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Table 2 Classification of soil P leaching risk in arid agricultural soils and paddy land soils (mg Olsen-P kg−1)

From: A tool (SPOLERC) to guide the evaluation of phosphorus leaching for agricultural soil by using the change point value in the Xingkai Lake Basin, China

Risk level No risk Low risk Medium risk High risk
Arid agricultural soils  ≤ 59.63 59.63 ~ 119.26 119.26 ~ 178.89  > 178.89
Paddy land soils  ≤ 35.35 35.35 ~ 70.70 70.70 ~ 106.05  > 106.05