干旱区生态环境知识资源中心(Arid): 黄河头道拐站水沙来源空间分布及其影响因素

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	黄河头道拐站水沙来源空间分布及其影响因素
其他题名	Spatial distribution of water and sediment sources and its influence factors at Toudaoguai hydrological station on the Yellow River
	冉大川; 姚文艺; 张攀; 申震洲
来源期刊	泥沙研究
ISSN	0468-155X
出版年	2015
期号	1 页码:42-48
中文摘要	根据1950 - 2010年实测资料,采用不同时间序列对比和回归分析方法,对黄河上游沙漠宽谷河段干流6大水文站水沙关系变化、出口控制站头道拐水文站水沙来源的空间分布及其影响因素进行了分析,结果表明:①头道拐水文站径流主要来自兰州以上地区,泥沙主要来自兰州- 头道拐区间支流。与基准期的1950 - 1968年相比,头道拐站1969 - 1986年和1987 - 2010年平均径流量分别减少10. 1% 和40. 6%,年平均输沙量分别减少37. 2%和75. 4%。②宁蒙河段径流量减少主要发生在石嘴山- 巴彦高勒河段,多年平均径流量减少52. 2亿m~3; 输沙量减少主要发生在青铜峡- 巴彦高勒河段,多年平均输沙量减少0. 244亿t。宁蒙河段单位水量冲淤量随着头道拐水文站年平均来沙系数的增大有增大趋势,河道冲淤基本平衡的来沙系数约为0. 0023kg·s /m~6。影响头道拐水文站水沙来源空间分布的主要因素有气候波动、龙羊峡和刘家峡水库调节、工农业用水、水土保持综合治理等。
英文摘要	According to the observed data during 1950 - 2010,the authors analyzed water and sediment relationship of 6 major hydrological stations of the valley in the desert on the upper reach of the Yellow River,the water and sediment source spatial distribution,and its influence factors at the Toudaoguai hydrological station. The results show that: ①The runoff of Toudaoguai hydrological station mainly come from the area above Lanzhou,and the sediment mainly from Lanzhou to Toudaoguai section tributaries. Compared with the ference period from 1950 to 1968,the average runoff of Toudaoguai station from 1969 to 1986 and 1987 to 2010 were reduced by 10. 1% and 40. 6%,and the average annual sediment decreased by 37. 2% and 75. 4% respectively. ②The runoff reduction of Ning-Meng reach mainly occurred in Shizuishan to Bayangol River,to reduce the average annual runoff of 5220 million cubic meters. The sediment reduction of Ning-Meng reach mainly occurred in Qingtongxia to Bayangol River,in which the average annual sediment decreased by 24. 4 million tons. There is an increasing trend of unit water sedimentation with the increase of the average annual sediment coefficient at Toudaoguai hydrological station in Ning-Meng reach. The basic balance incoming sediment coefficient is about 0. 0023kg·s /m~6. Climatic fluctuations,the Longyangxia and liujiaxia reservoirs adjusting,industrial and agricultural water use,comprehensive management of soil and water conservation re the main factors that influence the spatial distribution of water and sediment source at Toudaoguai hydrological station.
中文关键词	水沙关系变化 ; 驱动因子 ; 贡献率 ; 头道拐站
英文关键词	changes in water and sediment relationship driving factors contribution rate Toudaoguai hydrological station
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING MULTIDISCIPLINARY
WOS研究方向	Engineering
CSCD记录号	CSCD:5563005
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233011
作者单位	黄河水利委员会黄河水利科学研究院, 郑州, 河南 450003, 中国
推荐引用方式 GB/T 7714	冉大川,姚文艺,张攀,等. 黄河头道拐站水沙来源空间分布及其影响因素[J],2015(1):42-48.
APA	冉大川,姚文艺,张攀,&申震洲.(2015).黄河头道拐站水沙来源空间分布及其影响因素.泥沙研究(1),42-48.
MLA	冉大川,et al."黄河头道拐站水沙来源空间分布及其影响因素".泥沙研究 .1(2015):42-48.