潮-径相互作用下甬江总氮污染的降解、扩散及分布模拟

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3271 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the Finite-Volume Community Ocean Model (FVCOM), the hydrodynamic model of Ningbo-Zhoushan sea area is established in this paper. Combined with the monitoring data of sea water, the distribution of total nitrogen concentration in the area and the dynamic factors affecting the transport of pollutants are analyzed. Then, the apparent degradation coefficient method was used to supplement the decaying mechanism of tracer concentration in the DYE module, and the degradation, diffusion and distribution of total nitrogen pollutants from Yongjiang into the sea were simulated and analyzed under the conditions in the high flow period of 2021. The simulation results show that the total nitrogen pollutants imported from Yongjiang into Ningbo-Zhoushan sea area is an important factor contributing to the high concentration of total nitrogen in the coastal waters of Zhenhai and Beilun districts in Ningbo in summer 2021. Under the combined action of tidal and Yongjiang runoff, the total nitrogen pollutants imported from Yongjiang into Ningbo-Zhoushan sea area will significantly affect the sea water quality in the eastern and northern sea areas of Ningbo. Taking the summer of 2021 as an example, after considering the degradation process, the simulation results show that the total nitrogen pollutants imported from Yongjiang will increase the seawater total nitrogen concentration of Ningbo coastal station by about 0.7mg/L within 90 days.

Key words： FVCOM DYE Yongjiang total nitrogen apparent degradation coefficient numerical simulation

Received: 26 May 2023

PACS:

X522

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Qin-si
	HU Song
	WANG Xiao-hua
	LIU Peng-xia
	LIU Xing
	GAO Zhao-quan

Cite this article:

CHEN Qin-si,HU Song,WANG Xiao-hua等. Simulation of degradation, diffusion and distribution of total nitrogen pollution influenced by tide and runoff in Yongjiang River[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(1): 344-351.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I1/344

