摘要
西营河是石羊河流域最大的一级支流,九条岭水文站是西营河流域主要控制站,根据九条岭水文站1972—2020年实测径流资料,计算分析其径流特性及变化趋势,通过长短系列统计参数对比、差积曲线、累积平均等分析方法评价径流资料系列的代表性,并对九条岭水文站设计年径流及其年内分配进行了计算与分析。结果表明:九条岭水文站径流年内分配不均,主要集中在5—9月,年径流长期变化呈微弱增长趋势,径流系列丰枯交替变化明显,整个系列具有完整的丰、平、枯周期,具有较好的代表性,设计年径流成果合理可靠,可以作为西营河流域径流情势,对流域管理部门提前制定水量调度计划、做好流域水资源开发利用和流域生态治理规划、促进区域可持续发展具有重要参考价值和意义。
The Xiying River is the largest primary tributary of the Shiyang River Basin,and the Jiutiaoling Hydrologic Station is the main control station of the Xiying River Basin.Based on the measured runoff data of the Jiutiaoling Hydrological Station from 1972 to 2020,the runoff characteristics and fluctuation trends are calculated and analyzed.The representativeness of the runoff data series is evaluated through analysis methods such as long and short series statistical parameter comparison,difference curve,and cumulative average,and the design annual runoff and its annual distribution of Jiutiaoling Hydrologic Station are calculated and analyzed.The results show that the annual distribution of runoff at Jiutiaoling Hydrologic Station is uneven,mainly concentrated from May to September.The long-term variation of annual runoff shows a weak growth trend,and the alternating changes between abundant and dry periods are obvious.The entire series has a complete period of abundant,flat,and dry periods,with good representativeness.The designed annual runoff results are reasonable and reliable,and can be used as the runoff situation in the Xiying River Basin.It is of great reference value and significance for the river authority to formulate water volume scheduling in advance,to carry out planning for the development and utilization of water resources and ecological governance in the river basin,and to promote regional sustainable development.
作者
王晴玉
武金慧
何洋
徐俊
张璇
WANG Qingyu;WU Jinhui;HE Yang;XU Jun;ZHANG xuan(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China)
出处
《西北水电》
2023年第5期26-30,53,共6页
Northwest Hydropower
关键词
西营河
九条岭水文站
径流特性
代表性分析
设计径流
Xiying River
Jiutiaoling Hydrologic Station
runoff characteristics
representativeness analysis
design runoff
