儋州洋浦湾水质环境分析及评价

Analysis of Water Quality in the Yangpu Bay

本文根据儋州洋浦湾2014年2015年2016年三年水质监测结果,采用水质单因子质量指数分析方法、综合评价法、富营养化水平评价法对海南儋州新英湾水质污染状况进行分析评价,并采用GIS软件对该海域污染因子进行绘图分析。结果表明:洋浦湾海域在监测时段内整体水质优良,无机氮、磷酸盐、油类、溶解氧、化学需氧量测值均符合国家二类海水水质标准;洋浦湾海域监测时段内富营养化程度较低;该海域各项海水监测指标呈现由湾内向湾外递减的趋势。该研究可为洋浦湾生态环境保护和研究提供参考。

Base on the monitoring results of water quality in the past three years （2014~2016）, this paper analyses on the seawater pollution state in Danzhou Yangpu Bay of Hainan, using single-factor quality index analysis method, comprehensive evaluation method, eutrophication level evaluation method, and draws an analysis of pollution factors in the sea area using GIS to do drawing analysis. The result shows： this place is excellent in overall water quality during the monitoring period, inorganic nitrogen, phosphate, oil, dissolved oxygen, chemical oxygen demand are in line with the national second class of sea water quality standards. In addition to a small pan of the station dissolved oxygen in line with the national second class of seawater quality standards. The degree of eutrophication was low in the monitoring period of Yangpu Bay, and the seawater monitoring index in the sea area showed a decreasing trend from the Bay to the Bay. This study can provide reference for Yangpu Bay ecological environment protection and research.