Attribution analysis of hydrological drought after the impoundment of the Danjiangkou reservoir in the Hanjiang River Basin

IF 4.7 2区 地球科学 Q1 WATER RESOURCES Journal of Hydrology-Regional Studies Pub Date : 2024-11-04 DOI:10.1016/j.ejrh.2024.102038
Cheng Li , Yanping Qu , Tianliang Jiang , Furen Jiang , Qianfeng Wang , Xuejun Zhang , Xiaohua Xu
{"title":"Attribution analysis of hydrological drought after the impoundment of the Danjiangkou reservoir in the Hanjiang River Basin","authors":"Cheng Li ,&nbsp;Yanping Qu ,&nbsp;Tianliang Jiang ,&nbsp;Furen Jiang ,&nbsp;Qianfeng Wang ,&nbsp;Xuejun Zhang ,&nbsp;Xiaohua Xu","doi":"10.1016/j.ejrh.2024.102038","DOIUrl":null,"url":null,"abstract":"<div><h3>Study region</h3><div>Hanjiang River Basin, China</div></div><div><h3>Study focus</h3><div>Under the joint influences of human activities and climate change, droughts frequently occur in the Hanjiang River Basin (HRB). Quantifying the driving forces contribution on hydrological drought is crucial to enhance the early warning ability. This study employed the standardized streamflow index (SSI) to assess hydrological drought. The Soil and Water Assessment Tool (SWAT) model was utilized to reconstruct natural streamflow based on hydrological and meteorological data. By comparing the variations of drought characteristics in simulated and observed scenarios, the impacts of human activities and climate change to hydrological drought were quantified.</div></div><div><h3>New hydrological insights for the study region</h3><div>The SWAT model is capable of effectively simulating the natural streamflow conditions of the HRB with NSE&gt;0.7, R<sup>2</sup>&gt;0.8, logNSE&gt;0.7 and |PBIAS|&lt;20 %. Hydrological drought has intensified as a prolonged duration and greater severity affected by human activities and climate change. During the whole impact period (1968–2022), the duration and severity increased by 66.22 % and 81.16 % compared to baseline period (1956–1967). The year 1991 is detected as the mutation point. From 1968–1990 climate change has been the main factor in exacerbating hydrological drought. Since 1991, the influence of human activities has gradually exceeded the influence of climate change. These findings provide valuable insights for watershed integrated water resources management and water security.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"56 ","pages":"Article 102038"},"PeriodicalIF":4.7000,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hydrology-Regional Studies","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214581824003872","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"WATER RESOURCES","Score":null,"Total":0}
引用次数: 0

Abstract

Study region

Hanjiang River Basin, China

Study focus

Under the joint influences of human activities and climate change, droughts frequently occur in the Hanjiang River Basin (HRB). Quantifying the driving forces contribution on hydrological drought is crucial to enhance the early warning ability. This study employed the standardized streamflow index (SSI) to assess hydrological drought. The Soil and Water Assessment Tool (SWAT) model was utilized to reconstruct natural streamflow based on hydrological and meteorological data. By comparing the variations of drought characteristics in simulated and observed scenarios, the impacts of human activities and climate change to hydrological drought were quantified.

New hydrological insights for the study region

The SWAT model is capable of effectively simulating the natural streamflow conditions of the HRB with NSE>0.7, R2>0.8, logNSE>0.7 and |PBIAS|<20 %. Hydrological drought has intensified as a prolonged duration and greater severity affected by human activities and climate change. During the whole impact period (1968–2022), the duration and severity increased by 66.22 % and 81.16 % compared to baseline period (1956–1967). The year 1991 is detected as the mutation point. From 1968–1990 climate change has been the main factor in exacerbating hydrological drought. Since 1991, the influence of human activities has gradually exceeded the influence of climate change. These findings provide valuable insights for watershed integrated water resources management and water security.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
汉江流域丹江口水库蓄水后水文干旱的归因分析
研究区域中国汉江流域研究重点在人类活动和气候变化的共同影响下,汉江流域干旱频发。量化水文干旱的驱动力对提高预警能力至关重要。本研究采用标准化流量指数(SSI)来评估水文干旱。根据水文和气象数据,利用水土评估工具 (SWAT) 模型重建了自然溪流。SWAT 模型能够有效地模拟 HRB 的自然流场条件,NSE>0.7、R2>0.8、logNSE>0.7 和 |PBIAS|<20 %。受人类活动和气候变化的影响,水文干旱加剧,持续时间延长,严重程度增加。与基线期(1956-1967 年)相比,整个影响期(1968-2022 年)的持续时间和严重程度分别增加了 66.22% 和 81.16%。1991 年是突变点。从 1968 年到 1990 年,气候变化是加剧水文干旱的主要因素。自 1991 年起,人类活动的影响逐渐超过气候变化的影响。这些发现为流域水资源综合管理和水安全提供了宝贵的启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Hydrology-Regional Studies
Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)
CiteScore
6.70
自引率
8.50%
发文量
284
审稿时长
60 days
期刊介绍: Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.
期刊最新文献
Sampling frequency significantly influenced surface soil moisture dynamics but not its prediction accuracy in an arid mountain forest Spatiotemporal variability of terrestrial water storage and climate response processes in the Tianshan from geodetic observations Characterization of hydrogeochemistry of the hot springs on both sides of the Nujiang River near Baoshan in the Yunnan-Tibet Geothermal Belt Response patterns of mountain river deltas and adjacent coasts to the changes in sediment discharge: A case study of Minjiang River, China Construction and verification of distributed hydrothermal coupling model in the source area of the Yangtze River
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1