Blue-green water resource availability dynamics in the upper Awash basin, central Ethiopia: implications for agricultural water scarcity assessment

Birtukan Abebe Hirpa; Girma Berhe Adane; Minwoo Roh; Cholho Song; Dessie Nedaw; Asfawossen Asrat; W. K. Lee

doi:10.1080/10106049.2023.2252767

Blue-green water resource availability dynamics in the upper Awash basin, central Ethiopia: implications for agricultural water scarcity assessment

Birtukan Abebe Hirpa^*
, Girma Berhe Adane
, Minwoo Roh
, Cholho Song
, Dessie Nedaw
, Asfawossen Asrat
, W. K. Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Quantifying and characterizing the spatial distribution of freshwater availability and water scarcity plays an indispensable role in managing water resources in a basin. This study aimed at quantifying green and blue water resource availability using an eco-hydrological model under different land use land cover conditions between 2000–2010 and 2020 in the upper Awash basin, central Ethiopia. Further, the agricultural water scarcity is assessed for dominantly cultivated crops in the basin. The freshwater components such as the green water (GW) flow (∼1041–1240 mm/yr), blue water (BW) flow (277–304 mm/yr), and GW storage (809-872 mm/yr) were observed to be high in the western highlands compared to the central and eastern parts of the basin. The results of GW scarcity indices show low to moderate scarcity for rainfed crops, and moderate to significant BW scarcity for irrigated sugarcane. Integrating GW potential to reduce BW scarcity in the basin is thus crucial.

Original language	English
Article number	2252767
Journal	Geocarto International
Volume	38
Issue number	1
DOIs	https://doi.org/10.1080/10106049.2023.2252767
Publication status	Published - 2023

Bibliographical note

Funding Information:
This study was supported by OJEong Resilience Institute (OJERI) at Korea University under the Basic Science Research Program through the National Research Foundation of Korea (NRF) (NRF-2021R1A6A1A10045235) and the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 23UMRG-B158194-04). This work is part of the Ph.D. dissertation of the first author (BAH) at the Africa Center of Excellence for Water Management, Addis Ababa University, under the supervision of AA and DN. The authors acknowledge the National Meteorological Services Agency (NMSA), the Ethiopian Ministry of Water and Energy, FAO (for FAO-WaPOR database), and ECMWF's Copernicus Climate Change Service product databases for providing us data free of charge. In addition, we acknowledge Dr. Alemseged Tamiru, Dr. Fasikaw Atanaw and Professor Tenalem Ayenew for their constructive feedback on earlier versions of the manuscript.

Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 13 Climate Action
SDG 15 Life on Land

Keywords

Green water flow/storage
blue water flow
green/blue water scarcity
upper Awash basin
water availability

ASJC Scopus subject areas

Geography, Planning and Development
Water Science and Technology

Access to Document

10.1080/10106049.2023.2252767

Cite this

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title = "Blue-green water resource availability dynamics in the upper Awash basin, central Ethiopia: implications for agricultural water scarcity assessment",

abstract = "Quantifying and characterizing the spatial distribution of freshwater availability and water scarcity plays an indispensable role in managing water resources in a basin. This study aimed at quantifying green and blue water resource availability using an eco-hydrological model under different land use land cover conditions between 2000–2010 and 2020 in the upper Awash basin, central Ethiopia. Further, the agricultural water scarcity is assessed for dominantly cultivated crops in the basin. The freshwater components such as the green water (GW) flow (∼1041–1240 mm/yr), blue water (BW) flow (277–304 mm/yr), and GW storage (809-872 mm/yr) were observed to be high in the western highlands compared to the central and eastern parts of the basin. The results of GW scarcity indices show low to moderate scarcity for rainfed crops, and moderate to significant BW scarcity for irrigated sugarcane. Integrating GW potential to reduce BW scarcity in the basin is thus crucial.",

keywords = "Green water flow/storage, blue water flow, green/blue water scarcity, upper Awash basin, water availability",

author = "Hirpa, \{Birtukan Abebe\} and Adane, \{Girma Berhe\} and Minwoo Roh and Cholho Song and Dessie Nedaw and Asfawossen Asrat and Lee, \{W. K.\}",

