Analysis on soil nutrients of different land utilization type in Guizhou Anshun Area

Soil nutrients of different land utilization type in Guizhou Anshun area were studied in this paper. The results showed that Guizhou Anshun area was slightly acidic with a lower pH. Soil nutrients of land utilization type had a significant difference，soil organic carbon，total nitrogen，total phosphorus and total potassium were presented a consistency rule with paddy field area> vegetable area > fruit area，while soil total phosphorus of different land utilization type had no significant difference. Soil available nutrients of different land utilization type had a significant difference and presented a consistency rule with paddy field area> vegetable area > fruit area. Spatial variation index of soil of total nutrients was higher than soil available nutrients，the soil total and available nutrients of different land utilization type in Guizhou Anshun area presented an obvious phenomenon of “surface accumulation”. Correlation analysis showed that the soil nutrients of different land utilization type in Guizhou Anshun area had a good linear positive correlation（P < 0.01），and soil total nutrients showed a certain correlation with soil available nutrients.