Beschreibung
Inhaltsangabe1 Introduction: 1.1 Growth of vegetation; 1.2 Crop growth and evapotranspiration; 1.3 Irrigation water requirements; 1.4 The water balance of an irrigated field; 1.5 What does CRIWAR calculate? 1.6 ETp - Pe in the field water balance; 1.7 The irrigation ratios; 1.8 Structure of the Handbook. 2 Evapotranspiration: 2.1 Introduction; 2.2 Developments in Theory; 2.3 The Penman-Monteith Approach; 2.4 The Hargreaves-Samani Method; 2.5 Discussion; 2.6 The potential ET; 2.7 The Dual Kc Method: Incorporating Specific Wet Soil Effects; 2.8 ET during the Non-growing Season; 2.9 Evapotranspiration from Landscapes; 2.10 Estimating Kc from the fraction of Ground Cover; 2.11 Effects of Surface Mulching on Kc. 3 Effective Precipitation: 3.1 Introducton; 3.2 Major factors affecting effective precipitation; 3.3 The USDA Method. 4 Capillary Rise: 4.1 Introduction; 4.2 The driving force of capillary water; 4.3 Steady-state capillary rise; 4.4 Fluctutation of groundwater depth and soil moisture; 4.5 Rooting depth; 4.6 How to correct for capillary rise? 5 Irrigation Water Requirements: 5.1 Concept; 5.2 The Field; 5.3 The Distribution System; 5.4 The Conveyance System; 5.5 Calculating Irrigation Water Requirements. 6 Using the CRIWAR Software: 6.1 Introduction; 6.2 Computer System Requirements; 6.3 Obtaining the Software; 6.4 Software Overview; 6.5 Input Data Requirements; 6.7 Developikng a water management strategy; 6.8 Producing Output; 6.9 Program Options; 6.10 Warning and Error Messages.
Inhalt
1 Introduction: 1.1 Growth of vegetation; 1.2 Crop growth and evapotranspiration; 1.3 Irrigation water requirements; 1.4 The water balance of an irrigated field; 1.5 What does CRIWAR calculate? 1.6 ETp - Pe in the field water balance; 1.7 The irrigation ratios; 1.8 Structure of the Handbook. 2 Evapotranspiration: 2.1 Introduction; 2.2 Developments in Theory; 2.3 The Penman-Monteith Approach; 2.4 The Hargreaves-Samani Method; 2.5 Discussion; 2.6 The potential ET; 2.7 The Dual Kc Method: Incorporating Specific Wet Soil Effects; 2.8 ET during the Non-growing Season; 2.9 Evapotranspiration from Landscapes; 2.10 Estimating Kcfrom the fraction of Ground Cover; 2.11 Effects of Surface Mulching on Kc. 3 Effective Precipitation: 3.1 Introducton; 3.2 Major factors affecting effective precipitation; 3.3 The USDA Method. 4 Capillary Rise: 4.1 Introduction; 4.2 The driving force of capillary water; 4.3 Steady-state capillary rise; 4.4 Fluctutation of groundwater depth and soil moisture; 4.5 Rooting depth; 4.6 How to correct for capillary rise? 5 Irrigation Water Requirements: 5.1 Concept; 5.2 The Field; 5.3 The Distribution System; 5.4 The Conveyance System; 5.5 Calculating Irrigation Water Requirements. 6 Using the CRIWAR Software: 6.1 Introduction; 6.2 Computer System Requirements; 6.3 Obtaining the Software; 6.4 Software Overview; 6.5 Input Data Requirements; 6.7 Developikng a water management strategy; 6.8 Producing Output; 6.9 Program Options; 6.10 Warning and Error Messages.
