引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 82次   下载 65 本文二维码信息
码上扫一扫!
分享到: 微信 更多
近55年来降水及人类活动对沅水流域径流的影响
臧荣强1,2, 胡国华1,2, 顾庆福3, 邵全喜1,4, 盛丰1,2, 周慧3
1.长沙理工大学 水利工程学院, 湖南 长沙 410114;2.水沙科学与水灾害防治湖南省重点实验室, 湖南 长沙 410114;3.湖南省水文水资源勘测局, 湖南 长沙 410007;4.澳大利亚国家数据研究所, 澳大利亚 佛意特 WA6014
摘要:
[目的]开展降水和人类活动对沅水流域径流影响的定量研究及其成因分析,为该流域水资源开发利用提供科学依据。[方法]采用累计距平法以及滑动t检验法对沅水流域近55 a的降水量、径流量序列进行趋势分析和突变检验,采用双累积曲线法分别计算降水及人类活动对沅水流域径流量变化的贡献率。[结果]除安江站受人类活动影响较明显,其贡献量为60%外,在变异期Ⅰ(1989-2003年),降水对流域径流的影响量大于人类活动的贡献率;在变异期Ⅱ(2004-2014年),人类活动的贡献率大幅增加并逐步成为径流变化的主要驱动因素。[结论]近55 a来,人类活动因素对沅水流域径流量的影响不断增加,沅水流域下游受人类活动的影响贡献率的增幅最大。
关键词:  径流量变化  气候变化  降水量  人类活动  沅水流域
DOI:10.13961/j.cnki.stbctb.2019.04.015
分类号:P333;TV121.1
基金项目:国家自然科学基金项目"再生水灌溉条件下农田土壤优先流的演化过程与驱动机理研究"(51579020);国家自然科学基金青年项目"区域非一致性水文频率分析方法研究与应用"(51809018);湖南省重大水利科技计划项目(2013-243-2)
Impact of Precipitation and Human Activities on Runoff in Yuanshui River Basin in Recent 55 Years
Zang Rongqiang1,2, Hu Guohua1,2, Gu Qingfu3, Shao Quanxi1,4, Sheng Feng1,2, Zhou Hui3
1.School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, Hu'nan 410114, China;2.Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hu'nan Province, Changsha, Hu'nan 410114, China;3.Hu'nan Province Hydrology and Water Resources Survey Bureau, Changsha, Hu'nan 410007, China;4.CSIRO Mathematical and Information Sciences, Leeuwin Centre, WA6014 Floreat Park, Australia
Abstract:
[Objective] The impacts of precipitation and human activities on runoff in Yuanshui River Basin and its cause were studied in order to provide scientific basis for the water utilization of Yuanshui River basin.[Methods] By using cumulative anomaly method and sliding t test, the trend and mutation test of precipitation and runoff series in recent 55 years in Yuanshui basin were carried out. The contribution rate of precipitation and human activities to runoff change in Yuanshui River basin was calculated by double cumulative curve method.[Results] In addition to Anjiang Station, which was obviously influenced by human activities, its contribution was 60%. In the period of variation Ⅰ(1989-2003), precipitation had greater impact on runoff than the contribution rate of human activities. In the period of variation Ⅱ(2004-2014), the contribution rate of human activities increased significantly and gradually became the main driving factor of runoff change.[Conclusion] In recent 55 years, the influence of human activities on runoff in the Yuanshui River basin had been increasing. The contribution rate of human activities in the lower reaches of the Yuan River basin had increased the most.
Key words:  runoff change  climate change  precipitation  human activities  Yuanshui River basin