Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia

Abstract Dense impenetrable thickets of invasive trees and shrubs compete with other water users and thus disrupt ecosystem functioning and services. This study assessed water use by the evergreen Prosopis juliflora, one of the dominant invasive tree species in semi-arid and arid ecosystems in the t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hailu Shiferaw, Tena Alamirew, Sebinasi Dzikiti, Woldeamlak Bewket, Gete Zeleke, Urs Schaffner
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dbcba644fb704d48ba5d2636bbff5f6f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:dbcba644fb704d48ba5d2636bbff5f6f
record_format	dspace
spelling	oai:doaj.org-article:dbcba644fb704d48ba5d2636bbff5f6f2021-12-02T10:47:54ZWater use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia10.1038/s41598-021-81776-62045-2322https://doaj.org/article/dbcba644fb704d48ba5d2636bbff5f6f2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81776-6https://doaj.org/toc/2045-2322Abstract Dense impenetrable thickets of invasive trees and shrubs compete with other water users and thus disrupt ecosystem functioning and services. This study assessed water use by the evergreen Prosopis juliflora, one of the dominant invasive tree species in semi-arid and arid ecosystems in the tropical regions of Eastern Africa. The objectives of the study were to (1) analyze the seasonal water use patterns of P. juliflora in various locations in Afar Region, Ethiopia, (2) up-scale the water use from individual tree transpiration and stand evapotranspiration (ET) to the entire invaded area, and 3) estimate the monetary value of water lost due to the invasion. The sap flow rates of individual P. juliflora trees were measured using the heat ratio method while stand ET was quantified using the eddy covariance method. Transpiration by individual trees ranged from 1–36 L/day, with an average of 7 L of water per tree per day. The daily average transpiration of a Prosopis tree was about 3.4 (± 0.5) mm and the daily average ET of a dense Prosopis stand was about 3.7 (± 1.6) mm. Using a fractional cover map of P. juliflora (over an area of 1.18 million ha), water use of P. juliflora in Afar Region was estimated to be approximately 3.1–3.3 billion m3/yr. This volume of water would be sufficient to irrigate about 460,000 ha of cotton or 330,000 ha of sugar cane, the main crops in the area, which would generate an estimated net benefit of approximately US$ 320 million and US$ 470 million per growing season from cotton and sugarcane, respectively. Hence, P. juliflora invasion in the Afar Region has serious impacts on water availability and on the provision of other ecosystem services and ultimately on rural livelihoods.Hailu ShiferawTena AlamirewSebinasi DzikitiWoldeamlak BewketGete ZelekeUrs SchaffnerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hailu Shiferaw Tena Alamirew Sebinasi Dzikiti Woldeamlak Bewket Gete Zeleke Urs Schaffner Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
description	Abstract Dense impenetrable thickets of invasive trees and shrubs compete with other water users and thus disrupt ecosystem functioning and services. This study assessed water use by the evergreen Prosopis juliflora, one of the dominant invasive tree species in semi-arid and arid ecosystems in the tropical regions of Eastern Africa. The objectives of the study were to (1) analyze the seasonal water use patterns of P. juliflora in various locations in Afar Region, Ethiopia, (2) up-scale the water use from individual tree transpiration and stand evapotranspiration (ET) to the entire invaded area, and 3) estimate the monetary value of water lost due to the invasion. The sap flow rates of individual P. juliflora trees were measured using the heat ratio method while stand ET was quantified using the eddy covariance method. Transpiration by individual trees ranged from 1–36 L/day, with an average of 7 L of water per tree per day. The daily average transpiration of a Prosopis tree was about 3.4 (± 0.5) mm and the daily average ET of a dense Prosopis stand was about 3.7 (± 1.6) mm. Using a fractional cover map of P. juliflora (over an area of 1.18 million ha), water use of P. juliflora in Afar Region was estimated to be approximately 3.1–3.3 billion m3/yr. This volume of water would be sufficient to irrigate about 460,000 ha of cotton or 330,000 ha of sugar cane, the main crops in the area, which would generate an estimated net benefit of approximately US$ 320 million and US$ 470 million per growing season from cotton and sugarcane, respectively. Hence, P. juliflora invasion in the Afar Region has serious impacts on water availability and on the provision of other ecosystem services and ultimately on rural livelihoods.
format	article
author	Hailu Shiferaw Tena Alamirew Sebinasi Dzikiti Woldeamlak Bewket Gete Zeleke Urs Schaffner
author_facet	Hailu Shiferaw Tena Alamirew Sebinasi Dzikiti Woldeamlak Bewket Gete Zeleke Urs Schaffner
author_sort	Hailu Shiferaw
title	Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
title_short	Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
title_full	Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
title_fullStr	Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
title_full_unstemmed	Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia
title_sort	water use of prosopis juliflora and its impacts on catchment water budget and rural livelihoods in afar region, ethiopia
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dbcba644fb704d48ba5d2636bbff5f6f
work_keys_str_mv	AT hailushiferaw wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia AT tenaalamirew wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia AT sebinasidzikiti wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia AT woldeamlakbewket wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia AT getezeleke wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia AT ursschaffner wateruseofprosopisjulifloraanditsimpactsoncatchmentwaterbudgetandrurallivelihoodsinafarregionethiopia
_version_	1718396734683480064

Water use of Prosopis juliflora and its impacts on catchment water budget and rural livelihoods in Afar Region, Ethiopia

Ejemplares similares