The PROtotype Biomass and Evaporation (PROBE) model was developed for simulation of daily plant growth and evaporation (E) rates in natural, vegetated ecosystems (Maas et al., 1992). The inputs to the model are basic meteorological information and periodic (weekly or bi-weekly) measurements of green leaf area index (GLAI) and E. The model uses an interactive approach with two submodels - a vegetation growth (VG) submodel and soil water balance (SWB) submodel - where the estimate of GLAI from the VG submodel is used in the SWB submodel to calculate E. In turn, the estimate of E is used in a rerun of the VG submodel to refine the estimate of GLAI. This model was tested based on meteorological data and measurements of GLAI and E acquired in a cotton (Gossypium hirsutum L.) field in central Arizona. Overall, the modelled and measured values of GLAI and E corresponded well. Results showed that the time and precision of input data were very important to obtaining accurate estimates of GLAI and E. The model showed promise for use in scheduling crop irrigations.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.