[1]	许妍,梁斌,马明辉.论重点海域综合治理攻坚战总体思路及主攻方向[J].环境保护, 2022,50(12):13-15.Xu Y, Liang B, Ma M H.The overall idea and main direction of the battle for comprehensive management of key sea areas [J].Environmental Protection, 2022,50(12):13-15.
[2]	余东,朱容娟,梁斌,等.基于陆海统筹的渤海山东省近岸海域总氮总量控制研究[J].海洋环境科学, 2021,40(6):832-837.Yu D, Zhu R J, Liang B, et al.Study on total nitrogen quantity control in Shandong Province coastal area of Bohai Sea based on land and sea coordination [J].Marine Environmental Science, 2021,40(6):832-837.
[3]	李少斌,余丹,孔俊,等.海岸带陆海气氮磷污染协同治理:监测、模拟与决策[J].环境工程, 2022,40(6):12-21.Li S B, Yu D, Kong J, et al.Coastal land-ocean-atmosphere cooperative management of nitrogen and phosphorus pollution:monitoring, modeling and decision-making [J].Environmental Engineering, 2022,40(6):12-21.
[4]	丁芮,陈学恩,曲念东.珠江口及邻近海域潮汐环流数值模拟II——河口水交换和物质输运分析[J].中国海洋大学学报, 2016,46(7):1-10.Ding R, Chen X N, Qu N D.Three-dimensional high-resolution numerical study of the tide and circulation in the Pearl River Estuary and its adjacent waters Part II:Estuatine mass transport and water exchange [J].Periodical of Ocean University of China, 2016,46(7):1-10.
[5]	李卫卫,孙昭晨,梁书秀.辽河口区径流对污染物漂移扩散的影响[J].海洋环境科学, 2019,38(2):294-302.Li W W, Sun Z C, Liang S X.Effects of the Liao river discharge on the dispersion of pollutants [J].Marine Environmental Science, 2019, 38(2):294-302.
[6]	刘广州,胡嘉镗,李适宇.珠江口夏季海陆源有机碳的模拟研究——分布特征、贡献比重及其迁移转化过程[J].中国环境科学, 2020,40(1):162-173.Liu G Z, Hu J T, Li S Y.Simulation of marine and terrestrial organic carbon in the Pearl River Estuary in summer——distribution characteristics, contribution rate and migration and transformation processes [J].China Environmental Science, 2020,40(1):162-173.
[7]	王平,张宁川.大连湾保守污染物迁移三维模型及应用[J].海洋通报, 2013,32(3):265-274.Wana P, Zhang N C.Three-dimensional model of conservative pollutant migration and its application in the Dalian Bay [J].Marine Science Bulletin, 2013,32(3):265-274.
[8]	李文杰,邵学强.甬江流域入海径流量研究[J].浙江水利科技, 2007, 3(1):53-59.Li W J, Shao X Q.Research on runoff amount into sea in Yongjiang River basin [J].Zhejiang Hydrotechnics, 2007,3(1):53-59.
[9]	王康缮,陈耕心.金塘水道的流场特征[J].海洋通报, 1989,8(4):10-20.Wang K S, Chen G X.Features of flow field of the jintang channel [J].Marine Science Bulletin, 1989,8(4):10-20.
[10]	倪云林,巩明,杨辉,等.甬江口及附近海域冲淤变化研究分析[J].浙江海洋学院学报(自然科学版), 2013,32(6):537-542.Ni Y L, Gong M, Yang H, et al.Research and analysis on erosion and sedimentation variation of Yongjiang River mouth and vicinity [J].Journal of Zhejiang Ocean University (Natural Science), 2013,32(6):537-542.
[11]	彭腾腾,纪棋严,刘宇,等.甬舟航道潮汐潮流的数值模拟及特征分析[J].海洋预报, 2022,39(3):94-106.Peng T T, Ji Q Y, Liu Y, et al.Numerical simulation and characteristic analysis of tidal current in the Yongzhou channel [J].Marine Forecasts, 2022,39(3):94-106.
[12]	曹欣中,唐龙妹,张月秀.宁波、舟山内海域实测海流分析及潮流场的数值模拟[J].东海海洋, 1996,14(2):1-9.Cao X Z, Tang L M, Zhang Y X.The analysis of the observed sea current and the numerical model of the tidal current field for the inner sea area of Ningbo and Zhoushan [J].Donghai Marine Science, 1996,14(2):1-9.
[13]	张燕,张越美,孙英兰,等.宁波-舟山海域环境容量研究I.三维潮流数值模拟[J].海洋环境科学, 2005,24(3):60-63.Zhang Y, Zhang Y M, Sun Y L, et al.A three-dimension numerical tidal model for Ningbo-Zhoushan sea area [J].Marine Environmental Science, 2005,24(3):60-63.
[14]	蔡惠文,孙英兰,张越美,等.宁波-舟山海域污染物扩散的数值模拟[J].中国海洋大学学报, 2006,36(6):975-980.Cai H W, Sun Y L, Zhang Y M, et al.Numerical simulation of pollutant diffusion in the Ningbo-Zhoushan Sea area [J].Periodical of Ocean University of China, 2006,36(6):975-980.
[15]	Chen C S, Beardsley R C, Cowles G, et al.An unstructured grid, finite-volume community ocean model FVCOM user manual [M].New Bedford:University of Massachuetts-Dart mouth, 2013.
[16]	宋倩,胡松.海洋模式FVCOM2.6并行计算性能TAU分析[J].计算机工程与科学, 2011,33(12):87-93.Song Q, Hu S.Analysis of the parallel computing performance of ocean Model FVCOM2.6 Using TAU [J].Computer Engineering & Science, 2011,33(12):87-93.
[17]	胡松,陈长胜,高郭平,等.全球非结构网格有限体积法海洋模式东中国海潮汐计算初步分析[J].上海海洋大学学报, 2012,21(4):621-629.Hu S, Chen C S, Gao G P, et al.Preliminary analysis of tide simulation of the East China Sea of the GlobalFVCOM model [J].Journal of Shanghai Ocean University, 2012,21(4):621-629.
[18]	Egbert G D, Erofeeva S Y.Efficient inverse modeling of barotropic ocean tides [J].Journal of Atmospheric and Oceanic Technology, 2002, 19(1):183-204.
[19]	Egbert G D, Bennett A F, Foreman M G G.TOPEX/POSEIDON tides estimated using a global inverse model [J].Journal of Geophysical Research, 1994,99(1):821-852.
[20]	Willmott C J.On the validation of models [J].Physical Geography, 1981,2(2):184-194.
[21]	中华人民共和国水利部.中国河流泥沙公报[M].北京:中国水利水电出版社, 2016-2022.Ministry of Water Resources of the People's Republic of China.Chinese river sediment bulletin [M].Beijing:China Water & Power Press, 2016-2022.
[22]	中华人民共和国水利部.中华人民共和国水文年鉴:浙闽台河流水文资料[M].北京:中华人民共和国水利部水文司, 2016-2022.Ministry of Water Resources of the People's Republic of China.Annual Hydrological Report P.R.China:Hydrological data of river basins in Zhejiang, Fujian province and Taiwan region [M].Beijing:Department of Hydrology, Ministry of Water Resources, PRC, 2016-2022.
[23]	Hu S, Townsend D W, Chen C S, et al.Tidal pumping and nutrient fluxes on Georges Bank:A process-oriented modeling study [J].Journal of Marine Systems, 2008,74(1):528-544.
[24]	冯帅,李叙勇,邓建才.太湖流域上游河网污染物降解系数研究[J].环境科学学报, 2016,36(9):3127-3136.Feng S, Li X Y, Deng J C.A study on degradation coefficients of pollutants in the upstream river network of the Lake Taihu basin [J].Acta Scientiae Circumstantiae, 2016,36(9):3127-3136