Journal of Geographical Sciences >
Response of delta sedimentary system to variation of water and sediment in the Yellow River over past six decades
Received date: 2009-10-10
Revised date: 2009-11-06
Online published: 2010-08-15
Supported by
Special Expenses Program of Scientific Research in Marine Commonweal Industry, No.200805063; Scientific Research Program of State Key Laboratory of Estuarine and Coastal Research, No.2008KYYW06; Open-end Foundation of State Oceanic Administration Key Laboratory of Marine Sedimentology & Environmental Geology, No.MASEG200608
In order to find out the variation process of water-sediment and its effect on the Yellow River Delta, the water discharge and sediment load at Lijin from 1950 to 2007 and the decrease of water discharge and sediment load in the Yellow River Basin caused by human disturbances were analyzed by means of statistics. It was shown that the water discharge and sediment load into the sea were decreasing from 1950 to 2007 with serious fluctuation. The human activities were the main cause for decrease of water discharge and sediment load into the sea. From 1950 to 2005, the average annual reduction of water discharge and sediment load by means of water-soil conservation practices were 2.02×109 m3 and 3.41×108 t respectively, and the average annual volume by water abstraction for industry and agriculture were 2.52×1010 m3 and 2.42×108 t respectively. The average sediment trapped by Sanmenxia Reservoir was 1.45×108 t from 1960 to 2007, and the average sediment retention of Xiaolangdi Reservoir was 2.398×108 t from 1997 to 2007. Compared to the data records at Huanyuankou, the water discharge and sediment load into the sea decreased with siltation in the lower reaches and increased with scouring in the lower reaches. The coastline near river mouth extended and the delta area increased when the ratio of accumulative sediment load and accumulative water discharge into the sea (SSCT) is 25.4–26.0 kg/m3 in different time periods. However, the sharp decrease of water discharge and sediment load into the sea in recent years, especially the Yellow River into the sea at Qing 8, the entire Yellow River Delta has turned into erosion from siltation, and the time for a reversal of the state was about 1997.
Key words： Yellow River; water discharge; sediment load; human activities; delta
PENG Jun, CHEN Shenliang . Response of delta sedimentary system to variation of water and sediment in the Yellow River over past six decades[J]. Journal of Geographical Sciences, 2010 , 20(4) : 613 -627 . DOI: 10.1007/s11442-010-0613-z
[1] Asselman N E M, 2000. Fitting and interpretation of sediment rating curves. Journal of Hydrology, 234: 228–248. Bobrovitskaya N N, Kokorev A V, Lemeshko N A, 2003. Regional patterns in recent trends in sediment yields of
[2] Eurasian and Siberian rivers. Global and Planetary Change, 39: 127–146.
[3] Carriquiry J D, Sanchez A, 1999. Sedimentation in the Colorado River Delta and Upper Gulf of California after nearly a century of discharge loss. Marine Geology, 158: 125–145.
[4] Chen Shenliang, Zhang Guoan, Gu Guochuan, 2004. Mechanism of heavy coastal erosion on Yellow River Delta and its countermeasures. Journal of Hydraulic Engineering, (7): 1–7. (in Chinese)
[5] Chen Zhongyuan, 2007. Discussion on flux of silt discharge of the Yangtze River into the sea. Marine Geology Quaternary Geology, 27(1): 1–5. (in Chinese)
[6] Dai Shibao, Yang Shilun, Cai Aiming, 2007. Variation of sediment discharge of the Pearl River basin from 1955 to 2005. Acta Geographica Sinica, 62(5): 545–554. (in Chinese)
[7] Fanos A M, 1995. The impact of human activities on the erosion and accretion of the Nile Delta coast. Journal of Coastal Research, 11(3): 821–833.
[8] Hu Chunhong, Chen xujian, Chen Jianguo, 2008. Spatial distribution and its variation process of sedimentation in Yellow River. Journal of Hydraulic Engineering, 39(5): 518–527. (in Chinese)
[9] Mikhailova M V, 2003. Transformation of the Ebro River Delta under the impact of intense human-induced reduction of sediment runoff. Water Resources, 30(4): 370–378.
[10] Milliman J D, Syvitski J P M, 1992. Geomorphic/Tectonic control of sediment discharge to the ocean: The importance of small mountainous rivers. Journal of Geology, 100: 525–544.
[11] Morgan R P C, 1995. Soil Erosion and Conservation, 2nd ed. London: Longman, 198.
[12] Qian Ning, Zhang Zhide, 1989. Riverbed Evolvement. Beijing: Science Press. (in Chinese)
[13] Qian Ning, Zhou Wenhao, 1965. Evolution of Riverbed in Lower Reaches of the Yellow River. Beijing: Science Press. (in Chinese)
[14] Si Maochong, Gao Guoping, Bao Xianwen, 1999. Investigation Means in Marine Science. Qiangdao: Ocean University of Qingdao Press, 305–309. (in Chinese)
[15] Siakeu J, Oguchi T, Aoki T et al., 2004. Change in riverine suspended sediment concentration in central Japan in response to late 20th century human activities. Catena, 55(2): 231–254.
[16] Syvitski J P M, Vorosmarty C J, Ketmer A J et al., 2005. Impact of human on the flux of terrestrial sediment to the global ocean. Science, 308: 376–380.
[17] Thomas R B, 1988. Monitoring baseline suspended sediment in forested basins: The effects of sampling on suspended sediment rating curves. Hydrological Sciences Journal, 33: 499–514.
[18] Vorosmarty C J, Meybeckc M, Feketea B et al., 2003. Anthropogenic sediment retention: Major global impact fro registered river impoundments. Global and Planetary Change, 39: 169–190.
[19] Walling D E, Fang D, 2003. Recent trends in the suspended sediment loads of the world rivers. Global and Planetary Change, 39: 111–126.
[20] Wang Kaizhen, 1990. Evolution Law of Yellow River Estuary and Its Influence to the Lower Reaches in Thesis Collection (II): Sediment & Water and Soil Conservation. Zhengzhou: Henan Science and Technology Press. (in Chinese)
[21] Xu Jiongxin, 2002. A study of thresholds of runoff and sediment for the land accretion of the Yellow River Delta. Geographical Research, 21(2): 163–170. (in Chinese)
[22] Xu Jiongxin, 2003. Sediment fluxes to the sea as influenced by sediment delivery of the lower Yellow River. Ocenaologia et Limnologia Sinica, 34(6): 663–670. (in Chinese)
[23] Zang Qiyun, 1998. Coastal Sediment in the Yellow River Delta. Beijing: China Ocean Press. (in Chinese)
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