Abstract
The cumulative effect of cascade hydropower stations on river ecological environment has been widely concerned because of the significant streamflow hydrology change induced by dam constructions. The characteristics of the change in the lower reaches of the Jinsha River, China are analyzed based on long-term (1952–2015) hydrological and sedimentological data. The averaging coefficient, reservoir regulation coefficient (RRC), incoming sediment coefficient (ISC), and sediment transport modulus (STM), which reflect the variation of streamflow and sediment regimes, are defined and calculated. The results show that the construction and regulation of reservoirs reduces flow in flood season, increases flow in dry season, significantly altering the monthly discharge regimes. These alterations also led directly to changes in the timing of extreme flows at Pingshan Station. The monthly flow records at the basin outlet are reconstructed using stepwise regression, to reduce reservoir impacts. Comparisons of observed and reconstructed monthly flows demonstrate that the previous studies overestimated the cumulative effects of cascade reservoirs on flow processes. Furthermore, this study clearly illustrates that the reduction in sediment trapping and sediment transportation capacity together lead to the sharp reduction in annual sediment yield at the Pingshan Station. The earlier constructed reservoirs have more obvious effects on the ISC and STM than the more recent reservoirs and the effect of sediment trapping is related to reservoir location, on the main stream versus tributaries.
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References
An Q, Wu YQ, Taylor S, et al. (2009) Influence of the Three Gorges Project on saltwater intrusion in the Yangt-ze River estuary. Environmental Geology 56(8): 1679–1686. https://doi.org/10.1007/s00254-008-1266-4
Deitch MJ, Merenlender AM, Feirer S (2013) Cumulative effect of small reservoirs on streamflow in northern coastal California catchments. Water Resources Management 27: 5101–5118. https://doi.org/10.1007/s11269-013-0455-4
Ding WF, Hang EK (2011) Annual discharge and sediment load variation in Jialing River during the past 50 years. Journal of Mountain Science 8: 664–676. https://doi.org/10.1007/s11629-011-1031-0
Dos Santos NCL, Lopes TM, Gomes LC (2018) Cumulative ecological effects of a Neotropical reservoir cascade across multiple assemblages. Hydrobiologia 819(1): 77–91. https://doi.org/10.1007/s10750-018-3630-z
Gao B, Yang DW, Zhao TTG, et al. (2012) Changes in the ecoflow metrics of the Upper Yangtze River from 1961 to 2008. Journal of Hydrology 448-449: 30–38. https://doi.org/10.1016/j.jhydrol.2012.03.045
Gong GC, Chang J, Chiang KP, et al. (2006) Reduction of primary pro-duction and changing of nutrient ratio in the East China Sea: Effect of the Three Gorges Dam? Geophysical Research Letters 33(7): 3716–3730. https://doi.org/10.1029/2006gl025800
Huang XR, Zhao JW, Yang PP (2015) Wet-dry runoff correlation in Western Route of South-to-North Water Diversion Project, China. Journal of Mountain Science 12(3): 592–603. https://doi.org/10.1007/s11629-014-3180-4
Huang W, Chen J, Wang B (2010) Study on averaging effect of cascade hydropower development on flow and water temperature process. Resources and Environment in the Yangtze Basin 19(3): 335–339 (In Chinese)
Hu GS, Chen NS, Tanoli JI, et al. (2017) Debris flow susceptibility analysis based on the combined impacts of antecedent earthquakes and droughts: a case study for cascade hydropower stations in the upper Yangtze River, China. Journal of Mountain Science 14(9): 1712–1727. https://doi.org/10.1007/s11629-017-4375-1
Kondolf GM, Rubin ZK, Minear JT (2013) Dam on the Mekong: Cumulative sediment starvation. Water Resources Research 50: 5158–5169. https://doi.org/10.1002/2013WR014651
Lai XJ, Jiang JH, Yang GS, et al. (2014) Should the Three Gorges Dam be blamed for the extremely low water in th-e middle-lower Yangtze river? Hydrological Processes 28: 150–160. https://doi.org/10.1002/hyp.10077
Li HB, Zhang XF, Hu CH, et al. (2011) Impact of cascade reservoirs construction in the upper Yangtze River on sediment inflow to Three Gorges reservoirs. Journal of Hydroelectric Engineering 30(1): 94–100. (In Chinese)
Peters DL, Prowse TD (2001) Regulation effects on the lower Peace River, Canada. Hydrological Processes 15: 3181–3194. https://doi.org/10.1002/hyp.321
Richter BD, Baumgartner JV, Powell J, et al. (1996) A method for assessing hydrologic alteration within ecosystems. Conservation Biology 10: 1163–1174. https://doi.org/10.1046/j.1523-1739.1996.10041163.x
Richter BD, Baumgartner JV, Wigington R, et al. (1997) How much water does a river need? Freshwater Biology 37(1): 231–249. https://doi.org/10.1046/j.1365-2427.1997.00153.x
Richter BD, Thomas GA (2007) Restoring environmental flow by modifying dam operations. Ecology and Society 12(1): 12. https://doi.org/10.5751/es-02014-120112
Von Storch VH (1995) Misuses of statistical analysis in climate research. In: von Storch VH, Navarra A (eds.), Analysis of Climate Variability: Applications of Statistical Techniques. Springer-Verlag: Berlin. pp 11–26. https://doi.org/10.1007/978-3-662-03744-7_2
Wang X, Pang Y, Niu Y, et al. (2015) Study on the cumulative effects of cascading reservoirs in Wujiang. Science Technology and Engineering 15(03): 275–279 (In Chinese).
