Problems of Small Scale Irrigation Schemes in the Case of Ella and Bossa Schemes in Humbo Woreda, Snnprs, Ethiopia

Master's Thesis , 2021 , 120 Pages

Environmental Sciences

Small scale irrigation is one of the important pillars of the food security strategy of Ethiopian government that designed to promote the food production of small holder farmers. This study was aimed in assessment of the current status and causes of underperformance of the selected small scale irrigation schemes. To meet the objectives, the primary and secondary data were collected. The primary data were collected through household interviews, focus group discussions, key informant interviews, field observation and measurement. The secondary data were collected from office of water resource and irrigation, office of agricultural, and natural resource, and different published materials.

Discharge measurement was done in the canal network to determine the water delivery performance indicators such as conveyance efficiency, relative water supply, and relative irrigation supply of the schemes. The selected physical, financial and agricultural indicators were also used to assess the performance and identify the current status of the schemes.

Inhaltsverzeichnis (Table of Contents)

• CHAPTER ONE.
• 1. INTRODUCTION
• 1.1. Background of the Study
• 1.2. Statement of the problem
• 1.3. Objectives of the study
• 1.4. Research Question
• 1.5. Significance of the Study
• 1.6. Scope of the Study
• CHAPTER TWO.
• 2. LITERATURE REVIEW
• 2.1. Irrigation Development in Ethiopia
• 2.2. Irrigation Water Control and Management
• 2.2.1. Irrigation Water Management
• 2.2.2. Regulation of Flow Discharge and Water levels
• 2.3. Role of Irrigation in Feeding the World
• 2.4. Irrigation Management Experience in Ethiopia
• 2.5. Challenges of Small Scale Irrigation Management
• 2.5.1. Insufficient technical skill
• 2.5.2. Poor Scheme Management
• 2.5.3. Socio-institutional constraints
• 2.6. Performance Evaluation of Irrigation Practice
• 2.7. Water User Management
• 2.8. Improvement Options of Small Scale Irrigation
• 2.9. Organizational Setup of small Scale Irrigation
• 2.10. Crop Water Requirement
• CHAPTER THREE.
• 3. MATERIALS AND METHODS
• 3.1. Description of the Study Area
• 3.1.1. Location
• 3.1.2. Climate and hydrology
• 3.1.3. Crops grown in the Woreda
• 3.1.4. Agricultural practice of the study area
• 3.1.5. Description of irrigation schemes
• 3.1.6. Soil characteristics and crops grown in the projects area
• 3.2. Data collection methods
• 3.2.1. Quantitative Data
• 3.2.1.3. Agricultural output indicators
• 3.2.2. Qualitative Data
• 3.3. Cropping Pattern of the Irrigation Schemes
• 3.4. Crop Water Requirements of Major Irrigated Crops
• 3.5. Discharge measurement
• 3.5.1. Canals discharge measurement
• 3.6. Data Analysis
• CHAPTER FOUR.
• 4. RESULTS AND DISCUSSION
• 4.1. Demographic Characteristics of Irrigators
• 4.2. The Current Status of Irrigation Schemes
• 4.2.1. Ella small scale irrigation scheme
• 4.2.2. Bossa small scale irrigation scheme
• 4.2.3. Determination of crop irrigation requirements
• 4.2.4. Water delivery performance indicators
• 4.2.4.1. Conveyance efficiency
• 4.2.4.2. Relative water supply (RWS)
• 4.2.4.3. Relative irrigation supplies (RIS)
• 4.2.5. Physical performance indicators
• 4.2.5.1. Irrigation ratio and beneficiaries of targeted performance
• 4.2.5.2. Sustainability of irrigated area in ha/ha
• 4.2.6. Agricultural output indicators

Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)

This thesis evaluates the problems faced by small-scale irrigation schemes in Ethiopia, specifically examining the Ella and Bossa schemes in Humbo Woreda, SNNPRS. The study aims to identify and analyze the challenges hindering the effective operation and management of these schemes, leading to recommendations for improving performance and sustainability. Key themes explored in the text include:
• Irrigation Development and Challenges in Ethiopia
• Irrigation Water Control and Management Techniques
• Small-Scale Irrigation Scheme Performance Evaluation
• Socio-institutional Constraints Affecting Irrigation Management
• Recommendations for Improvement and Sustainability of Irrigation Schemes

Zusammenfassung der Kapitel (Chapter Summaries)

• Chapter One: Introduction
This chapter provides a comprehensive overview of the study, including background information on small-scale irrigation in Ethiopia, the specific problem addressed, the objectives of the study, and the research questions explored. It also outlines the significance and scope of the study.
• Chapter Two: Literature Review
This chapter presents a comprehensive review of existing literature on irrigation development in Ethiopia, focusing on water management, the role of irrigation in food security, and the challenges associated with small-scale irrigation schemes. It examines various aspects of irrigation management, including technical skills, scheme management, socio-institutional constraints, performance evaluation, and water user management.
• Chapter Three: Materials and Methods
This chapter details the study area, data collection methods, and data analysis techniques used. It includes a description of the Ella and Bossa irrigation schemes, the climate and hydrology of the region, and the crops cultivated in the area. The chapter also outlines the quantitative and qualitative data collected, the cropping patterns of the irrigation schemes, and the methods used to measure crop water requirements and discharge.
• Chapter Four: Results and Discussion
This chapter presents the findings of the study, examining the demographic characteristics of irrigators, the current status of the irrigation schemes, and the performance indicators related to water delivery and physical infrastructure. It analyzes the conveyance efficiency, relative water supply, relative irrigation supplies, irrigation ratio, and the sustainability of the irrigated area. The chapter concludes with a discussion of the agricultural output indicators observed in the schemes.

Schlüsselwörter (Keywords)

The key focus of this thesis is on small-scale irrigation schemes, their challenges, and strategies for improvement. It examines topics like irrigation development in Ethiopia, irrigation water management, performance evaluation of irrigation schemes, socio-institutional constraints, and crop water requirements. The work emphasizes the need for effective water delivery, efficient irrigation practices, and sustainable management of irrigation resources in the context of small-scale schemes in Ethiopia.

• College: Hawassa University (Institute of Technology)
• Course: Irrigation
• Author: Tinsae Dalga (Author)
• Publication Year: 2021
• Pages: 120
• Catalog Number: V1280389
• ISBN (PDF): 9783346734587
• ISBN (Book): 9783346734594
• Language: English
• Tags: problems, small, scale, irrigation, schemes, case, ella, bossa, humbo, woreda, snnprs, ethiopia