Characteristics and calculation model of phreatic evaporation of sand-layered soil;

Characteristics of saline ions movement in sand-layered soil profiles under evaporation;

Water and salt transport in sand-layered soil underevaporation with the shallow under ground water table;

Considering the fact that most the soil profile assumes the sand-layered soil in field in XinJiang region in China.

Field experimental study of infiltration capacity of layer soil;

Maximum height of upward capillary water movement in layered soil;

Reviews on transport of water and salt in layered soil;

To fully explore the reason of finger flow and its change law,taking three kinds of soil,which is wildly distributed in northwest of China,as experiment material,the finger flow experiment of layered soil and homogeneous soil under the condition of sufficient water supply indoor is conducted in this paper.

The spatial distributions of soil hydraulic properties and soil water Variables in a stratified soil are described as random space functions,and three types of models of AR(1),MVAR (1),and NNM are adopted to generate realizations for saturated hydraulic conductivity, poresize distribution parameter and soilwater capacity.