三峡库区刘家沟小流域径流泥沙特征及趋势分析

doi:10.16843/j.sswc.2022.04.001

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (879 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] The relationship between runoff and sediment in small watershed is a complex physical process of the interaction between rainfall and underlying surface. Rainfall and human activities cause a significant impact on the relationship between water and sediment in small watersheds. Monitoring the occurrence and transmission direction of soil and water loss process is conducive to revealing the mechanism of runoff and sediment yield in small watershed. [Methods] The inter-annual variation of runoff and sediment transport was analyzed by mathematical statistics, and the annual inner diameter flow and sediment transport were calculated using the runoff and sediment transport of each month for many years. Combined with Mann-Kendall rank correlation test, the trend of runoff and sediment transport in Liujiagou small watershed was explained, and the power function of fitting equation reflected the correlation of runoff and sediment. [Results] 1) The average annual runoff, sediment transport and peak discharge of small watershed were 582000 m³, 206.00t and 12.49 m³/s respectively. The variation coefficient of annual sediment transport was 151.92%, which was much higher than that of annual runoff of 42.50%. The annual inner diameter flow and sediment transport were mainly concentrated from May to September, accounting for about 85% of the whole year. The inter-annual variation of runoff in the small watershed was large, and the inter-annual sediment transport fluctuated. The maximum runoff coefficient was 2.38 times of the minimum runoff coefficient, and the variation coefficient of annual sediment transport was greater than the annual runoff and annual rainfall. 2) The abrupt change points of runoff and sediment transport in small watersheds began to change from 2006 to 2007. The abrupt change points of sediment transport were more than that of runoff. The significant abrupt change points of runoff in small watersheds occurred in 2018, and the abrupt change points of sediment transport mainly occurred in 2006, 2012 and 2020. 3) The annual rainfall of small watershed had a greater impact on runoff (coefficient of determination 0.7454) and less impact on annual sediment transport (coefficient of determination 0.3658). The annual runoff, sediment transport and rainfall were positively correlated, indicating that the quality of monitoring data was valid. The inter-annual variation of rainfall and runoff in small watershed was small. The variation of runoff was affected not only by precipitation, but also by other factors. The ecological restoration project of soil and water conservation generally reduced the runoff and sediment yield of small watersheds.[Conclusions] This paper studied the change of runoff and sediment characteristics and land use change under different time scales, analyzed the sediment status of inter-annual and annual inner diameter flow and fits the sediment correlation equation, which may provide scientific reference for the layout of soil and water conservation measures and the optimization and adjustment of land use type structure in small watershed.

Key words： variation of water and sediment trend analysis accuracy small watershed Three Gorges Reservoir Area

Received: 14 December 2021

PACS:

S157.1

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	XI Hong
	ZHANG Zhilan
	SHI Dongmei
	SI Chengjing
	YANG Jun

Cite this article:

XI Hong,ZHANG Zhilan,SHI Dongmei, et al. Runoff and sediment characteristics and trend analysis of Liujiagou small watershed in the Three Gorges Reservoir Area[J]. SSWC, 2022, 20(4): 1-9.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2022.04.001 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2022/V20/I4/1

