Preface1 Introduction2 Weather and Energy Balance3 Physiological Processes4 Stand Structure and Dynamics5 The Carbon Balance of Trees and Stands6 Nutrient Dynamics and Tree Growth7 Hydrology and Plant Water Relations8 Modelling tree growth: concepts and review9 The 3-PG Process-Based Model10 Future developmentsAppendix 1 Determining solar direction and radiationAppendix 2 Some mathematical details of 3 PGAppendix 3 Further readingReferences