Modelo para avaliação de desempenho de sistemas de drenagem subterrânea e cálculo de espaçamento de drenos. Parte 1: desenvolvimento e análise de sensibilidade.

Abstract

A computer model (SIMDRENO) was developed in order to simulate the water table fluctuations and soil water contents in root zone as a function of daily precipitation data, evapotranspiration, soil physical-hydric parameters, crop parameters and geometry of drainage system. Crop yield response and relative yield estimation in a yearly base was possible by introducing the crop stress index in the model. The model also allows the user to select the best economical alternative for drainage system designs.