Wang YK, Zhang N, Wang D (2018) Investigating the impacts of cascade hydropower development on the natural flow regime in the Yangtze River, China. Science of the Total Environment 624: 1187–1194. https://doi.org/10.1016/j.scitotenv.2017.12.212
Wen X, Liu Z, Lei X, et al. (2018) Future changes in Yuan River ecohydrology: individual and cumulative impacts of climates change and cascade hydropower development on runoff and aquatic habitat quality. Science of the Total Environment 633: 1403–1417. https://doi.org/10.1016/j.scitotenv.2018.03.309
Wu H, Zeng G, Liang J, et al. (2017) Responses of landscape pattern of China’s two largest freshwater lakes to early dry season after the impoundment of Three-Gorges Dam. International Journal of Applied Earth Observation and Geoinformation 56: 36–43. https://doi.org/10.1016/j.jag.2016.11.006
Xu JX (2000) Runoff and sediment variations in the upper reaches of Changjiang River and its tributaries due to deforestation. Journal of Hydraulic Engineering 1: 72–80. (In Chinese)
Yang SL, Liu Z, Dai SB, et al. (2010) Temporal variations in water resources in the Yangtze River (Changjiang) over the Industrial Period based on reconstruction of missing monthly discharges, China. Water Resources Research 46. https://doi.org/10.1029/2009wr008589
Yang SL, Zhao QY, Belkin IM (2002) Temporal variation in the sediment load of the Yangtze River and the influences of human activities, China. Journal of Hydrology 263(1-4): 56–71. https://doi.org/10.1016/s0022-1694(02)00028-8
Yang ZS (2004) Soil erosion under different land use types and zones of Jinsha River Basin in Yunnan Province, China. Journal of Mountain Science 1(1): 46–56. https://doi.org/10.1007/bf02919359
Ye BS (2003) Changes in Lena River streamflow hydrology: Human impacts versus natural variations. Water Resources Research 29(7). https://doi.org/10.1029/2003wr001991
Yuan WH, Yin DW, Finlayson B, et al. (2012) Assessing the potential for change in the middle Yangtze River channel following impoundment of the Three Gorges Dam. Geomorphology 147-148: 27–34. https://doi.org/10.1016/j.geomorph.2011.06.039
Yue S, Wang CY (2002) Applicability of prewhitening to eliminate the influence of serial correlation on the Mann-Kendall test. Water Resources Research. https://doi.org/10.1029/2001wr000861
Zhang HB, Huang Q, Zhang SH (2011) Cumulative effects of operation of cascade reservoirs on hydrological conditions in upper reaches of Yellow River. Journal of Hohai University 39(2): 137–142. (In Chinese)
Zhang Q, Xu CY, Becker S, et al. (2006) Sediment and runoff changes in the Yangtze River basin during past 50 years. Journal of Hydrology 331(3-4): 511–523. https://doi.org/10.1016/j.jhydrol.2006.05.036
Zhang YF, Guan DX, Jin CJ, et al. (2011) Analysis of impacts of climate variability and human activity on streamflow for a river basin in northeast China. Journal of Hydrology 410: 239–247. https://doi.org/10.1016/j.jhydrol.2011.09.023
Zhang XB, Wen AB (2004) Current changes of sediment yields in the upper Yangtze River and its two biggest tributaries, China. Global and Planetary Change 41: 221–227. https://doi.org/10.1016/j.gloplacha.2004.01.008
Zhang XB, Tang Q, Long Y, et al. (2015) Recent changes of suspended sediment yields in the upper Yangtze River and its headwater tributaries. Modern Environmental Science and Engineering 1(2):64–71. https://doi.org/10.15341/mese(2333-2581)/02.01.2015/002
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This research was financially supported by the National 973 Program of China (2015CB452701) and the National Natural Science Foundation of China (Grant No. 51579161).
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Huang, Xr., Gao, Ly., Yang, Pp. et al. Cumulative impact of dam constructions on streamflow and sediment regime in lower reaches of the Jinsha River, China. J. Mt. Sci. 15, 2752–2765 (2018). https://doi.org/10.1007/s11629-018-4924-3
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DOI: https://doi.org/10.1007/s11629-018-4924-3