中线调水对汉江中下游区水文情势影响研究  

Impacts of Water Diversion of Middle--Route Project on Hydrological Regimes of Middle and Lower Reaches of Hanjiang River

作　　者：张怡雅 袁飞[1] 张利敏 谢子琪 ZHANG Yiya;YUAN Fei;ZHANG Limin;XIE Ziqi(College of Hydrology and Water Resources,Hohai Uniersity,Nanjing 210098,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210098

出　　处：《水文》2022年第3期89-94,66,共7页Journal of China Hydrology

基　　金：国家重点研发计划资助项目(2019YFC0409000);国家自然科学基金资助项目(51779070)。

摘　　要：2014年南水北调中线工程正式通水,汉江中下游区水文情势发生显著变化。定量评估汉江中下游区水文情势变化特征,可为此区域水资源可持续开发利用提供科学依据。以黄家港、皇庄、仙桃站1987-2019年流量和水位数据,采用距平分析法、Mann-Kendall趋势检验法以及Yamamoto突变检验法对年、月尺度流量和水位序列进行分析,并采用水文变化指标法分析中线调水前后水文特征值变化。结果显示:调水后汉江中下游区典型站年径流量和年水位均较调水前呈下降趋势;各水文特征值均发生较为显著变化,各站点月平均流量和水位、年极端流量和水位总体低于调水前;调水后径流年内分配趋于均匀化。表明南水北调中线调水工程对汉江中下游流量和水位产生了显著影响。In 2014, the South-to-North Water Diversion Middle-route Project was officially in operation, which might significantly change the hydrological regime of the middle and lower reaches of Hanjiang river. Quantitative evaluation of hydrological regime change in middle and lower reaches of the Hanjiang River could provide a scientific basis for sustainable development and utilization of regional water resources. Based on the discharge and water level data at the Huangjiagang, Huang Zhuang, and Xiantao hydrological stations from 1987 to 2019. The anomaly analysis, Mann-Kendall test, and Yamamoto method were used to analyze discharge and water level time series on annual and monthly scales. The index of hydrological alterations was used to analyze the change of hydrological characteristics before and after water diversion. The results show that after water diversion, the annual discharge and water level of typical stations in middle and lower reaches of the Hanjiang River demonstrated a decrease trend in comparison with those before water diversion. The values of various hydrological characteristics tended to significantly change. In general, the monthly average discharge and water level and annual extreme discharge and water level at each station were lower than those before water diversion. The seasonal runoff distribution of tended to be more uniform after water diversion. It reveals that the South-to-North Water Diversion Middle-route Project has significantly affected on the discharge and water level in middle and lower reaches of the Hanjiang River.

关 键 词：南水北调中线工程 调水 汉江中下游 水文情势 

分 类 号：P339[天文地球—水文科学]