Performance Evaluation of Ethana Small-Scale Irrigation Scheme: Wolaita Zone, Southern Ethiopia DOI Creative Commons

Mandefro Chala,

Alemitu Akamo

Air Soil and Water Research, Journal Year: 2024, Volume and Issue: 17

Published: Jan. 1, 2024

Evaluating the existing irrigation system efficiency and proposing corrective actions are crucial for enhancing scheme performance. Hence, this study aimed to evaluate effectiveness of Ethana small-scale (SSI) using a set selected indicators. Relevant data were collected from field measurements various documents. The scheme’s performance was evaluated by determining water delivery, as well internal physical Flow rates at off-takes (head, middle, tail sections scheme) recorded current meter 2″ Parshall flume. CROPWAT 8.0 computer software used determine demand crops. Data analysis employed empirical equations, simple descriptive statistics GIS software. result revealed that overall 38.5% which is below recommended value. mean values delivery indicators follows: adequacy (0.85), (0.81), equity (0.24), dependability (0.29). adequacy, equity, under fair conditions, while poor. ratio (0.85) sustainability irrigated areas (0.93) showed area potential irrigable/command area. Generally, Ethana’s has been performing expectations due factors. Therefore, it improve awareness users regarding plan, operation, maintenance structures.

Language: Английский

Performance Evaluation of Small-Scale Irrigation Scheme: A Case Study of Temsa Small Scale Irrigation Scheme of Goma District, Jimma Zone, South West Ethiopia DOI Creative Commons
Etefa Tilahun Ashine, Minda Tadesse Bedane,

Hewan Tadesse

et al.

Air Soil and Water Research, Journal Year: 2025, Volume and Issue: 18

Published: Jan. 1, 2025

A study was carried out from November to May in the cropping season of 2016E.C evaluate performance Temsa small scale irrigation scheme. Both internal and external indicators were considered for evaluation. The indicator efficiencies such as conveyance, application, storage, distribution uniformity, deep percolation ratio agricultural output, water supply, delivery capacity, physical, economic financial evaluated. result reveals that, average conveyance efficiency main, secondary, tertiary canals 79.6%, 85.6%, 84.7%, respectively. scheme has on application (Ea), storage efficiency, ratio, uniformity 40.87%, 78.04%, 59.70%, 93.33%, poor Ea low canal affected overall performance. 23.19%. four basic output per unit irrigated area, command diverted, consumed 4,738.58 US$/ha, 1,176.08 1.16 US$/m 3 , 0.89 This shows area beneficial giving a revenue farmers at season. relative supply capacity 2.37 m 83%, In current study, sustainability 0.25 0.43, due designing problem. Availability throughout year market accessibility near advantage that encourage farmers. However, input costs affecting return obtained product. Hence it is better provide access credit sustainable production improve income.

Language: Английский

Citations

0
Performance evaluation of Dabasso Lamaffaa Small Scale Irrigation Scheme at Buno Bedele Zone, South West Ethiopia DOI Creative Commons
Etefa Tilahun Ashine,

Addisu Assefa Mengesha,

Minda Tadesse Bedane

et al.

Frontiers in Agronomy, Journal Year: 2025, Volume and Issue: 7

Published: May 1, 2025

Evaluating the performance of irrigation schemes is crucial to identify key problems that impede scheme efficiencies and utilization available resources. Accordingly, objective this study was evaluate Dabasso Lamaffa small-scale scheme. The carried out during cropping season from November up March 2015 E.C. Primary secondary data were collected for implementing efficiency productivity To collect measure relevant at field level, three representative farmers’ fields selected head, middle, tail-end water users in Both internal external indicators considered evaluation conveyance efficiency, application storage distribution uniformity, deep percolation ratio. agricultural output, supply indicators, delivery capacity physical economic financial indicators. result reveals average conveyance, application, storage, ratio, uniformity 76.44%, 30.47%, 82.74%, 69.53%, 95.29%, respectively. overall 23.29%, showing poor, it caused mainly due problem field. output 2620.83 (US$/ha), 2501.71 0.94 (US$/m 3 ), 0.91 respectively, per unit irrigated area, command diverted, consumed. This a recommended production, these regards productive. such as relative (RIS) (RWS), 2.13 2.05, which shows there no deficiency supplied excess. However, low, 83%, needs improvement. ratio sustainability also good, will be continuation using future. Awareness creation farmers on management essential improve benefit

