Research on the relation between salinization of soil and the shaft irrigation and drainage

According to the example of Xinjiang, based on the analysis of the forming and types of salinized soil and the reasons of soil salinization,the authors put forward that the main reasons which lead to salinization are climate,agrotype and man\|made factors.Taking the drainage areas of Talimu as successful examples,analysing the mechanism of salinization it is proved that the shaft irrigation and drainage are effective.Finally the authors put forward the composed irrigation way of shaft irrigation and drainage with bright trench drainage in order to utilize water resource in reason and improve enviroment.