Changes in the long-term hydrological regimes and the impacts of human activities in the main Wei River, China
Changes in the long-term hydrological regimes and the impacts of human activities in the main Wei River, China
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渭河干流长期水文情势变化及人类活动影响
DOI：
10.1080/02626667.2015.1027708
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发表时间：
2016-03
影响因子：
3.5
通讯作者：
Yu Qijun
中科院分区：
文献类型：
--
作者：
Zhang Hongbo;Huang Qiang;Zhang Qiang;Gu Lei;Chen Keyu;Yu Qijun
摘要近年来，在气候变化和人类活动的共同影响下，渭河流域水文情势发生了显著变化，导致了渭河流域淡水资源短缺、水质污染、洪涝灾害和河道淤积等问题。因此，水文情势变化和潜在的人为影响已引起当地政府和水文学家越来越多的关注。本文通过分析渭河干流4个水文站的历史年、季径流资料，研究了渭河干流4个水文站的天然径流序列和实测径流序列的水文情势变化，并量化了其长期变化特征。连续小波变换、互小波、小波相干、无趋势预白化Mann-Kendall检验和去趋势波动分析。通过对比天然径流和实测径流两种不同分析结果，从径流优势时段时空分布变化、径流变化趋势和径流长期记忆性等方面，探讨了人类活动对长期水文情势的影响。结果显示：（a）径流变化的周期性是气候变化的结果，特别是降水变化，而人类活动的影响较小;（B）天然径流序列沿着渭河干流都有明显的减少趋势，而实测流量的减少更严重，这应是近几十年来人类活动的影响所致;渭河径流量的持续减少将引发未来严重的淡水短缺，可能对流域水资源开发的可持续性和安全性构成挑战，在2020年前应引起高度重视。编辑Z.W.作者声明：by Kundzewicz. Hamed
ABSTRACT Under the combined influence of climate changes and human activities, the hydrological regime of the Wei River shows remarkable variations which have caused many issues in the Wei River in recent decades, such as a lack of freshwater, water pollution, disastrous flooding and channel sedimentation. Hence, hydrological regime changes and potential human-induced impacts have been drawing increasing attention from local government and hydrologists. This study investigates hydrological regime changes in the natural and measured runoff series at four hydrological stations on the main Wei River and quantifies features of their long-term change by analysing their historical annual and seasonal runoff data using several approaches, i.e., continuous wavelet transform, cross-wavelet, wavelet coherence, trend-free pre-whitening Mann-Kendall test and detrended fluctuation analysis. By contrasting two different analysis results between natural and measured river runoff series, the impacts of human activities on the long-term hydrological regime were investigated via the changes of spatio-temporal distribution in dominant periods, the trends and long-range memory of river runoff. The results show : (a) that periodic properties of the streamflow changes are the result of climate, referring to precipitation changes in particular, while human activities play a minor role; (b) a significant decreasing trend can be observed in the natural streamflow series along the entire main stream of the Wei River and the more serious decrease emerging in measured flow should result from human-induced influences in recent decades; and (c) continuous decreasing streamflow in the Wei River will trigger serious shortages of freshwater in the future, which may challenge the sustainability and safety of water resources development in the river basin, and should be paid great attention before 2020. Editor Z.W. Kundzewicz; Associate editor K. Hamed
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影响因子：
8.6
作者：
P. Mauas;E. Flamenco;A. Buccino
通讯作者：
P. Mauas;E. Flamenco;A. Buccino
DOI：
--
发表时间：
2007
期刊：
Journal of Northwest A & F University
影响因子：
--
作者：
Cao Hong-xia
通讯作者：
Cao Hong-xia
影响因子：
56.9
作者：
P. Foukal;Judith Lean
通讯作者：
P. Foukal;Judith Lean
DOI：
--
发表时间：
2009
期刊：
Journal of Basic Science and Engineering
影响因子：
--
作者：
Ding Zhihong
通讯作者：
Ding Zhihong
DOI：
--
发表时间：
2006
期刊：
Journal of Arid Land Resources and Environment
影响因子：
--
作者：
Hu An-yan
通讯作者：
Hu An-yan