The impact of the projected climate change on soil water is an important and relevant issue for planning rural activities. The objective of this study was to simulate the fraction of transpirable soil water (FTSW) in wheat, soybean and maize agroecosystems under climate change scenarios in Santa Maria, RS. Air temperature and rainfall were modified to generate climate change scenarios. FTSW was simulated with models available in the literature. The results showed that an increase in air temperature decreases FTSW and this decrease is more evident in soybean and maize than in wheat agroecosystems.
Triticum aestivum; Glycine max; Zea mays; global warming; soil water budget
