海洋地质前沿2024，Vol.40Issue(4)：47-59,13.DOI:10.16028/j.1009-2722.2023.109
小清河入海污染物扩散特征及其对近岸工程建设的响应
Pollutant dispersion from the Xiaoqing River into the sea and its response to the nearshore construction
摘要
Abstract
Pollutants from rivers are the main source of offshore pollution.Xiaoqing River is the main inlet river and pollutant source in the southwestern part of Laizhou Bay,Bohai Sea.In recent years,the scale of nearshore constructions on both sides of Xiaoqing River estuary is constantly expanding.The response of the inlet pollutant dispersion to the nearshore construction region need to be studied deeply.The influence of nearshore construction on the tidal field and the dispersion characteristics of the inlet pollutants(dissolved inorganic nitrogen and active phosphate)from Xiaoqing River were numerically simulated in MIKE21 model,and the response of the inlet pol-lutant dispersion to the nearshore construction was discussed.Results show that the construction of nearshore projects on both sides of the Xiaoqing River estuary has led to a decrease of 2-21 cm/s in flow velocity in the nearshore of the estuary.Dikes and breakwaters on both sides of the estuary blocked the dispersion of pollutants to the southeast and northwest,which reduced the dispersion range of pollutants into the estuary,increased the con-centration of pollutants in the estuary,and aggravated the water pollution in local areas.Therefore,the construc-tion of nearshore projects could weaken the tidal currents around the concentration and the pollutant dispersion ca-pacity in the offshore marine areas.关键词
小清河河口/近岸工程/污染物扩散/数值模拟Key words
Xiaoqing River estuary/nearshore construction/pollutant dispersion/numerical simulation分类
海洋科学引用本文复制引用
李婉华,宋彦,冷星,张涛,伊兆晗,张学伟,林超然,孙菲菲..小清河入海污染物扩散特征及其对近岸工程建设的响应[J].海洋地质前沿,2024,40(4):47-59,13.基金项目
山东省渤海区域基础环境状况调查与评估项目子项目"海洋开发活动对莱州湾水动力条件和水交换能力影响调查与评估项目"(402001202000006_001) （402001202000006_001）
