近16年三峡库区径流输沙变化分析

doi:10.16843/j.sswc.2021.01.009

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1707 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] Runoff and sediment regime play important roles in the stability of fluvial ecosystem and may alter river morphology. The multi-relationship between runoff and sediment is widely used to clarify spatial-temporal change law of a river. The Three Gorges Reservoir Region is one of the most important ecological area and the operation of the Three Gorges Reservoir (the largest reservoir in China) has huge influence on the runoff and sediment. This study may expand our understanding of the multi-relationship between runoff and sediment and give reference to reservoir operation and sediment problem. [Methods] Based on the runoff and sediment data of three major hydrologic stations (Zhutuo station: Main inlet hydrological station of the Three Gorges Reservoir. Cuntan station: Downstream hydrological station near the intersection of Jialingjiang and Yangtze River. Yichang station: Main outlet hydrological station of the Three Gorges Reservoir), Mann-Kendall test and double cumulative curve analysis method were conducted to analyze the statistical characteristics, trend, mutations in runoff and sediment time series, and the correlation between runoff and sediment to discover runoff and sediment changes in recent years. [Results] 1) The annual variance of runoff and sediment of all the hydrological stations were similar, which were concentrated in May to October (flood season). As the observation station located at the downstream of the reservoir, Yichang station dispersed its runoff in non-flood season (November to April in next year) and concentrated sediment in flood season. Deviation coefficient of annual runoff (C_v) ranged between 0.101-0.111 and deviation coefficient of annual sediment (C_s) was in the range of 0.510-1.172. 2) Annual runoff in 3 stations showed an indistinctive increase trend (P>0.05), while sediment showed significant decrease trend (P<0.01). Runoff and sediment time series mutations happened in 2005 and 2013 respectively, which could be explained by the operation of water conservancy and hydropower project in upstream, special hydrological year and reservoir regulation activities. 3) Relationships between runoff and sediment varied in different time series, results were associated with human activities and fluvial environmental changes. [Conclusions] In general, comparing to runoff, sediment presents more significant change in recent years. Climate changes and human activities both affect sediment change and the latter one is more notable. Human activities, especially the construction of reservoirs and hydropower projects, take the major role in the decline of sediment, soil and water conservation functions as well.

Key words： statistical eigenvalue of runoff and sediment tendency and mutation analysis relationship between runoff and sediment Three Gorges Reservoir Region main stream of Yangtze River

Received: 02 September 2019

PACS:

TV121+.4

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Shuhui
	SU Boru
	WANG Yunqi
	WANG Yujie
	ZHU Jinqi
	FU Jing

Cite this article:

WANG Shuhui,SU Boru,WANG Yunqi, et al. Change analysis of runoff and sediment in the Three Gorges Reservoir Region in recent 16 years[J]. SSWC, 2021, 19(1): 69-78.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2021.01.009 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2021/V19/I1/69

