暴雨径流潜流过程及其对分层水库水质的影响

Abstract
Figure/Table
References (27)
Related Citation (15)

Download: PDF (682 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

To explore the intrusion processes of the density current and its influences on water quality in rainfall events, water temperature, dissolved oxygen, turbidity and related contaminants were monitored in June 2015 and October 2017. 11 monitoring sections were set along the upstream to main basin in Jinpen Reservoir (JPR). The underflow plunged into reservoir undergoes three stages when the inflow was 300~400m³/s:whole-section intrusion with greater water velocity, bottom intrusion with high density and mid-intrusion due to sedimentation of slit. The underflow caused the loss of thermal stability of water column, while the dissolved oxygen in the middle and lower water column were supplemented. Quantities of slit with underflow containing organic matters, nutrients and inorganic substances were transformed into reservoir and the concentration of total nitrogen, total phosphorus, turbidity and other index were resultantly increased in water column. For example, in June 2015, TN, TP, COD_Mn and turbidity were increased from 1.60, 0.021, 3.70mg/L and 5NTU to 2.37, 0.100, 5.80mg/L and 93NTU, respectively.

Key words： storm runoff density underflow nutrient salt non-point source pollution

Received: 10 November 2018

PACS:

X524

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I7/3064

[1]	杨帆,蒋轶锋,王翠翠,等.西湖龙泓涧流域暴雨径流氮磷流失特征[J]. 环境科学, 2016,37(1):141-147. Yang F, Jiang Y F, Wang C C, et al. Characteristics of nitrogen and phosphorus losses in Longhong ravine basin of Westlake in rainstorm runoff[J]. Environmental Science, 2016,37(1):141-147.
[2]	解河海,张金良,郝振纯,等.水库异重流研究综述[J]. 人民黄河, 2008,30(5):28-30. Xie H H, Zhang J L, Hao Z C, et al. Overview of researches on density currents in reservoir[J]. Yellow River, 2008,30(5):28-30.
[3]	Marti CL, Mills R, Imberger J. Pathways of multiple inflows into a stratified reservoir:Thomson Reservoir, Australia[J]. Advances in Water Resources, 2011,34(5):551-561.
[4]	Lamb M P, Mohrig D. Do hyperpycnal-flow deposits record river-flood dynamics?[J]. Geology, 2009,37(12):1067-1070.
[5]	李涛,夏军强,张俊华,等.水库异重流潜入点流速分布及其判别式改进[J]. 工程科学与技术, 2017,49(2):62-68. Li T, Xia J Q, Zhang J H, et al. Vertical velocity distribution and improved discriminant formula of turbidity current at the plunging point in reservoir[J]. Advanced Engineering Sciences, 2017,49(2):62-68.
[6]	Wei L, Jiang D, Tao C. Effects of Flood on Thermal Structure of a Stratified Reservoir[J]. Procedia Environmental Sciences, 2011, 10(Part B):1811-1817.
[7]	Wang S, Qian X, Wang Q H, et al. Modeling turbidity intrusion processes in flooding season of a canyon-shaped reservoir, South China[J]. Procedia Environ. Sci., 2012,13:1327-1337.
[8]	李东青,梁籍,张立燕,等.密云库区1991~2011年水质变化趋势研究[J]. 中国环境科学, 2015,35(6):1675-1685. Li D Q, Liang J, Zhang L Y, et al. The research of water quality trend in the Miyun Reservoir from 1991 to 2011[J]. China Environmental Science, 2015,35(6):1675-1685.
[9]	Thothong W, Huon S, Janeau J L. Impact of land use change and rainfall on sediment and carbon accumulation in a water reservoir of North Thailand[J]. Agric. Ecosyst. Environ., 2011,140:521-533.
[10]	国家环境保护总局水和废水监测分析方法编委会.水和废水监测分析方法)[M]. 4版.北京:中国环境科学出版社, 2002. The State Environmental Protection Administration The Water and Wastewater Monitoring Analysis Method Editorial Board. Water and wastewater monitoring analysis method[M]. 4th Edition. Beijing:China Environmental Science Press, 2002.
[11]	杨霞.三峡水库香溪河库湾异重流背景下水华暴发影响因子研究[D]. 宜昌:三峡大学, 2011. Yang X. Main controlling factors of algae bloom under reverse density current in Xiangxi Bay of Three Gorges Reservoir[D]. Yichang:China Three Gorges University, 2011.
