Part A Flood control Chapter 1 Characteristics of flood disasters Chapter 2 Flood control methods Chapter 3 Significance of flood disturbance Part B Paddy fields Chapter 4 Characteristics of paddy fields Chapter 5 Multiple functions of paddy fields Part C Case study of a river Chapter 6 Flood survey Chapter 7 Open levee survey Chapter 8 Survey of the river ecosystem downstream of a dam Chapter 9 Lake Biwa survey Part D Case study of paddy fields Chapter 10 Drainage canal system survey Chapter 11 Irrigation canal system survey Chapter 12 Fish-retreat ditch survey Part E Wetland development Chapter 13 Improvements to enrich paddy irrigation and drainage canal systems Chapter 14 Multiple effects of wetland development Chapter 15 Wetland management