Study on the Acidity Characteristics of Liaoning Cultivated Brown Soil

This paper uses the method of combining the field investigation and indoor analysis to study the features of acidity and the relation of soil acidity in Liaoning Province.The results show that there are differences in soil pH values in different areas in Liaoning.The results indicate that the overall soil pH in Wafangdian city is higher than that of other areas,and its variation range is relatively larger;the soil acidity of Qingyuan and Kuandian counties is lower than that in other areas,and it is smaller in range of variation,and in pH value concentration distribution;Shenyang soil pH coefficient of variation is the largest,which shows that the soil acidity change of Shenyang influence factor is more complicated.The impact of pH on cultivated brown soil,rainfall are influence factors of cultivated brown soil,soil leaching is strong,and the reduced soil pH is one of the major reasons for soil acidification.