作　　者： (赵晨宇）; (王应祥）; (温珍珠）; (胡广录）; (陈宏祥）;

机构地区： 兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处： 《水资源与水工程学报》 2017年第3期36-41,共6页

摘　　要： 基于平凉水文站(1974-2015年)径流量、温度、降水量和崆峒水库水文站(1977-2015年)径流量资料,应用多种统计分析方法,对泾河平凉市区段径流量年内分配的不均匀性和径流量的年际变化进行了分析,同时对影响径流量变化的因素进行了讨论。结果表明:泾河平凉市区段径流量年内变化呈现不均匀分配,但不均匀性有减小的趋势;泾河平凉市区段径流量年际变化较大,枯水年明显多于丰水年,径流量总体呈现出减小的趋势;影响泾河平凉市区段径流量变化的因素主要为上游崆峒水库站年径流量,人为活动对泾河平凉市区段径流量的影响主要在1993年以后:1994-2009年起到减小的作用,2010-2015年起到增大的作用。 Based on the runoff, temperature and precipitation data from Pingliang Hydrologic Station （1974-2015） and runoff data from Kongtong Reservoir Hydrologic Station （1977-2015）, this paper used the multiple statistical methods to analyze the annual distribution and interannual variation of runoff, as well as the influencing factors.The results show that： the annual distribution is uneven in Pingliang reach of Jinghe river, but it has a tendency to decrease;the runoff interannual variation changes a lot and shows a decreasing trend.Besides, the low flow years are more than high flow years in Pingliang reach of Jinghe river;The runoff of Kongtong Reservoir Hydrologic Station has the most important impact on the runoff of Pingliang Hydrologic Station.The influence of human factors on the runoff of Pingliang reach of Jinghe River is mainly after 1993.The human factors has a reducing effect in 1994-2009 and increasing effect in 2010-2015 on the runoff of Pingliang reach of Jinghe river.

关 键 词： 径流量 年内分配 年际变化 影响因素 泾河 平凉市