note = "Funding Information: This study was supported by OJEong Resilience Institute (OJERI) at Korea University under the Basic Science Research Program through the National Research Foundation of Korea (NRF) (NRF-2021R1A6A1A10045235) and the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 23UMRG-B158194-04). This work is part of the Ph.D. dissertation of the first author (BAH) at the Africa Center of Excellence for Water Management, Addis Ababa University, under the supervision of AA and DN. The authors acknowledge the National Meteorological Services Agency (NMSA), the Ethiopian Ministry of Water and Energy, FAO (for FAO-WaPOR database), and ECMWF's Copernicus Climate Change Service product databases for providing us data free of charge. In addition, we acknowledge Dr. Alemseged Tamiru, Dr. Fasikaw Atanaw and Professor Tenalem Ayenew for their constructive feedback on earlier versions of the manuscript. Publisher Copyright: {\textcopyright} 2023 The Author(s). Published by Informa UK Limited, trading as Taylor \& Francis Group.",

year = "2023",

doi = "10.1080/10106049.2023.2252767",

language = "English",

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journal = "Geocarto International",

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T2 - implications for agricultural water scarcity assessment

AU - Hirpa, Birtukan Abebe

AU - Adane, Girma Berhe

AU - Roh, Minwoo

AU - Song, Cholho

AU - Nedaw, Dessie

AU - Asrat, Asfawossen

AU - Lee, W. K.

N1 - Funding Information: This study was supported by OJEong Resilience Institute (OJERI) at Korea University under the Basic Science Research Program through the National Research Foundation of Korea (NRF) (NRF-2021R1A6A1A10045235) and the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 23UMRG-B158194-04). This work is part of the Ph.D. dissertation of the first author (BAH) at the Africa Center of Excellence for Water Management, Addis Ababa University, under the supervision of AA and DN. The authors acknowledge the National Meteorological Services Agency (NMSA), the Ethiopian Ministry of Water and Energy, FAO (for FAO-WaPOR database), and ECMWF's Copernicus Climate Change Service product databases for providing us data free of charge. In addition, we acknowledge Dr. Alemseged Tamiru, Dr. Fasikaw Atanaw and Professor Tenalem Ayenew for their constructive feedback on earlier versions of the manuscript. Publisher Copyright: © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

PY - 2023

Y1 - 2023

N2 - Quantifying and characterizing the spatial distribution of freshwater availability and water scarcity plays an indispensable role in managing water resources in a basin. This study aimed at quantifying green and blue water resource availability using an eco-hydrological model under different land use land cover conditions between 2000–2010 and 2020 in the upper Awash basin, central Ethiopia. Further, the agricultural water scarcity is assessed for dominantly cultivated crops in the basin. The freshwater components such as the green water (GW) flow (∼1041–1240 mm/yr), blue water (BW) flow (277–304 mm/yr), and GW storage (809-872 mm/yr) were observed to be high in the western highlands compared to the central and eastern parts of the basin. The results of GW scarcity indices show low to moderate scarcity for rainfed crops, and moderate to significant BW scarcity for irrigated sugarcane. Integrating GW potential to reduce BW scarcity in the basin is thus crucial.

AB - Quantifying and characterizing the spatial distribution of freshwater availability and water scarcity plays an indispensable role in managing water resources in a basin. This study aimed at quantifying green and blue water resource availability using an eco-hydrological model under different land use land cover conditions between 2000–2010 and 2020 in the upper Awash basin, central Ethiopia. Further, the agricultural water scarcity is assessed for dominantly cultivated crops in the basin. The freshwater components such as the green water (GW) flow (∼1041–1240 mm/yr), blue water (BW) flow (277–304 mm/yr), and GW storage (809-872 mm/yr) were observed to be high in the western highlands compared to the central and eastern parts of the basin. The results of GW scarcity indices show low to moderate scarcity for rainfed crops, and moderate to significant BW scarcity for irrigated sugarcane. Integrating GW potential to reduce BW scarcity in the basin is thus crucial.

KW - Green water flow/storage

KW - blue water flow

KW - green/blue water scarcity

KW - upper Awash basin

KW - water availability

UR - https://www.scopus.com/pages/publications/85169838466

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DO - 10.1080/10106049.2023.2252767

M3 - Article

AN - SCOPUS:85169838466

SN - 1010-6049

VL - 38

JO - Geocarto International

JF - Geocarto International

IS - 1

M1 - 2252767

ER -

Blue-green water resource availability dynamics in the upper Awash basin, central Ethiopia: implications for agricultural water scarcity assessment

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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