干旱区生态环境知识资源中心(Arid): Climate Change Impacts on Blue and Green Water of Meki River Sub-Basin

Arid

DOI	10.1007/s11269-023-03490-4
	Climate Change Impacts on Blue and Green Water of Meki River Sub-Basin
	Hordofa, Aster Tesfaye; Leta, Olkeba Tolessa; Alamirew, Tena; Chukalla, Abebe Demissie
通讯作者	Hordofa, AT
来源期刊	WATER RESOURCES MANAGEMENT
ISSN	0920-4741
EISSN	1573-1650
出版年	2023
卷号	37 期号:6-7 页码:2835-2851
英文摘要	Climate change (CC) is likely to have a negative effect on water balance components thereby increasing global water scarcity. These effects, particularly in arid and semi-arid areas, have not been fully understood, in part because green water was not adequately represented in the relevant assessments. This study analyzes the spatiotemporal variations of blue and green water resources under baseline and future climate conditions by applying the Soil and Water Assessment Tool plus (SWAT+) model to the Meki River, located in Central Rift Valley (CRV) Lake Basins of Ethiopia. Based on sensitive parameters, identified from sensitivity analysis, we calibrated and validated the SWAT + model for the period from 1993 to 2000 and 1987 to 1992, respectively. During both the calibration and validation period, the model showed reasonable performance with a Nash-Sutcliffe efficiency of greater than 0.65. The model was then used to assess the effects of CC (representative concentrations pathways, RCP, 4.5 and 8.5) on the blue and green water components of the Meki River. We found that blue water is expected to decrease under both RCPs (4.5 and 8.5) scenarios, but anticipated to show a more decline of up to 56% under the RCP 8.5 scenario. Oppositely, green water is expected to increase under both scenarios, but RCP8.5 is projected to cause a larger increase (24%) when compared to the baseline. Overall, the integrated blue and green water modeling and assessment can be used as a tool to develop efficient strategies for water resources management of the Meki River.
英文关键词	Central Rift Valley Lake Basin Ethiopia Representative Concentration Pathways 4 5 and 8 5 SWAT plus Climate change
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000971556200002
WOS关键词	TANA BASIN ; TEMPERATURE ; TRENDS ; SOIL ; VARIABILITY ; RESOURCES ; RAINFALL
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399147
推荐引用方式 GB/T 7714	Hordofa, Aster Tesfaye,Leta, Olkeba Tolessa,Alamirew, Tena,et al. Climate Change Impacts on Blue and Green Water of Meki River Sub-Basin[J],2023,37(6-7):2835-2851.
APA	Hordofa, Aster Tesfaye,Leta, Olkeba Tolessa,Alamirew, Tena,&Chukalla, Abebe Demissie.(2023).Climate Change Impacts on Blue and Green Water of Meki River Sub-Basin.WATER RESOURCES MANAGEMENT,37(6-7),2835-2851.
MLA	Hordofa, Aster Tesfaye,et al."Climate Change Impacts on Blue and Green Water of Meki River Sub-Basin".WATER RESOURCES MANAGEMENT 37.6-7(2023):2835-2851.