The water supplying power of soil to crop roots depends on its physical properties. These properties are described by the hydraulic conductivity-matric potential-moisture content relationships. Without dynamic analysis of soil water movement，it is difficult to predict intuitively the effects of these physical properties on crops. In this study, 3 indices were defined: hydraulic conductivity index (K^^-), water retentivity index (Θ) and responsivity index (K^^-/Θ) of soil. Using these indices, the effect of the water supplying power of soil on soil water movement and crown potential of crop were estimated. It is proved by numerical analysis that these indices are useful in estimating intuitively the water supplying power of soil to crops.
Mendeley出力
