北京师范大学学报（自然科学版）2016，Vol.52Issue(3)：328-332,5.DOI:10.16360/j.cnki.jbnuns.2016.03.013
祁连山北部流域水文相似性与出山径流总量的估计
Hydrological similarity among catchments and estimation of the total runoff in the North Qilian Mountain,China
摘要
Abstract
The runoff in river basins of the North Qilian Mountain controls water resources in the Hexi Corridor,China.The rainfall-runoff processes in large river basins have been well observed and investigated, whereas observations in small river basins are limited.Therefore,there are uncertainties in estimation of total runoff in the North Qilian Mountain.Hydrological and meteorological data in the Shule River,Heihe River and Shiyang River basins are used to analyze similarity in rainfall-runoff relationship among different river basins according to a statistical model.It was found that streamflow increased nonlinearly with increase in basin area, evapotranspiration ratio decreased with increase in aridity index.Runoff seems only dependent on average precipitation due to altitude effect on rainfall.An approximate formula for runoff versus precipitation was used to estimate total runoff in the North Qilian Mountain,a value of (72.3~84.3)×108 m3·a-1 .The estimated runoff in Heihe River and Shiyang River basins are greater than previously estimated.Evapotranspiration in Shule River basin is significant,the formula need to be corrected.Hydrological similarity among different basins is helpful to reduce negative impacts of limitations in hydrological and meteorological data.关键词
降水/蒸散/产流/高程效应/黑河Key words
precipitation/evapotranspiration/runoff/altitude effect/Heihe River分类
建筑与水利引用本文复制引用
王旭升..祁连山北部流域水文相似性与出山径流总量的估计[J].北京师范大学学报（自然科学版）,2016,52(3):328-332,5.基金项目
教育部新世纪人才计划资助项目(NCET-12-0949) （NCET-12-0949）
