GEOPIVO: simulation model for evaluating center pivot irrigation system performance

Revista Brasileira de Engenharia Agrícola e Ambiental

Martinez, Mauro A.²  Pruski, Fernando F.²  Silva, Demetrius D. da²  Rodrigues, Lineu N.¹ 

[1]University of Nebraska, Lincoln, USA

[2]UFV, Viçosa

关键词: precision agriculture;    runoff;    irrigation    INTRODUÇÃO Da área total irrigada no país;    em 39;    2% são utilizados sistemas de irrigação por aspersão (Christofidis;    1997);   

DOI  :  10.1590/S1415-43662001000300006

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

In precision agriculture thematic maps play an important role in the decision making process. When deciding how to vary the application rate inside the irrigated area, especially under precision irrigation, the identification of both areas with and without risk of runoff and the sprinkler droplet size distribution are of great importance. In this research, a computer model was developed based on the geographic information system concept. It can be used to make maps and to assist the user in varying the application rate inside the irrigated area. The results showed that the computer model can be used to represent the spatial and temporal variability of sprinkler pressure, the sprinkler droplet size, and the areas with and without risk of runoff, and also to help the user to redesign and to foresee runoff due to a change in the pivot or in the system management.

【 授权许可】

CC BY-NC