水土保持通报2017，Vol.37Issue(2)：115-119,125,6.DOI:10.13961/j.cnki.stbctb.2017.02.016
1963-2014年呼伦湖流域降水对径流量变化的影响
Impacts of Precipitation on Runoff Yield of Hulun Lake Basin During 1963-2014
摘要
Abstract
[Objective] The effect of precipitation on runoff sequence of Hulun Lake during 1963-2014 was analyzed to provide reference for sustainable utilization and efficient configuration of river basin water resources.[Methods] Based on the observed data of Hulu Lake Station during 1963-2014,we used the methods of cumulative anomaly and Mann-Kendall to illustrate the change trend of precipitation and runoff and to demonstrate change ratio of cumulative quantity slope.We calculated quantitatively the contribution rate of the precipitation and human activities on runoff.[Results] Two inflection points occurred in 1972 and 1999.According to the two points,the cumulating process of the variables was divided into three periods,1963-1972(T1),1973-1999 (T2) and 2000-2014(T3).Taking T1 as the base referred period,the contribution rates of the precipitation to the decrease of runoff were 0 in T2,and 40.7％ in T3.[Conclusion] Since the twenty-first century,the precipitation and runoff were obviously less.Annual runoff and precipitation had a good linear correlation.And the precipitation reduction was the main reason for the decrease of runoff.In recent years,population increased and animal husbandry development have their certain influence yet.关键词
降水/径流/呼伦湖流域/贡献率Key words
runoff/precipitation/contribution rate/Hulun Lake basin分类
建筑与水利引用本文复制引用
王静洁,李畅游,孙标,樊才睿,梁丽娥,韩知明..1963-2014年呼伦湖流域降水对径流量变化的影响[J].水土保持通报,2017,37(2):115-119,125,6.基金项目
国家自然科学基金项目“冻融过程中湖泊污染物多介质迁移转化规律及机制研究”(51339002),基于3S技术的呼伦湖水环境演化及湿地生态响应机制研究(51409288) （51339002）
内蒙古农业大学优秀青年科学基金项目(2014XYQ-10) （2014XYQ-10）
