Soil water repellency analysis considering the influence of brackish water
Soil water repellency refers to the property of soil surface forming water repellent,which is not easily absorbed and forms water droplets when encountering water.Soil water repellency has an important impact on water movement and soil water stability.In this study,a pot experiment was conducted with local groundwater irrigation as the control group to explore the effects of different ratios of brackish water and reclaimed water mixed irrigation on soil water salinity,water-soluble ions,soil organic matter,and soil water repellency.The results showed that the Na+and Cl-contents in the T2 and T3 treatments with added brackish water were significantly higher than CK,and the larger the proportion of brackish water,the more significant the differ-ence.The contents of Ca2+,K+,and Mg2+showed no obvious pattern with the increase of brackish water proportion.In addi-tion,with the increase of the proportion of brackish water,the TN content of the soil showed a downward trend overall,and the organic matter content showed an increasing trend first and then a decreasing trend.The research method of this study can provide a reference for other similar studies,and also provide new ideas and directions for scholars in related fields.
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