Simulation of dynamic water transport in peach in different soil types in the Loess Plateau

Dynamic water transport in peach was simulated using curve of soil water characteristic for different soil types, stomatal conductance model, canopy transpiration model and RC model in the Loess Plateau. It is shown that normal transpiration duration and total water lose by peach in different soils are: medium loam＞light loam＞compact sand＞heavy loam with gradual drought spell. Medium loam has the highest water preserving capability in creeping drought conditions and heavy loam has the least effective water, while the maximum peach transpiration duration is in the medium loam. There are, however, no observable differences in medium loam, light loam and compact sand. Stomatal conductance, leaf water potential and organic water storage exibit fluctuant decreasing trend in creeping drought periods similar to that of soil water potential.