[1]	袁静,郜文旺,袁文博.典型对比小流域降水特征及其对径流泥沙的影响:以南小河沟流域为例[J].中国水土保持,2021(9):43.YUAN Jing, HAO Wenwang,YUAN Wenbo.Precipitation characteristics of typical contrast small watershed and its impact on runoff and sediment:A case study of Nanxiaohegou watershed[J].Soil and Water Conservation in China, 2021(9):43.
[2]	刘纪根,任洪玉,牛俊,等.紫色土区小流域侵蚀产沙对水土保持措施的响应[J].水土保持研究,2018,25(2):29.LIU Jigen, REN Hongyu, NIU Jun, et al.Response of erosion and sediment yield to soil and water conservation measures in small watershed in purple soil region[J].Research of Soil and Water Conservation, 2018,25(2):29.
[3]	周添惠,杨磊,赵方凯,等.渭河源流域源汇景观演变对径流泥沙的影响研究[J].生态学报,2022,42(1):58.ZHOU Tianhui, YANG Lei, ZHAO Fangkai, et al.Impacts of source and sink landscape dynamics on runoff and sediment watershed of the Weihe River[J].Acta Ecologica Sinica, 2022,42(1):58.
[4]	李景宗,张永永,赵帮元,等.皇甫川特拉沟小流域近期泥沙减少成因分析[J].人民黄河,2018,40(4):1.LI Jingzong,ZHANG Yongyong,ZHAO Bangyuan,et al.Cause analysis of recent sediment reduction in Telagou Small Watershed of Huangfuchuan Basin[J].Yellow River, 2018,40(4):1.
[5]	姜德文.水土保持强监管目标任务及方法探讨[J].中国水利,2019(1):13.JIANG Dewen.Objective tasks and methodologies for strengthening soil and water conservation monitoring and supervision[J].China Water Resources, 2019(1):13.
[6]	郑江坤,李静苑,秦伟,等.川北紫色土小流域植被建设的水土保持效应[J].农业工程学报,2017,33(2):141.ZHENG Jiangkun,LI Jingyuan, QIN Wei, et al.Effects of vegetation construction on soil and water conservation in small watershed of purplish soil region, northern Sichuan[J].Transactions of the CSAE, 2017,33(2):141.
[7]	李怡颖,范继辉,廖莹.近60年来嘉陵江流域水沙变化特征[J].山地学报,2020,38(3):339.LI Yiying, FAN Jihui, LIAO Ying.Variation characteristics of streamflow and sediment in the Jialing River Basin in the past 60 years, China[J].Mountain Research, 2020,38(3):339.
[8]	廖凯涛,胡建民,宋月君,等.南方红壤丘陵区流域植被景观格局变化及水沙响应关系[J].水土保持学报,2019,33(3):36.LIAO Kaitao, HU Jianmin, SONG Yuejun, et al.Effects of vegetation landscape patterns on runoff and sediment in red soil hilly region of southern China[J].Journal of Soil and Water Conservation, 2019,33(3):36.
[9]	寇馨月,姜学兵,黄俊,等.红壤区小流域次降雨产流产沙因素分析及模型构建[J].水土保持通报,2017,37(6):34.KOU Xinyue, JIANG Xuebing, HUANG Jun, et al.Analysis of factors affecting runoff and sediment yield and its modelling construction in individual rainfall in small watershed of red soil region[J].Bulletin of Soil and Water Conservation, 2017,37(6):34.
[10]	张富,赵传燕,邓居礼,等.祖厉河流域降雨径流泥沙变化特征研究[J].干旱区地理,2018,41(1):74.ZHANG Fu, ZHAO Chuanyan, DENG Ju1i, et al.Change characteristics of the precipitation runoff and sediment discharge in Zulihe River Basin[J].Arid Land Geography, 2018,41(1):74.
[11]	姚文艺,高亚军,张晓华.黄河径流与输沙关系演变及其相关科学问题[J].中国水土保持科学,2020,18(4):1.YAO Wenyi, GAO Yajun, ZHANG Xiaohua.Relationship evolution between runoff and sediment transport in the Yellow River and related scientific issues[J].Science of Soil and Water Conservation,2020,18(4):1.
[12]	冉大川,张志萍,罗全华,等.大理河流域1970-2002年水保措施减洪减沙效益深化分析[J].水土保持研究,2011,18(1):17.RAN Dachuan, ZHANG Zhiping, LUO Quanhua, et al.More comprehensive analysis on benefits of flood and sediment reduction of soil and water conservation measures during1970 to 2002 in Dali River Basin[J].Research of Soil and Water Conservation,2011,18(1):17.
[13]	李智广,赵力毅.小流域输沙模数多年总体状况的描述方法研究[J].水土保持通报,2021,41(4):128.LI Zhiguang, ZHAO Liyi.A study on description methods of sediment transport modulus in small watershed[J].Bulletin of Soil and Water Conservation, 2021,41(4):128.
[14]	彭浩,李忠武,刘春,等.湘中低山丘陵区坡面产流输沙对降雨、土壤类型及水保措施的综合响应特征[J].水土保持学报,2019,33(2):60.PENG Hao, LI Zhongwu, LIU Chun, et al.Comprehensive response characteristics of runoff and sediment yield on rainfall, soil type and water conservation measures in hilly area of central Hunan province[J].Journal of Soil and Water Conservation, 2019,33(2):60.
[15]	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.
[16]	秦瑞杰,陆广勇,安乐平,等.水土保持措施对罗玉沟流域水沙变化的影响[J].中国水土保持,2019(1):19.QIN Ruijie, LU Guangyong, AN Yueping, et al.Effects of soil and water conservation measures on runoff and sediment changes in Luoyugou watershed[J].Soil and Water Conservation in China, 2019(1):19.
[17]	叶晨,张正栋,张杰,等.华南湿热区小流域水沙变化及影响因子分析:以五华河为例[J].长江流域资源与环境,2017,26(7):1083.YE Chen, ZHANG Zhengdong, ZHANG Jie, et al.Analysis of runoff and sediment change and impact factor in the southern humid area river basin:A case study of Wuhua[J].Resources and Environment in the Yangtze Basin, 2017,26(7):1083.
[18]	陈瑾,张佰林,王琨.安家沟流域地面监测数据质量及合理性评价[J].中国水土保持,2018(9):61.CHEN Jin, ZHANG Bailin, WANG Kun.Quality and rationality evaluation of surface monitoring data in Anjiagou watershed[J].Soil and Water Conservation in China, 2018(9):61.
[19]	王淑慧,苏伯儒,王云琦,等.近16年三峡库区径流输沙变化分析[J].中国水土保持科学,2021,19(1):69.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].Science of Soil and Water Conservation,2021,19(1):69.
[20]	张丹丹,王冬梅,汪西林.广西桂林漓江滨岸带植被对地表产流产沙的影响[J].中国水土保持科学,2016,14(2):81.ZHANG Dandan,WANG Dongmei,WANG Xilin.Influence of riparian vegetation on surface runoff and sediment in Li River of Guilin city[J].Science of Soil and Water Conservation,2016,14(2):81.
[21]	朱楠,马超,王云琦,等.基于SWAT模型的不同土地利用结构对流域水沙的影响[J].中国水土保持科学,2016,14(4):105.ZHU Nan, MA Chao, WANG Yunqi, et al.Effects of varied land use structures on runoff-sediment yield based on SWAT model[J].Science of Soil and Water Conservation,2016,14(4):105.