ISWC OpenIR  > 水保所知识产出(1956---)
近 55 年来渭河流域输沙变化及驱动因子分析
白云鹏1; 赵广举1,2; 张丽梅1; 穆兴民1,2; 高鹏1,2
2020
Source Publication水土保持学报
Volume34Issue:4Pages:91-97
Abstract

根据渭河流域水文站点分布特征,将流域划分为15个子流域,结合1961 — 2015年输沙资料和气象
站日降雨量资料,采用 Mann — Kendall检验、双累积曲线、相关性分析及偏最小二乘回归等方法,定量分析
渭河流域输沙时空变化特征及其主控因子。结果表明:渭河流域 1961 — 2015 年输沙量呈显著减少趋势,
渭河干流咸阳站、北洛河状头站和泾河张家山站年输沙量分别以0. 039 0 , 0. 017 4 , 0. 041 4亿t / a的速率减
少。 15 个水文站中,北洛河的张村驿站年输沙量呈显著增加趋势(
P <0. 05 ),洪德、雨落坪和庆阳站呈不显
著减小趋势,其余各站的输沙均显著减小( P <0.
05 )。主要通过对输沙驱动因子和渭河流域输沙模数 2 个
方面进行纵横方向上的综合分析对比,最终得到的相关数据结果表现出渭河输沙变化与降雨集中度指数、
植被覆盖指数、草地面积比例、最小高程、平均坡度等因子具有良好的相关关系( R 2 >0.
7 )。

Other Abstract

In recent years , sediment load in many rivers around the world has undergone significant changes ,
which may greatly affect ecological environment and economic development of the basin.Exploring
the
evolution of sediment load in the Weihe River will provide a theoretical basis for the comprehensive management of
the Weihe River Basin and the regulation of water and sediment relations.This study attempted to investigate
the spatial and temporal variation of sediment load in 15hydrological stations in the Weihe River basin during
the period of 1961-2015.The results showed that the average sediment load in the Weihe River Basin from
1961to 2015showed a significantly decreasingtrend.The annual sediment load atXianyang , Zhuangtou and
Zhangjiashan stations decreased at a rate of 0. 039 0billion t / a , 0. 017 4billion t / a , and 0. 041 4billion t / a ,
respectively.Among the 15hydrological stations
, the annual sediment load atZhangcunyistation showed a
significant increasing trend , while Hongde , Yuluoping and Qingyang
stations showed no significant
decreasing trend , and the remaining
stations showed significant decreasing trends ( P <0.
05 ) .Both correlation
analysis and partial least squares regression were applied to quantify the relationship between sediment load
and potential driving factors.The sediment loadhad good correlations with the Precipitation Concentration
Index , Vegetation Coverage Index , Grassland Area Ratio , Minimum Elevation , and Average Slope.

Keyword渭河流域 输沙模数 主控因素 输沙—驱动因子关系模型
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/10043
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所,黄土高原土壤侵蚀与旱地农业国家重点实验室
2.中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
白云鹏,赵广举,张丽梅,等. 近 55 年来渭河流域输沙变化及驱动因子分析[J]. 水土保持学报,2020,34(4):91-97.
APA 白云鹏,赵广举,张丽梅,穆兴民,&高鹏.(2020).近 55 年来渭河流域输沙变化及驱动因子分析.水土保持学报,34(4),91-97.
MLA 白云鹏,et al."近 55 年来渭河流域输沙变化及驱动因子分析".水土保持学报 34.4(2020):91-97.
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