Sensitivity analysis for the total nitrogen pollution of the Danjiangkou Reservoir based on a 3-D water quality model

Abstract

Inter-basin water transfers containing a great deal of nitrogen are great threats to human health, biodiversity, and air and water quality in the recipient area. Danjiangkou Reservoir, the source reservoir for China’s South-to-North Water Diversion Middle Route Project, suffers from total nitrogen pollution and threatens the water transfer to a number of metropolises including the capital, Beijing. To locate the main source of nitrogen pollution into the reservoir, especially near the Taocha canal head, where the intake of water transfer begins, we constructed a 3-D water quality model. We then used an inflow sensitivity analysis method to analyze the significance of inflows from each tributary that may contribute to the total nitrogen pollution and affect water quality. The results indicated that the Han River was the most significant river with a sensitivity index of 0.340, followed by the Dan River with a sensitivity index of 0.089, while the Guanshan River and the Lang River were not significant, with the sensitivity indices of 0.002 and 0.001, respectively. This result implies that the concentration and amount of nitrogen inflow outweighs the geographical position of the tributary for sources of total nitrogen pollution to the Taocha canal head of the Danjiangkou Reservoir.

Keywords

nitrogen pollution / 3-D water quality model / sensitivity analysis / Danjiangkou Reservoir / South-to-North Water Diversion Project

References

[1] Bailis R, Ezzati M, Kammen D (2005). Mortality and greenhouse gas impacts of biomass and petroleum energy futures in Africa. Science, 308(5718): 98–103

[2] Baroni G, Tarantola S (2014). a general probabilistic framework for uncertainty and global sensitivity analysis of deterministic models: A hydrological case study. Environ Model Softw, 51: 26–34

[3] Camargo J A, Alonso A (2006). Ecological and toxicological effects of inorganic nitrogen pollution in aquatic ecosystems: a global assessment. Environ Int, 32(6): 831–849

[4] Campbell J E, Carmichael G R, Chai T, Mena-Carrasco M, Tang Y, Blake D R, Blake N J, Vay S A, Collatz G J, Baker I, Berry J A, Montzka S A, Sweeney C, Schnoor J, Stanier C O (2008). Photosynthetic control of atmospheric carbonyl sulfide during the growing season. Science, 322(5904): 1085–1088

[5] Cea L, Bermúdez M, Puertas J (2011). Uncertainty and sensitivity analysis of a depth-averaged water quality model for evaluation of Escherichia coli concentration in shallow estuaries. Environ Model Softw, 26(12): 1526–1539

[6] Chan S N, Thoe W, Lee J H W (2013). Real-time forecasting of Hong Kong beach water quality by 3D deterministic model. Water Res, 47(4): 1631–1647

[7] Chen J S, Gao X M, He D W, Xia X H (2000). Nitrogen contamination in the Yangtze River system, China. J Hazard Mater, A73: 107–113

[8] Chen L B, Yin X A, Liu H F, Yang Z F (2013). Identifying candidate sites of harmful algae bloom during the processes of great reservoir impoundment and water diversion. In: Proceedings of ISRS 2013, Beijing, China, 483–490

[9] Finlay J C, Small G E, Sterner R W (2013). Human influences on nitrogen removal in lakes. Science, 342(6155): 247–250

[10] Galloway J N, Townsend A R, Erisman J W, Bekunda M, Cai Z C, Freney J R, Martinelli L A, Seitzinger S P, Sutton M A (2008). Transformation of the nitrogen cycle: recent trends, questions, and potential solutions. Science, 320(5878): 889–892

[11] Gamerith V, Neumann M B, Muschalla D (2013). Applying global sensitivity analysis to the modelling of flow and water quality in sewers. Water Res, 47(13): 4600–4611

[12] Guo W X, Fu Y C, Ruan B Q, Ge H F, Zhao N (2014). Agricultural non-point source pollution in the Yongding River Basin. Ecol Indic, 36: 254–261

[13] Hamrick J M (1992). A 3-D Environmental Fluid Dynamics Computer Code: Theoretical and Computational Aspects, Special Report 317. The College of William and Mary, Virginia Institute of Marine Science, 1–63

[14] Hof A, den Elzen M, van Vuuren D (2008). Analysing the costs and benefits of climate policy: value judgements and scientific uncertainties. Glob Environ Change, 18(3): 412–424

[15] Ji Z G, Hu G D, Shen J, Wan Y S (2007). 3-D modeling of hydrodynamic processes in the St. Lucie Estuary. Estuar Coast Shelf Sci, 73(1 ‒ 2): 188–200

[16] Jin K R, Ji Z G, James R T (2007). 3-D water quality and SAV modeling of a large shallow lake. J Great Lakes Res, 33: 28–45

[17] Li Y P, Acharya K, Chen D, Stone M (2010). Modeling water ages and thermal structure of Lake Mead under Changing water levels. Lake Reserv Manage, 26(4): 258–272

[18] Liang Z J, Liu Y, Ge F, Xu Y, Tao N G, Peng F, Wong M H (2013). Efficiency assessment and pH effect in removing nitrogen and phosphorus by algae-bacteria combined system of Chlorella vulgaris and Bacillus licheniformis. Chemosphere, 92(10): 1383–1389

