[1]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,(3):339-348.[doi:10.16089/j.cnki.1008-2786.000514]
　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,(3):339-348.[doi:10.16089/j.cnki.1008-2786.000514]
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近60年来嘉陵江流域水沙变化特征()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2020年第3期
页码:
339-348
栏目:
山地环境
出版日期:
2020-07-20

文章信息/Info

Title:
Variation Characteristics of Streamflow and Sediment in the Jialing River Basin in the Past 60 Years, China
文章编号:
1008-2786-(2020)3-339-10
作者:
李怡颖1; 2; 范继辉1*; 廖 莹1; 2
1.中国科学院、水利部成都山地灾害与环境研究所 山地表生过程与生态调控重点实验室,成都610041; 2.中国科学院大学,北京100049
Author(s):
LI Yiying1; 2;  FAN Jihui1*;  LIAO Ying1; 2
1. Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
径流量;  输沙量;  变化特征;  影响因素;  嘉陵江
Keywords:
runoff;  sediment yield;  variation characteristics;  influencing factors;  Jialing River
分类号:
P333.4
DOI:
10.16089/j.cnki.1008-2786.000514
文献标志码:
A
摘要:
嘉陵江是长江上游流量较大的一条支流,也是三峡水库重要的泥沙来源地,近年来,流域内产流产沙规律均发生了显著变化。本文基于Spearman相关分析、Mann-Kendall检验等方法,分析了北碚站1954—2017年间径流、泥沙序列变化特征,并结合气象要素、人类活动情况等讨论了主要影响因素。结果表明:(1)近60年来嘉陵江流域径流量呈微弱下降趋势,而输沙量呈大幅度下降趋势,近几年来的输沙量延续了前50年的下降趋势;(2)径流量分别在1967年和1985年发生突变,输沙量在1968年发生突变(p<0.05);(3)降水主要影响嘉陵江流域径流量变化,而生态工程建设、水利工程运行等人类活动是输沙量减少的主要因素,在减沙贡献中,水利工程的减沙效益大于生态工程。本文的研究结果对于防洪、河道整治和河流管理具有指导意义。
Abstract:
Jialing River is a major tributary in the upper reaches of the Yangtze River, which is an important sediment source for the Three Gorges Reservoir. The processes of runoff and sediment yield changed significantly over the past years in the Jialing River Basin. Base on Spearman correlation analysis and the Mann-Kendall test, the hydrology data of Beibei Station from 1954 to 2017 were used to study the variation characteristics of runoff and sediment yield, and the major influencing factors were also discussed. The results showed that:(1)There was a slightly decreasing tendency in annual runoff in the past 60 years, while the descending trend in sediment yield was significantly;(2)1967 and 1985 were the two catastrophe points of runoff, and 1968 was the catastrophe point at which the sediment yield begins a downward tendency(p<0.05);(3)The decrease of runoff was mainly caused by precipitation in the Jialing River Basin, while the human activities were the dominant factors for sediment yield reduction. The main factor to sediment yield decreasing in the Jialing River Basin was sediment trapping by reservoirs, and the second contribution was water-soil conservation practices. The study results are of great guiding significance for flood control, river regulation and river management.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期(Received date):2019-08-28; 改回日期(Accepted date):2020-05-14
基金项目(Foundation item):中科院山地所“一三五”重点培育方向性项目(SDS-135-1702); 国家自然科学基金项目(41871072)。[The 135 Strategic Program of the IMHE, CAS(SDS-135-1702); National Natural Science Foundation of China(41871072)]
作者简介(Biography):李怡颖(1996-),女,云南曲靖人,硕士生,主要研究方向:生态水文水资源。[LI Yiying(1996-), female, born in Qujing, Yunnan province, M.Sc. candidate, research on ecological hydrology and water resources] E-mail:liyiiying18@mails.ucas.ac.cn
*通讯作者(Corresponding author):范继辉(1980-),男,河南开封人,博士,副研究员,主要研究方向:生态水文学和水文水资源。[FAN Jihui(1980-), male, born in Kaifeng, Henan province, Ph.D., associate professor, research on ecological hydrology and water resource] E-mail: jhfan@imde.ac.cn
更新日期/Last Update: 2020-05-30