Table of Contents

• 1. Background p.1 
• 2. The present conditions and problems of rice field p.1 
• 3. Development concept p.4 
• 4. Canal protection p.5 
  • 4.1 Canal reinforcement using bricks made from local soil p.5 
    • 4.1.1 Brick materials p.5 
    • 4.1.2 Pretreatment p.6 
    • 4.1.3 Creation of bricks p.12 
    • 4.1.4 Installation of the bricks at waterways p.14 
  • 4.2 Reinforcement work utilizing cover-plant p.16 
    • 4.2.1 Objectives and policies p.16 
    • 4.2.2 Property required p.17 
    • 4.2.3 Selection p.18
    • 4.2.4 Recommendable species p.19
    • 4.2.5 Planting Works p.20 
    • 4.2.6 Maintenance p.21 
    • 4.2.7 Control p.22 
  • 4.3 Wooden fence p.23 
    • 4.3.1 Advantages of wooden fence p.23 
    • 4.3.2 Types of waterways for which wooden fence are suitable p.23 
    • 4.3.3 Installation method of wooden fence p.23 
    • 4.3.4 Maintenance of wooden fence p.23 

Foundation
This manual is funded by Ministry of Agriculture, Forestry and Fishery Japan