2 -N and TP was not ideal.In conclusion, S.portulacastrum ecological floating beds could effectively reduce the content of N and P in aquaculture water,and had certain purification ability in the remediation area.

关 键 词：海马齿 生态浮床 原位生境修复 东山湾 

分 类 号：X835[环境科学与工程—环境工程]