ABSTRACT
CHAPTER 17 The SPAW Model for Agricultural Field and Pond Hydrologic
Simulation
Keith E. Saxton and Patrick H. Willey The SPAW (Soil-Plant-Air-Water) computer model simulates the daily
hydrologic water budgets of agricultural landscapes by two connected routines, one for farm fields and a second for impoundments such as wetland ponds, lagoons, or reservoirs. Climate, soil, and vegetation data files for field and pond projects are selected from those prepared and stored with a system of interactive screens. Various combinations of the data files readily represent multiple landscape and ponding variations.
