华北水利水电大学学报（自然科学版）2017，Vol.38Issue(1)：30-35,6.DOI:10.3969/j.issn.1002-5634.2017.01.007
贵州省径流变化特征分析
Analysis of Runoff Variation Characteristics in Guizhou Province
摘要
Abstract
The characteristics of runoff distribution are the basis of water resources evaluation.They are often used as one of the important indexes of water planning,hydrological regionalization and agricultural zoning,and also an important indicator of river type classification.Studying the characteristics of the runoff distribution and its evolution is of great significance to the rational exploitation and comprehensive utilization of water resources.The runoff statistics of six typical hydrological stations in Guizhou Province from 1985 to 2012 were selected to measure the annual and interannual variability of annual runoff in Guizhou Province by using the annual distribution ratio,the annual heterogeneity coefficient,the concentration degree,the concentration period,the variation range,the interannual anomaly and the coefficient of the runoff modulus,the coefficient of variation and the ratio of the annual extreme value and other indicators.The results show that the six typical hydrological stations in Guizhou have obvious synchrony.The distribution heterogeneity of the typical runoff increased and then decreased from non-uniform to relatively uniform.The annual concentration of runoff increased first and then decreased.The annual runoff concentration in each station is mainly concentrated in July.From the time distribution,the interannual fluctuation of runoff has little change,and the whole trend of the change is the first increase and then the decrease.In terms of spatial distribution,runoff in the southern region varies greatly while that in the northern region is relatively stable.Through the analysis of runoff characteristics,it can provide scientific basis for reasonable development,comprehensive utilization and optimal allocation of water resources.关键词
径流量/变化特征/贵州省/年内变化/年际变化Key words
runoff/changing characteristics/Guizhou Province/annual variation/interannual variation分类
建筑与水利引用本文复制引用
徐建新,张伟杰,赵尚飞,王新..贵州省径流变化特征分析[J].华北水利水电大学学报（自然科学版）,2017,38(1):30-35,6.基金项目
甘肃省科技支撑计划(144NKCD238) （144NKCD238）
贵州省水利厅科技专项经费资助项目(KT201313) （KT201313）
华北水利水电大学研究生教育创新课题计划(YK2016-12). （YK2016-12）
