琼枝麒麟菜对富营养化海水氮磷的去除及对水体中Chl a含量的影响  

Purification of Eucheuma gelatinae on nitrogen and phosphorus and effect on the level of chlorophyll a in eutrophic seawater

作　　者：李春强[1] 于晓玲[1] 王树昌[1] 彭明[1] 

机构地区：[1]中国热带农业科学院热带生物技术研究所农业部热带作物生物学与遗传资源利用重点实验室,海南海口571101

出　　处：《海洋环境科学》2015年第2期190-193,239,共5页Marine Environmental Science

基　　金：海南省重点科技计划(ZDXM20110015);海南省重大科技专项(ZDZX2013023-1-10);科技部科研院所社会公益研究专项(2004DIB3J074)

摘　　要：研究了琼枝麒麟菜对富营养化海水氮磷的吸收及其对Chl a的影响。结果表明,养殖琼枝麒麟菜能有效去除富营养化海水中的可溶性无机氮(DIN)和PO4-P。对DIN的清除,72 h就达到很好的效果,直至几乎耗尽;琼枝麒麟菜优先利用NH4-N,而后是NO3-N和NO2-N。琼枝麒麟菜对水体中PO4-P的清除效果24 h就十分明显,养殖密度在6 kg/m3以上时PO4-P浓度不会出现回升。养殖琼枝麒麟菜能控制海水中Chl a含量,144 h水体中的Chl a含量达到最低值,养殖密度在4 kg/m3以上时Chl a水平不会出现回升。因此,琼枝麒麟菜是热带海域最理想的净化水质、控制赤潮的经济大型海藻之一。The ability of Eucheuma gelatinae purifies nitrogen and phosphorus and the control of microalgae biomass in eutrophic seawater was studied. The results showed that DIN and PO4-P can be eliminated efficiently by E. gelatinae in eutrophic seawater. The elimination effect of DIN and PO4-P was obvious after 72 h and 24 h respectively. Compare with the uptake of nitrate nitrogen and nitrite nitrogen,E. gelatinae preferentially absorbs ammonia nitrogen. The content of chlorophyll a in seawater can be control by E. gelatinae. The level of chlorophyll a achieved to the lowest value after 144 h and didn＇t rise back when the density of E. gelatinae was up 4 kg / m^3. Therefore,E. gelatinae is one of the most ideal macroalgae in tropical sea to seawater purification and red tide control.

关 键 词：大型海藻 琼枝麒麟菜 赤潮 富营养化 

分 类 号：X55[环境科学与工程—环境工程]