Geographic Information System based suitability analysis for potentials and challenges of small-scale irrigation in Lake Tana sub-basin, Ethiopia

Addisu, Solomon; Kassawmar, Banchiamlak; Mekuriaw, Asnake; Haileslassie, Amare

doi:10.1080/15715124.2019.1640227

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Some studies used SWAT to evaluate the effect of rainfall on: (1) surface flow, e.g., [45,48,51,[53][54][55]60,61]; (2) surface flow and subsurface flow, e.g., [58,59,83]; (3) surface flow and sediment flow, e.g., [50,57,68]; (4) sediment flow, e.g., [65,94]; (5) lake level, e.g., [95]; (6) drainage ratio, e.g., [96]; (7) soil erosion, e.g., [97]; and (8) flood hazard, e.g., [46]. Other studies used SWAT to analyze the impact of soil and water conservation measured on (1) surface flow and subsurface flow, e.g., [64], and (2) surface flow and sediment flow, e.g., [68,76,78]. Only few studies used SWAT to quantify the impact of land use/land cover on (1) surface flow, e.g., [70], and (2) surface flow and subsurface flow, e.g., [66,71].…”

Section: Modelling Approaches Of Studies In the Lake Tana Basinmentioning

confidence: 99%

“…[96]; (7) soil erosion, e.g., [97]; and (8) flood hazard, e.g., [46]. Other studies used SWAT to analyze the impact of soil and water conservation measured on (1) surface flow and subsurface flow, e.g., [64], and (2) surface flow and sediment flow, e.g., [68,76,78]. Only few studies used SWAT to quantify the impact of land use/land cover on (1) surface flow, e.g., [70], and (2) surface flow and subsurface flow, e.g., [66,71].…”

Section: Modelling Approaches Of Studies In the Lake Tana Basinmentioning

confidence: 99%

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To What Extent Is Hydrologic Connectivity Taken into Account in Catchment Studies in the Lake Tana Basin, Ethiopia? A Review

Astuti

Annys

Dessie

et al. 2022

Land

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Knowledge of hydrologic connectivity is important to grasp the hydrological response at a basin scale, particularly as changes in connectivity can have a negative effect on the environment. In the context of a changing climate, being able to predict how changes in connectivity will affect runoff and sediment transport is particularly relevant for land-use planning. Many studies on hydrology, geomorphology and climatology have been conducted in the Lake Tana Basin in Ethiopia, which is undergoing rapid development and significant environmental changes. This systematic literature review aims at assessing to what extent the hydrologic connectivity has been taken into account in such research, and to identify research gaps relevant to land and water management. On the Web of Science and Scopus databases, 135 scientific articles covering those topics were identified. Aspects of hydrologic connectivity were mostly implicitly taken into account based on process-based, statistical and descriptive models. Amongst the drivers of changing connectivity, the climate was covered by a large majority of publications (64%). Components of structural hydrologic connectivity were accounted for by considering geomorphology (54%) and soils (47%), and to a lesser extent, hydrography (16%) and geology (12%). Components of functional connectivity were covered by looking at surface water fluxes (61%), sediment fluxes (18%) and subsurface water fluxes (13%). While numerous studies of the Lake Tana Basin accounted for the hydrologic connectivity implicitly, these related predominantly to functional components. The structural components are given less attention, while in the context of a changing climate, better insights into their influence on the hydrologic seem most relevant. Better knowledge of the static aspect of connectivity is particularly important for targeting appropriate soil and water conservation strategies. Being able to explicitly assess the ‘structural connectivity’ is therefore of direct relevance for land management and land-use policy.

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Section: Modelling Approaches Of Studies In the Lake Tana Basinmentioning

confidence: 99%

Section: Modelling Approaches Of Studies In the Lake Tana Basinmentioning

confidence: 99%

To What Extent Is Hydrologic Connectivity Taken into Account in Catchment Studies in the Lake Tana Basin, Ethiopia? A Review

Astuti

Annys

Dessie

et al. 2022

Land

View full text Add to dashboard Cite

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Carbon Stock and Mitigation Potentials of Zeghie Natural Forest for Climate Change Disaster Reduction, Blue Nile Basin, Ethiopia

2019

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Who is Likely to Benefit from Public and Private Sector Investments in Farmer-led Irrigation Development? Evidence from Ethiopia

Kafle

Omotilewa

Leh

et al. 2021

The Journal of Development Studies

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In recent years, farmer-led irrigation development has gained the interest of development partners and governments in the Global South following its success in enhancing agricultural production and livelihoods in South Asia. However, little is known about the socio-economic situation of farmers who receive public support for its expansion. Considering its rapid expansion in sub-Saharan Africa, we take the case of Ethiopia and explore the relationship between irrigation suitability and farmers' socio-economic status. We find that high-value crop producers and wealthier farmers are most likely to make private investments and also benefit from public support in farmer-led irrigation expansion if investments are directed to land areas highly suitable for irrigation. Cultivation of high-value crops (fruit, vegetables) was common in areas more suitable for irrigation but staple crop cultivation (cereals, legumes) was negatively associated with irrigation suitability. Wealth status (consumption expenditure, asset index, and land size) was also positively correlated with irrigation suitability. A 10 per cent increase in groundwater irrigation suitability score was associated with a 2 per cent increase in per-capita consumption expenditure. Results imply that policies aiming to facilitate farmer-led irrigation development should combine biophysical information on land and water suitability for irrigation with household socio-economic characteristics and existing agricultural systems.

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Geographic Information System based suitability analysis for potentials and challenges of small-scale irrigation in Lake Tana sub-basin, Ethiopia

Cited by 3 publications

References 9 publications

To What Extent Is Hydrologic Connectivity Taken into Account in Catchment Studies in the Lake Tana Basin, Ethiopia? A Review

To What Extent Is Hydrologic Connectivity Taken into Account in Catchment Studies in the Lake Tana Basin, Ethiopia? A Review

Carbon Stock and Mitigation Potentials of Zeghie Natural Forest for Climate Change Disaster Reduction, Blue Nile Basin, Ethiopia

Who is Likely to Benefit from Public and Private Sector Investments in Farmer-led Irrigation Development? Evidence from Ethiopia

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