Language: Английский

Citations

0
Soil moisture-based irrigation interval and irrigation performance evaluation: In the case of lower kulfo catchment, Ethiopia DOI Creative Commons
Birara Gebeyhu Reta,

Samuel Dagalo,

Mekuanent Muluneh

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(16), P. e36089 - e36089

Published: Aug. 1, 2024

The lack of soil moisture-based irrigation intervals, poor distribution water among users, and the time-based spatial variability supply have been challenges for productivity schemes in Lower Kulfo catchment, Southern Ethiopia. This study was conducted to develop intervals evaluate delivery field level efficiencies. Soil content, flow along canal were measured directly, duty estimated by using CropWat 8 model. To minimize stress or excess problems, needs be applied when content drops 35.7 % onion pepper, 34.4 %% watermelon, 32.5 wheat maize from capacity. However, at 36.2 onion, 35.4 36.4 maize, 35 existing scheme that increased amount field. average percentage moisture depletion (p) time 27.4 %, which below recommended value. adopted design interval 4 & 6 days 5 7 watermelon wheat, respectively. mean adequacy dependability lower catchment 1 0 Arba Minch scheme, 0.5 0.2 University farmland, 0.4 0.25 private farmland 0.1 0.43 Kollashara value equity 0.7 January, 0.6 February, 0.8 March indicates highly temporary variation adequacy. conveyance 82.7 on-farm efficiency also 56.6 %. crop yield present 0.5ton/ha 4.9ton/ha 6.2ton/ha 0.6ton/ha 4.2ton/ha very low compared with other control area. Inadequate inequitable distribution, variable hinder catchment; adopting optimized practices robust management can enhance efficiency, equity, productivity.

Language: Английский

Citations

1
Overall Performance Assessment of Selected Small-Scale Irrigation Schemes Using Internal and External Performance Indicators in West Hararghe Zone, Eastern Ethiopia DOI Creative Commons

Nade Nuru,

Ahmednasir Amin,

Abdulaziz Husen

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(19), P. e38123 - e38123

Published: Sept. 20, 2024

Language: Английский

Citations

1
Performance Evaluation of Ethana Small-Scale Irrigation Scheme: Wolaita Zone, Southern Ethiopia DOI Creative Commons

Mandefro Chala,

Alemitu Akamo

Air Soil and Water Research, Journal Year: 2024, Volume and Issue: 17

Published: Jan. 1, 2024

Evaluating the existing irrigation system efficiency and proposing corrective actions are crucial for enhancing scheme performance. Hence, this study aimed to evaluate effectiveness of Ethana small-scale (SSI) using a set selected indicators. Relevant data were collected from field measurements various documents. The scheme’s performance was evaluated by determining water delivery, as well internal physical Flow rates at off-takes (head, middle, tail sections scheme) recorded current meter 2″ Parshall flume. CROPWAT 8.0 computer software used determine demand crops. Data analysis employed empirical equations, simple descriptive statistics GIS software. result revealed that overall 38.5% which is below recommended value. mean values delivery indicators follows: adequacy (0.85), (0.81), equity (0.24), dependability (0.29). adequacy, equity, under fair conditions, while poor. ratio (0.85) sustainability irrigated areas (0.93) showed area potential irrigable/command area. Generally, Ethana’s has been performing expectations due factors. Therefore, it improve awareness users regarding plan, operation, maintenance structures.

Language: Английский

Citations

0