庄河临时海洋倾倒区海洋生态环境评价研究

Marine ecological environment evaluation and analysis of Zhuanghe temporary ocean dumping site

为了解庄河临时海洋倾倒区的海洋生态环境现状以及疏浚物倾倒对该海域海洋生态环境的影响情况,本文结合2011-2013年间的监测资料,通过单因子标准指数法以及水质综合污染指数法对倾倒区海水水质进行了评价;采用单因子标准指数法和地质累积指数法,结合2012年和2013年的监测资料对沉积物进行了分析;通过香农-韦佛指数方程,综合2012年和2013年的监测资料,对监测海域的浮游植物、浮游动物和大型底栖生物进行了评价。同时选取倾倒活动影响范围外一点与倾倒区监测同步进行。采用不同方法得到的评价方法均表明,监测海域海水水质基本符合《海水水质标准》中的二类标准;沉积物符合《沉积物质量标准》中的一类标准;海洋生物未受到倾倒物的明显污染。这说明,目前庄河倾倒区海洋生态环境质量良好,疏浚物倾倒未对监控海域生态环境造成明显影响。

In order to find out the marine ecological environment of Zhuanghe temporary ocean dumping site and the influence to marine ecological environment by dumping,this paper combines the monitoring data from 2011 to 2013,with the methods of single factor index and comprehensive pollution index of water quality to evaluate the seawater quality; combines the monitoring data of 2012 and 2013,with the methods of single factor index and geological accumulation index to evaluate the sediment quality; analysises the diversity index by shannon-weaver exponential equation to evaluate the phytoplankton,zooplankton and large benthic quality of 2012 and 2013. At the same time we select a point which is outside the affective waters to compare with the monitoring datas. All the evaluation methods show that the water quality of the investigated area reached the second-class water quality from The Chinese National Standard of Seawater Quality; the sediment quality reached the first-class sediment quality from The Chinese National Standard of Sediment Quality; marine biological has not been spilled by the dumping obviously. These indicate that the marine ecological environment quality of Zhuang he is good. Dumping haven＇t impacted on the monitoring marine ecological environment of the monitoring area obviously.