锦州湾围填海工程对海湾水交换能力的影响  

The effects of coastal reclamation on hydrodynamics in Jinzhou Bay

作　　者：刘明[1] 席小慧[1] 雷利元[1] 张笑[1] 毕远溥[1] 

机构地区：[1]辽宁省海洋水产科学研究院,辽宁大连116023

出　　处：《大连海洋大学学报》2013年第1期110-114,共5页Journal of Dalian Ocean University

基　　金：海洋公益性行业科研专项(20105009)

摘　　要：采用数值模拟方法分析了2000、2005、2010年锦州湾海域潮流场和海湾纳潮量及水交换指标的变化,并根据水质监测数据对锦州湾海域进行了海洋环境质量评价,分析水质环境的演变趋势。结果表明:2000—2010年锦州湾自然岸线减少近2.17 km,海域面积减少约28.1 km2;海湾纳潮量和水交换率呈现逐年减少的趋势,围填海工程的岸线变化导致2000—2005年纳潮量减小了11.92%,水交换率减少了17.51%,2005—2010年纳潮量减小了29.74%,水交换率减少了9.28%;2004—2010锦州湾海域COD、无机氮、磷酸盐、石油类的质量浓度分别为1.13～2.10、0.16～1.07、0.0030～0.0389、0.05～0.39mg/L,锦州湾海域水质质量呈逐年下降的趋势,超标污染物主要为COD、无机氮和油类。The variations in indexes of tidal current,storage capacity of tidal water and water exchange were analyzed in Jinzhou Bay in 2000,2005 and 2010 by methods of numerical simulation,and marine environmental quality and developmental tendency were evaluated by water quality monitoring data.The natural coastline was found to be decreased nearly by 2.17 km,with the coastal area reduction of 28.1 km2 in Jinzhou Bay.It was indicated that the storage capacity and water exchange in the Jinzhou Bay was descending.The decrease in storage capacity of tidal water by 11.92% was observed,and the rate of the water exchange was decreased by 17.51% from 2000 to 2005.The storage capacity of tidal water was decreased by 29.74% and the rate of the water exchange decreased by 9.28% from 2005 to 2010.The levels of COD,inorganic nitrogen,phosphate,and petroleum were found to be increased from 1.13 to 2.10,from 0.16 to 1.07,from 0.0030 to 0.0389,and from 0.05 to 0.39 mg/L in Jinzhou Bay from 2004 to 2010,respectively,indicating that the water quality is lower due to the main pollutants including COD,inorganic nitrogen and petroleum.

关 键 词：数值模拟 水交换 纳潮量 海洋工程 环境质量 

分 类 号：P731.2[天文地球—海洋科学]