典型文献
Increasing probability of concurrent drought between the water intake and receiving regions of the Hanjiang to Weihe River Water Diversion Project,China
文献摘要:
Water diversion projects are an effective measure to mitigate water shortages in water-limited areas.Understanding the risk of such projects increasing concurrent drought between the water intake and receiving regions is essential for sustainable water manage-ment.This study calculates concurrent drought probability between the water intake and re-ceiving regions of the Hanjiang to Weihe River Water Diversion Project using Standardized Precipitation Index and Copula functions.Results showed an increasing trend in drought probability across both the water intake and receiving regions from 2.67%and 8.38%to 12.47%and 14.18%,respectively,during 1969-2018.The return period of concurrent drought decreased from 111.11 to 13.05 years,indicating larger risk of simultaneous drought between the two regions.Projections from CMIP6 suggested that under the SSP 2-4.5 and 5-8.5 scenarios,concurrent drought probability would increase by 2.40%and 7.72%in 2019-2050 compared to that in 1969-1990,respectively.Although increases in precipitation during 2019-2050 could potentially alleviate drought conditions relative to those during 1991-2018,high precipitation variability adds to the uncertainty about future concurrent drought.These findings provide a basis for better understanding concurrent drought and its impact on water diversion projects in a changing climate,and facilitate the establishment of adaptation coun-termeasures to ensure sustainable water availability.
文献关键词:
中图分类号:
作者姓名:
WANG Xiaohong;LIU Xianfeng;SUN Gaopeng
作者机构:
School of Geography and Tourist,Shaanxi Normal University,Xi'an 710119,China
文献出处:
引用格式:
[1]WANG Xiaohong;LIU Xianfeng;SUN Gaopeng-.Increasing probability of concurrent drought between the water intake and receiving regions of the Hanjiang to Weihe River Water Diversion Project,China)[J].地理学报(英文版),2022(10):1998-2012
A类:
Hanjiang,termeasures
B类:
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AB值:
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