农业水土工程英语PDF电子书下载

Unit 1 1

Part A Water resources of the world 1

Part B What causes flooding 6

Unit 2 11

Part A Reservoirs and dams 11

Part B Dams and development-an insight to the report of the world commission on dams 16

Unit 3 24

Part A Hydroelectric power 24

Part B Pumps and Pumping 31

Unit 4 37

Part A Underground water 37

Part B The runoff cycle 46

Unit 5 50

Part A Water pollution and pollutants 50

Part B U.S.Wastewater treatment—past and present 54

Unit 6 57

Part A Modern buildings and structural materials 57

Part B Bridges 61

Unit 7 64

Part A Soil erosion and soil conservation 64

Part B Soil Conservation Issues on the United States 68

Unit 8 76

Part A Engineering economy in water-resources planning(Ⅰ) 76

Part B Engineering economy in water-resources planning(Ⅱ) 81

Unit 9 87

Part A Hydrology 87

Part B Current problems of stochastic hydrology 91

Unit 10 100

Part A Summary of EIA 100

Part B Inadequacies in current methods for environmental assessment 103

Unit 11 107

Part A Irrigation methods 107

Part B RDI—the new technique of water saving irrigation management in China 114

Unit 12 120

Part A Evaporation 120

Part B Evaporation model of lake Qaroun as influenced by lake salinity 125

Unit 13 135

Part A 21st Century's water saving in agriculture of Beijing 135

Part B The research and application of plastic pipe in infiltration irrigation 140

Unit 14 145

Part A Methods of applications of drip irrigation system 145

Part B Drip irrigation technology and state western area development strategy 149

Unit 15 159

Part A Water use efficiency of grain crops on irrigated fields in China 159

Part B Cumulative function of water sensitivity index for rice and its variation with hydrological years 165

Unit 16 171

Part A Some topics on developing water-saving irrigation 171

Part B Optimal use of irrigation water in the Jordan valley:a case study 176

Unit 17 184

Part A Irrigation canals 184

Part B The SLGCAD software system on a new type of linked tetra-shaft＆double-cantilever flat flap gate 188

Unit 18 197

Part A A preliminary investigation on irrigation schedule under sprinkler irrigation 197

Part B Study on expert system of irrigation forecast and decision making for water saving 202

参考译文 209

Key to exercises 245

参考文献 256