[19] Liu R M, Zhang P P, Wang X J, Chen Y X, Shen Z Y (2013). Assessment of effects of best management practices on agricultural non-point source pollution in Xiangxi River watershed. Agric Water Manage, 117: 9–18

[20] Liu S M, Zhang J, Chen H T, Wu Y, Xiong H, Zhang Z F (2003). Nutrients in the Changjiang and its tributaries. Biogeochemistry, 62(1): 1–18

[21] Olmanson L G, Brezonik P L, Bauer M E (2013). Airborne hyperspectral remote sensing to assess spatial distribution of water quality characteristics in large rivers: the Mississippi River and its tributaries in Minnesota. Remote Sens Environ, 130: 254–265

[22] Palma P, Ledo L, Soares S, Barbosa I R, Alvarenga P (2014). Spatial and temporal variability of the water and sediments quality in the Alqueva reservoir (Guadiana Basin; southern Portugal). Sci Total Environ, 470–471: 780–790

[23] Park K, Kuo A, Shen J, Hamrick J A X (1995). A three-dimensional hydrodynamic-eutrophication model (HEM-3D): description of water quality and sediment process submodels (EFDC water quality model). Special report no. 327 in applied marine science and ocean engineering (rev. by Tetra Tech, Inc. 2000)

[24] Poikolainen J, Lippo H, Hongisto M, Kubin E, Mikkola K, Lindgren M (1998). On the abundance of epiphytic green algae in relation to the nitrogen concentrations of biomonitors and nitrogen deposition in Finland. Environ Pollut, 102(1): 85–92

[25] Qi Q, Pen H, Zhang W S, Lei S P, Xiong W (2007). Vertical water temperature model of Danjiangkou Reservoir. Yangtze River, 38: 51–53 (in Chinese)

[26] Saltelli A, Chan K, Scott E (2000). Sensitivity Analysis. Chichester: Wiley

[27] Schouten M, Verwaart T, Heijman W (2014). Comparing two sensitivity analysis approaches for two scenarios with a spatially explicit rural agent-based model. Environ Model Softw, 54: 196–210

[28] Shen Z Y, Hong Q, Yu H, Liu R M (2008). Parameter uncertainty analysis of the non-point source pollution in the Daning River watershed of the Three Gorges Reservoir Region, China. Sci Total Environ, 405(1‒3): 195–205

[29] Shen Z Y, Liao Q, Hong Q, Gong Y W (2012). An overview of research on agricultural non-point source pollution modelling in China. Separ Purif Tech, 84: 104–111

[30] Sincock A M, Wheater H S, Whitehead P G (2003). Calibration and sensitivity analysis of a river water quality model under unsteady flow conditions. J Hydrol (Amst), 277(3-4): 214–229

[31] Sun X Y, Newham L T H, Croke B F W, Norton J P (2012). Three complementary methods for sensitivity analysis of a water quality model. Environ Model Softw, 37: 19–29

[32] Wang J H, Shen Y M, Zhen H, Feng Y, Wang Z X, Yang X (2011). 3-D numerical modelling of water quality in Dahuofang Reservoir in China. Sci China Phys Mech Astron, 54: 1328–1341

[33] Xu N, Duan S, Lin Q, Hu R, Han B (2004). Analysis on nitrogen pollution and eutrophication of the large and medium reservoirs for water supply in Guangdong Province. Chinese Journal of Ecoligy, 23: 63–67 (in Chinese)

[34] Yi X, Zou R, Guo H (2016). Global sensitivity analysis of a three-dimensional nutrients-algae dynamic model for a large shallow lake. Ecol Modell, 327: 74–84

[35] Zhang M, Xu Y Y, Shao M L, Cai Q H (2012). Sedimentary nutrients in the mainstream and its five tributary bays of a large subtropical reservoir (Three Gorges Reservoir, China). Quat Int, 282: 171–177

[36] Zhang Q F, Xu Z F, Shen Z H, Li S Y, Wang S S (2009). The Han River watershed management initiative for the South-to-North Water Transfer project (Middle Route) of China. Environ Monit Assess, 148(1–4): 369–377

[37] Zhao L, Li Y Z, Zou R, He B, Zhu X, Liu Y, Wang J S, Zhu Y G (2013). A 3-D water quality modeling approach for exploring the eutrophication responses to load reduction scenarios in Lake Yilong (China). Environ Pollut, 177: 13–21

[38] Zhao L, Zhang X L, Liu Y, He B, Zhu X, Zou R, Zhu Y G (2012). 3-D hydrodynamic and water quality model for TMDL development of Lake Fuxian, China. J Environ Sci (China), 24(8): 1355–1363

Acknowledgments

The financial support of the National Basic Research Program of China (No. 2011BAC12B02) and the Creative Research Groups of the National Natural Science Foundation of China (Grant No. 51121003) are gratefully acknowledged.

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2017 Higher Education Press and Springer-Verlag Berlin Heidelberg