干旱区生态环境知识资源中心(Arid): 天山中段南北坡典型流域基流及其影响因素

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	天山中段南北坡典型流域基流及其影响因素
其他题名	Baseflow and Its Affecting Factors of the Typical Alpine Watersheds in the North and South Slopes of the Central Tianshan Mountains
	李倩 1; 李兰海 2; 尚明 2; 郭玲鹏 2; 张飞云 2
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:1 页码:29-34
中文摘要	采用滤波估算方法,对位于天山中段南北坡的开都河与玛纳斯河流域19582007年50 a的实测日径流资料进行基流分割,分析两流域基流变化特征。并利用两流域气象资料,分析气温和降水对两流域基流的影响。结果表明:两流域基流50 a来比较稳定,呈微弱的上升趋势。气温和降水在春季、夏季和秋季对两流域基流影响较为显著。气温对春季和秋季两流域基流影响均大于降水。气温和降水是开都河与玛纳斯河流域基流的重要影响因子,以雪冰融水为主要补给源的河流,气温是流域基流的决定性影响因素。
英文摘要	Baseflow,composed of both groundwater discharge and land surface runoff,is an important component of streamflow,especially in arid areas.Baseflow accounts for a large proportion of streamflow and consists the entire flow in dry season.Analyzing baseflow is critical for water security,water resources assessment and investigation, water redistribution,and hydrologic modeling.The Kaidu River and the Manas River are two typical alpine rivers in arid area,which are primarily supplied by snowmelt and glacier-melt water from the Tianshan Mountains.The purpose of this study is to assess the change of baseflow and analyze the effects of meteorological factors on baseflow.Based on the flow records from 1958 to 2007 measured at Dashankou and Kensiwate hydrological stations,the baseflow was separated by using the digital filter method.The result showed that during 1958 - 2007,the baseflow of both river basins as well as the baseflow index (BFI) was slightly increased.A baseflow of 367.7 m~3 was produced from each square kilometer of land area in the Kaidu River Basin in average,and of 449.2 m~3 in the Manas River Basin.The effects of meteorological factors on baseflow were different in different seasons.Temperature affected significantly the baseflow of both river basins in all seasons,but except winter for precipitation.In spring and autumn, the correlation between temperature and baseflow was higher than that between precipitation and baseflow in both river basins.The correlation coefficients between temperature and baseflow were 0.759 and 0.753 in spring and autumn for the Kaidu River Basin,and 0.763 and 0.851 for the Manas River Basin,respectively.The results implied that the effect of temperature on baseflow was higher than that of precipitation in spring and autumn in both river basins,but baseflow was more sensitive to precipitation in summer than that in other three seasons.Therefore, temperature and precipitation are two important factors,and their importance to baseflow varies with seasons.In the drainage basins in arid area where snowmelt and glacier-melt water serve as the main water sourcea,temperature plays a leading role in the effects on baseflow in spring and autumn,and precipitation is a main affwcting factor on baseflow in summer.
中文关键词	开都河 ; 玛纳斯河 ; 日径流量 ; 基流 ; 滤波估算法 ; 气温 ; 降水 ; 天山中段
英文关键词	the Kaidu River the Manasi River streamflow baseflow digital filter method temperature precipitation Central Tianshan Mountains
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5354753
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232697
作者单位	1.乌鲁木齐气象卫星地面站, 乌鲁木齐, 新疆 830011, 中国; 2.中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室;;新疆干旱区水循环与水利用重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	李倩,李兰海,尚明,等. 天山中段南北坡典型流域基流及其影响因素[J]. 中国科学院新疆生态与地理研究所,2015,32(1):29-34.
APA	李倩,李兰海,尚明,郭玲鹏,&张飞云.(2015).天山中段南北坡典型流域基流及其影响因素.干旱区研究,32(1),29-34.
MLA	李倩,et al."天山中段南北坡典型流域基流及其影响因素".干旱区研究 32.1(2015):29-34.