不同土壤类型有效磷含量。不同土壤类型有效磷含量差异较小，含量都很高，但

Different soil types available phosphorus content. The difference in available phosphorus content in different soil types is small, and the content is very high, but the variation is very large. The available phosphorus content in the Chao soil is the highest, with an average of 40.61mg/kg, the variation range is 3.0~154mg/kg, the standard deviation is 27.2mg/kg, and the coefficient of variation is 67.66%; the average effective forest of brown soil is 36.85mg/kg, the variation Range 2.4~335.1mg/kg, great variation, standard deviation 27.02mg/kg, coefficient of variation 73.32%

The effective phosphorus content of different soil types. The effective phosphorus content of different soil types is small and high, but the variation is very large. Tidal soil has the highest effective phosphorus content, with an average of 40.61mg/kg, change of 3.0 to 154mg/kg, standard deviation of 27.2mg/kg, coefficient of variation of 67.66%, and brown soil with an average effective forcomparedum of 36.85mg/kg, change rate 2.4 to 335.1mg/kg, with a large variation of 27.02mg/kg, 37.22%

The content of available phosphorus in different soil types. The content of available phosphorus in different soil types had little difference, and the content was very high, but the range was very large. The content of available phosphorus in fluvo aquic soil was the highest, with an average of 40.61mg/kg, the range of variation was 3.0-154mg/kg, the standard deviation was 27.2mg/kg, and the coefficient of variation was 67.66%; the average effective phosphorus content of brown soil was 36.85mg/kg, with a range of 2.4-335.1mg/kg, with a large range, the standard deviation was 27.02mg/kg, and the coefficient of variation was 73.32%<br>