[12]	龙圣海,黄廷林,李扬,等.基于MIKE3的金盆水库三维水温结构模拟研究[J]. 水力发电学报, 2016,35(11):16-24. Long S H, Huang T L, Li Y, et al. Water temperature model for Jinpen Reservoir based on MIKE3[J]. Journal of Hydroelectric Engineering, 2016,35(11):16-24.
[13]	李钟顺,陈永灿,刘昭伟,等.密云水库水温分布特征[J]. 清华大学学报(自然科学版), 2012,(6):798-803. Li Z S, Chen Y C, Liu Z W, et al. Water temperature distribution in the Miyun Reservoir[J]. J Tsinghua Univ. (Sci & Tech), 2012,(6):798-803.
[14]	陶美,逄勇,王华,等.洪水对水库水温分层结构的影响[J]. 水资源保护, 2013,29(5):38-44. Tao M, Pang Y, Wang H, et al. Efects of floods on reservoir temperature hierarchy[J]. Water Resources Protection, 2013,29(5):38-44.
[15]	Ma W X, Huang T L, Li X, et al. The effects of storm runoff on water quality and the coping strategy of a deep canyon-shaped source water reservoir in China[J]. International Journal of Environmental Research & Public Health, 2015,12(7):7839-7855.
[16]	丛海兵,黄廷林,缪晶广,等.扬水曝气器的水质改善功能及提水、充氧性能研究[J]. 环境工程学报, 2007,1(1):7-13. Cong H B, Huang T L, Miao J G, et al. Study on water improvement function, capacity of lifting water and oxygenation of a water-lifting aerator[J]. Chinese Journal of Environmental Engineering, 2007,1(1):7-13.
[17]	何剑波.千岛湖水温、溶解氧及叶绿素a垂向特征研究[D]. 杭州:浙江工业大学, 2014. He J B. Vertical characteristics of water temperature, dissolved oxygen and Chlorophyll a in Qiandaohu[D]. Hangzhou:Zhejiang University of Technology, 2014.
[18]	曾康,黄廷林,马卫星,等.金盆水库汛期高浊水径流的潜入及热分层水体水质响应[J]. 中国环境科学, 2015,35(9):2778-2786. Zeng K, Huang T L, Ma W X, et al. Water-quality responses of the intrusion of high-turbidity runoff to the thermal stratified Jin-pen Reservoir during flood season[J]. China Environmental Science, 2015,35(9):2778-2786.
[19]	张莹莹,张经,吴莹,等.长江口溶解氧的分布特征及影响因素研究[J]. 环境科学, 2007,28(8):1649-1654. Zhang Y Y, Zhang J, Wu Y, et al. Characteristics of dissolved oxygen and its affecting factors in the Yangtze Estuary[J]. Environmental Science, 2007,28(8):1649-1654.
[20]	苏露,黄廷林,李楠,等.分层型水源水库沉积物需氧量特性[J]. 环境科学, 2018,39(3):1159-1166. Su L, Huang T L, Li N, et al. Characteristics of sediment oxygen demand in a drinking water reservoir[J]. Environmental Science, 2018, 39(3):1159-1166.
[21]	Hur J, Jung N C, Shin J K. Spectroscopic distribution of dissolved organic matter in a dam reservoir impacted by turbid storm runoff[J]. Environmental Monitoring & Assessment, 2007,133(1-3):53-67.
[22]	Fink G, Wessels M, Wüest A. Flood frequency matters:Why climate change degrades deep-water quality of peri-alpine lakes[J]. Journal of Hydrology, 2016,540:457-468.
[23]	Ran Q, Su D, Li P, et al. Experimental study of the impact of rainfall characteristics on runoff generation and soil erosion[J]. Journal of Hydrology, 2012,424-425(6):99-111.
[24]	GB3838-2002地表水环境质量标准[S]. GB3838-2002 Surface water environmental quality standards[S].
[25]	边博.前期晴天时间对城市降雨径流污染水质的影响[J]. 环境科学, 2009,30(12):3522-3526. Bian B. Effect of antecedent dry period on water quality of urban storm runoff pollution[J]. Environmental Science, 2009,30(12):3522-3526.
[26]	宋小燕,穆兴民,高鹏,等.松花江流域哈尔滨站降雨径流历史演变及其驱动力分析[J]. 中国水土保持科学, 2010,8(2):46-51. Song X Y, Mu X M, Gao P, et al. Analysis on historical evolution and driving force of rainfall and runoff of Harbin Station in Songhua River[J]. Science of Soil and Water Conservation, 2010,8(2):46-51.
[27]	王晓燕,朱风云,王晓峰,等.密云水库流域降雨径流土壤中氮磷流失规律-以石匣试验区为例[J]. 首都师范大学学报(自然科学版), 2001,22(2):79-85. Wang X Y, Zhu F Y, Wang X F, et al. Loss of nutrients in runoff and soil in the watershed of Miyun Reservoir-as an example of Shixia experimental area[J]. Journal of Capital Normal University (Natural Science Edition), 2001,22(2):79-85.