基于IHA-RVA法的资水流域水文情势评估
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摘要
为了研究资水流域水文情势的变化,选取桃江水文站1959—2016年的逐日流量数据为研究资料,采用Mann-Kendall检验法、累积距平法和滑动T检验法进行流量特征分析,并应用生态水文指标变化范围法(IHA-RVA)以及水文改变度法综合评价了资水流域的水文情势改变程度。结果表明:资水流域桃江水文站的年均流量呈略微上升趋势,突变年份出现在1987年。通过对资水流域水文突变前后桃江水文站水文指标的分析可知:资水流域整体的水文改变度为22%,仅达到低度改变;32个IHA水文指标中,年最小值流量出现时间受影响最大。该研究可为资水流域生态水文情势的健康、可持续发展提供基础参考。
In order to study the changes of hydrological regime in Zishui River basin, the daily flow data of the Taojiang hydrological station(1959-2016) were selected, and the flow characteristics were analyzed by Mann-Kendall method, cumulative anomaly method and sliding T test, as well as the water resources change range method(IHA-RVA) and the method of degree of hydrologic alteration were used to evaluate the degree of changes in the hydrological regime of the Zishui River basin. The results show that the average annual flow of the Taojiang hydrological station in the Zishui River hydrological control station is flat, and the change trend is not obvious. The mutation year appears in 1987. Through the analysis of 32 hydrological indicators of the Taojiang hydrological station before and after the hydrological mutation in Zishui basin, the degree of overall changes of Taojiang hydrological station is 22%, only reaching the low degree of changes, of which the occurrence time of the annual minimum is strongly affected. This study can provide a basic reference for the healthy and sustainable development of hydrological regime in Zishui basin.
In order to study the changes of hydrological regime in Zishui River basin, the daily flow data of the Taojiang hydrological station(1959-2016) were selected, and the flow characteristics were analyzed by Mann-Kendall method, cumulative anomaly method and sliding T test, as well as the water resources change range method(IHA-RVA) and the method of degree of hydrologic alteration were used to evaluate the degree of changes in the hydrological regime of the Zishui River basin. The results show that the average annual flow of the Taojiang hydrological station in the Zishui River hydrological control station is flat, and the change trend is not obvious. The mutation year appears in 1987. Through the analysis of 32 hydrological indicators of the Taojiang hydrological station before and after the hydrological mutation in Zishui basin, the degree of overall changes of Taojiang hydrological station is 22%, only reaching the low degree of changes, of which the occurrence time of the annual minimum is strongly affected. This study can provide a basic reference for the healthy and sustainable development of hydrological regime in Zishui basin.
引文
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[2] 王学雷,姜刘志.三峡工程蓄水前后长江中下游环境流特征变化研究[J].华中师范大学学报(自然科学版),2015,49(5):797-804.
[3] 陈栋为,陈晓宏,李翀,等.基于RAV法的水利工程对河流水文情势改变的累积效应研究:以东江流域为例[J].水文,2011,31(2):54-57.
[4] 陈启慧,郝振纯,夏自强,等.葛洲坝对长江径流过程的影响[J].长江流域资源与环境,2006,15(4):522-526.
[5] 郭文献,夏自强,王乾.丹江口水库对汉江中下游水文情势的影响[J].河海大学学报(自然科学版),2008,36(6):733-737.
[6] YANG Z F,YAN Y,LIU Q.Assessment of the flow regime alterations in the lower Yellow River,China[J].Ecological informatics,2012,10:56-64.
[7] ZHANG Q,XIAO M Z,LIU C L,et al.Reservoir-induced hydrological alterations and ecological instream flow in the East River,the Pearl River basin,China[J].Stochastic environmental research and risk assessment,2014,28(8):2119-2131.
[8] 班璇,姜刘志,曾小辉,等.三峡水库蓄水后长江中游水沙时空变化的定量评估[J].水科学进展,2014,25(5):650-657.
[9] 章诞武,丛振涛,倪广恒.基于中国气象资料的趋势检验方法对比分析[J].水科学进展,2013,24(4):490-496.
[10] 于志强,张乃鹏.基于季节性Kendall检验法的供水水源地水质变化趋势分析[J].水利规划与设计,2018(10):94-98.
[11] 李景保,罗中海,叶亚亚,等.三峡水库运行对长江荆南三口水文和生态的影响[J].应用生态学报,2016,27(4):1285-1293.
[12] 吕琳莉,李朝霞.雅鲁藏布江中下游径流变异性识别[J].水力发电,2013,39(5):13-15.
[13] 王随继,闫云霞,颜明,等.皇甫川流域降水和人类活动对径流量变化的贡献率分析:累积量斜率变化率比较方法的提出及应用[J].地理学报,2012,67(3):388-396.
[14] RICHTER B D,BAUMGARTNER J V,WIGINGTON R,et al.How much water does a river need[J].Freshwater biology,1997,37:231-249.
[15] 王艳芳.三峡工程对下游河流生态水文影响评估研究[D].郑州:华北水利水电大学,2016.
[16] RICHTER B D,BAUMGARTNER J V,BRAUN D P,et al.A spatial assessment of hydrologic alteration within a river network[J].Regulated river:research and management,1998,14(4):329-340.
[17] 罗志勇,杨炳良,管晓祥,等.不同水文模型在金溪流域的模拟与适应性研究[J].华北水利水电大学学报(自然科学版),2018,39(3):6-12.
[18] 李紫妍,刘登峰,黄强,等.基于多种水文学方法的汉江子午河生态流量研究[J].华北水利水电大学学报(自然科学版),2017,38(1):8-12.
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