高集海堤对厦门东西海域环境影响综合评价

The overall evaluation of environment effects of Gaoji Seawall around east and west sea area of Xiamen

本文运用2008年7月大小潮期间,厦门东、西海域海洋环境监测资料对该海区进行现状分析,并运用BP人工神经网络方法对该海域的海洋环境进行综合评价,结果表明:厦门西海域北部海域、同安湾、厦门西海域南部海域海水水质总体良好,除无机氮、磷酸盐(个别站位)超标外,其余监测指标均符合相应海水水质标准。综合评价分析表明:大潮期间厦门高集海堤两侧海域水质综合环境差异性明显,西海域的水质情况较为稳定,同安湾大小潮间差异较大;海堤打开后,势必会打破已趋于稳定的西海域生境。建议在海堤开口初期加强同安湾陆源污染物排放的监管与敏感生物的保护。

The paper analyzes the status quo of waters near the Gaoji Seawall based on the ocean environment monitor materials of Xiamen west and east sea area during a neap - spring tidal cycle in July, 2008 and conducts comprehensive evaluation and analysis on the ocean environment by the way of BP artificial neurology network. The result shows that the overall condition of sea water quality around east - west sea area, Tongan Bay, south -west sea area are in good condition, and the monitor indexes meet the corresponding standards, except that inorganic nitrogen and phosphate （exceptions） are over- proof. Comprehensive evaluation shows that the integrated environmental is obviously different during spring tide in both sides of the seawall, and the quality is relatively stable in the west sea of Xiamen, but it is quite different during neap tide in Tong＇an Bay. If the bank is removed, the environmental tendency towards stable in west sea area is bound to be destroyed. It is suggested that we should strengthen measures on the monitor of pollutant discharged around Tong＇an Bay and sensitive creature protection at the beginning of the seawall break - up.