Advanced Paddy field Engineering

CHAPTER 1: DEVELOPMENT OF PADDY FIELD eNGINEERING IN JAPAN 1.1Introduction 1.2General Views of Rice Production in Japan 1.3Recent Development of Paddy Field Engineering 1.4Propsects of Paddy Field Engineering CHAPTER 2:CHARACTERISTICS OF PADDY SOILS 2.1Intoduction 2.2Formation of Paddy Soil2.3Fertility of Paddy Soils 2.4Soils Related Environmental Issues of Paddy Fields 2.5Research Needs CHAPTER 3:IRRIGATION WATER REQUIREMENT 3.1Introduction 3.2Basis of Irrigation Water Requirement 3.3Water Budget of Paddy Field Plot 3.4General Feature of Water Budget and Water Requirement of Paddy Field Plot 3.5Water Requirement of Paddy Fields and Irrigation Efficiencies 3.6Research Needs CHAPTER 4:IRRIGATION SYSTEM DESIGN 4.1Introduction 4.2Open Channel and Supply-oriented Systems 4.3Pipelines and Demand-oriented Systems 4.4Compound Irrigation Systems and Intermediate Reservoirs 4.5Research Needs CHAPTER 5:PERCOLATION AND SEEPAGE 5.1Introduction 5.2Percolation of Paddy Fields 5.3 effect of Fields Conditions on Percolation 5.4Puddling 5.5Percoaltion in Layered Soils and its Influence on Soil Physical and Chemical Properties 5.6Research Needs CHAPTER 6:FIELD DRAINAGE 6.1Drainage in Paddy Fields 6.2Drainage Methods 6.3Characteristics of Flow Through Cracks 6.4Research Needs CHAPTER 7: RUNOFF ANALYSIS OF PADDY FIELD BASED WATERSHEDS 7.1Introduction 7.2runoff Phenomena of Rainwater and Runoff analysis 7.3Hydrological Data and Methods of its Application 7.4Runoff Analysis of Non-inundated Areas 7.5Runoff Analysis of Inundated Areas 7.6Research Needs CHAPTER 8:WATER QUALITY IN IRRIGATION AND DRAINAGE 8.1Introduction 8.2Sources of Water Pollution and Countermeasures 8.3Water Quality in Drainage Water From Paddy Fields 8.4Water Environmental in Rural Districts and Natural Water Purification Function 8.5 Research Needs CHAPTER 9:WATER REUSE SYSTEM 9.1Introduction 9.2Water balance in Paddy Area 9.3Water Reuse in a Irrigation System 9.4Water Recycling on River Basin Level 9.5Critical Block (CB) Method 9.6Evaluation of Irrigation Efficiency in Water Reuse System 9.7Research Needs CHAPTER 10:LAND CONSOLIDATION AND FIELD LAYOUT 10.1Introduction 10.2System of Paddy Field and its Improvement 10.3Land consolidation in Lowland Paddy Fields 10.4Land Consolidation Planning of Paddy Field in Sloping Area 10.5Replotting System 10.6Research Needs CHAPTER 11:EARTH WORKS IN PADDY FIELDS 11.1Introduction 11.2Earth Works in Paddy Fields Consolidation 11.3Percolation control in Paddy Fields 11.4Research Needs CHAPTER 12:AUTOMATIC OPERATION OF IRRIGATION SYSTEM 12.1Introduction 12.2Operation and Control of Main Channel Systems12.3Operation and Control of Farm Level Water Management 12.4Automatic Operation and Channel Network Layout 12.5Computer Model for Water Managemet Technology 12.6Research Needs CHAPTER13:WATER MANAGEMENT FOR CONTROLING COOL SUMMER DAMAGE 13.1Introduction 13.2cool Summer Damage 13.3Reduction of Cool Summer Damage Through Water Management 13.4Water Management after Farm Land Consolidation 13.5Research Needs CHAPTER 14: EMERGING METHODS OF TILLAGE AND SEEDING 14.1Introduction 14.2Present and Emerging Methods of Rice Culture 14.3No-Tilled Direct Seeding Rice Culture 14.4No-tilled Transplanting Rice culture 14.5Cropping System by Use of No-tilled culture 14.6Methods of Direct seeding Rice culture Under Investigation 14.7Research Needs CHAPTER 15: FARM MACHINERY FOR RICE CULTIVATION 15.1Introduction 15.2Machinery for Tillage and Puddling 15.3Rice Planting Systems 15.4Harvesting Systems 15.5Other Machinery 15.6Present Trends in farm Machinery Development CHAPTER 16:EARTH MOVING MACHINES 16.1Introduction 16.2Bulldozers 16.3Scrapedozers 16.4Hydraulic Shovel Excavators of Backhoe Type 16.5Trenchers 16.6Mole Drainers16.7Tile Machines 16.8Pan Breakers 16.9Rubber Tracked Trators 16.10Rresearch Needs CHAPTER 17:MODELING APPLICATIONS FOR PADDY FIELD MANAGEMENT 17.1Introduction 17.2WaterBalance Models 17.3Modeling Water Allocating in large Irrigation Channels 17.4Unsteady Flow Modeling in Irrigation Channels17.5Modeling On.Farm /storage Facilities 17.6Evaluation of Field Layouts 17.7Crop Growth Models 17.8Conclusion CHAPTER 18: WATER USERS ASSOCIATIONS AND LAND IMPROVEMENT DISTRICTS 18.1Introduction 18.2Uniqueness in Japanese Irrigation systems 18.3Necessity of Water Users Associations 18.4Present Situation and Programs in Land Improvement Districts 18.5 Need for Water Users Groups/Association in Asia 18.6Prospective Directions of Water Users Groups/ssociations in Japan And Asia. CHAPTER 19: ENVIRONMENTAL ISSUES 19.1Introduction 19.2Groundwater Recharge 19.3Flood Protection 19.4Meteorological Effects 19.5Methance Emission from Paddy Fields 19.6 Nitrogen Dynamics in Paddy Fields and their Influences on the environmental 19.7REsearch Needs CHAPTER 20: PADDY FIELD MANAGEMENT FOR DISEASE VECTOR CONTROL 20.1Introduction 20.2Terminology 20.3Diseases Related with Paddy Fields 20.4Necessity of Environmental Measures for Vector control 20.5Irrigation System Appropriate for Vector control 20.6Water Management for Vector Control 20.8Research Needs.

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