[1]	郭文献, 李越, 王鸿翔, 等. 三峡水库对下游河流水沙情势影响评估[J]. 中国农村水利水电, 2018(11):87. GUO Wenxian, LI Yue, WANG Hongxiang, et al. The assessment of the impact of Three Gorges Reservoir on runoff and sediment in the lower reaches[J]. China Rural Water and Hydropower, 2018(11):87.
[2]	许全喜, 童辉. 近50年来长江水沙变化规律研究[J]. 水文, 2012, 32(5):38. XU Quanxi, TONG Hui. Characteristics of flow and sediment change in Yangtze River in recent 50 years[J]. Journal of China Hydrology, 2012, 32(5):38.
[3]	柴元方, 李义天, 李思璇, 等. 长江流域近期水沙变化趋势及成因分析[J]. 灌溉排水学报, 2017, 36(3):94. CHAI Yuanfang, LI Yitian, LI Sixuan, et al. Analysis of recent variation trend and cause of runoff and sediment load variations in the Yangtze River basin[J]. Journal of Irrigation and Drainage, 2017, 36(3):94.
[4]	张绪进, 母德伟, 陈贤祎. 上游来水来沙变化及对三峡水库回水变动区泥沙淤积的影响[J]. 水运工程, 2009(8):94. ZHANG Xujin, MU Dewei, CHEN Xianyi. Impact on sediment deposition in the backwater of the Three Gorges Reservoir Area due to changes of the upstream sediment runoff[J]. Port & Waterway Engineering, 2009(8):94.
[5]	武旭同, 李娜, 王腊春. 近60年来长江干流水沙特征分析[J]. 泥沙研究, 2016,41(5):40. WU Xutong, LI Na, WANG Lachun. Characteristics of runoff and sediment discharge in Yangtze River in recent 60 years[J]. Journal of Sediment Research, 2016,41(5):40.
[6]	李清溪. 三峡库区典型流域水沙趋势及输沙模型研究[D]. 武汉:长江科学院, 2018:6. LI Qingxi. Study on the trend of water and sediment and the model of sediment transport in typical drainage area of Three Gorges Reservoir area[D]. Wuhan:Changjiang River Scientific Research Institute, 2018:6.
[7]	刘惠英, 高强. 三峡库区龙河流域水沙关系驱动因子贡献率分析[J]. 中国水土保持科学, 2015, 13(5):1. LIU Huiying, GAO Qiang. Contribution rate of driving factors on the rainfall-sediment relationship of Longhe river watershed in the Three Gorges Reservoir region[J]. Science of Soil and Water Conservation, 2015, 13(5):1.
[8]	刘惠英, 鲁向晖, 张平仓, 等. 三峡库区香溪河流域水沙关系变化及其驱动因素[J]. 水土保持通报, 2015, 35(5):17. LIU Huiying, LU Xianghui, ZHANG Pingcang, et al. Variation of runoff and sediment discharge and its driving factors in Xiangxi river watershed in Three Gorges Reservoir area[J]. Bulletin of Soil and Water Conservation, 2015, 35(5):17.
[9]	钟亮, 潘云文, 蒋孜伟. 长江重庆主城区河段水沙变化特征分析[J]. 泥沙研究, 2015,40(6):65. ZHONG Liang, PAN Yunwen, JIANG Ziwei. Analysis of variation characteristics for runoff and suspended load runoff in Chongqing reach of the Yangtze River[J]. Journal of Sediment Research, 2015,40(6):65.
[10]	韩闪闪. 三峡水库进出库水沙变化及宜昌至城陵矶河道的响应[D]. 北京:中国水利水电科学研究院, 2015:19. HAN Shanshan. Water-sediment variation of Three Gorges Reservoir and the Yichang-Chenglingji channel re-sponses[D]. Beijing:China Institute of Water Resources & Hydropower Research, 2015:19.
[11]	庞延杰. 三峡水库区间泥沙输移沉积特征研究[D]. 武汉:长江科学院, 2018:9. PANG Yanjie. Characteristics of sediment transport and deposition in the Three Gorges Reservoir area[D]. Wuhan:Changjiang River Scientific Research Institute, 2018:9.
[12]	马颖, 李琼芳, 王鸿杰, 等. 人类活动对长江干流水沙关系的影响的分析[J]. 水文, 2008, 28(2):38. MA Ying, LI Qiongfang, WANG Hongjie, et al. Human-induced alteration in the correlation of the runoff and sediment load of the Yangtze River[J]. Journal of China Hydrology, 2008, 28(2):38.
[13]	陈桂亚. 长江上游控制性水库群联合调度初步研究[J]. 人民长江, 2013, 44(23):1. CHEN Guiya. Preliminary study on joint-operation of controlling reservoirs on upstream Yangtze River[J]. Yangtze River, 2013, 44(23):1.
[14]	CHEN Jing, WU Xiaodan, FINLAYSON Brain L, et al. Variability and trend in the hydrology of the Yangtze River, China:Annual precipitation and runoff[J]. Journal of Hydrology, 2014, 513(5):403.
[15]	黄仁勇. 长江上游梯级水库泥沙输移与泥沙调度研究[D]. 武汉:武汉大学, 2016:12. HUANG Renyong. Study on the sediment transport and sediment operation of Cascade reservoirs in the upper Chang-jiang River[D]. Wuhan:Wuhan University, 2016:12.
[16]	李海宁, 张燕菁. 三峡水库进出库水沙特征及其影响因素分析[J]. 人民长江, 2015, 46(5):13. LI Haining, ZHANG Yanjing. Analysis of characteristics of inflow and outflow runoff and sediment in Three Gorges Reservoir and its influential factors[J]. Yangtze River, 2015, 46(5):13.
[17]	PENG Tao, TIAN Hui, SINGH V P, et al. Quantitative assessment of drivers of sediment load reduction in the Yangtze River basin, China[J]. Journal of Hydrology, 2020(580):124242.
[18]	WANG Houjie, SAITO Yoshiki, ZHANG Yong, et al. Recent changes of sediment flux to the western Pacific Ocean from major rivers in East and Southeast Asia[J]. Earth-Science Reviews, 2011, 108(1):80.
[19]	田清. 近60年来气候变化和人类活动对黄河、长江、珠江水沙通量影响的研究[D]. 上海:华东师范大学, 2016:7. TIAN Qing. Impacts of climate change and human activity on the water and sediment flux of the Yellow, Yangtze and Pearl river basins over the past 60 years[D]. Shanghai:East China Normal University, 2016:7.
[20]	金兴平, 许全喜. 长江上游水库群联合调度中的泥沙问题[J]. 人民长江, 2018, 49(3):1. JIN Xingping, XU Quanxi. Sediment issues in joint dispatch of reservoir group in upper Yangtze River[J]. Yangtze River, 2018, 49(3):1.