Characteristics Analysis and Evaluation of Soil Fertility in Xiong'an New District

The soils of Xiong'an New District were chosen as the research object, the characteristics of soil pH, EC, organic matter, texture, macro-nutrient and micro-nutrient were studied in 0-50 cm and 50-100 cm soil layers.The soil fertility quality was evaluated by the modified Nemoro synthesis index method, and the main obstacle factors affecting soil fertility quality of Xiong'an New District was discussed by the principal component analysis and correlation analysis.The results showed that the contents of soil organic matter, total nitrogen, available phosphorus, available potassium, available manganese and available zinc in 0-50 cm soil layer were significantly higher than those in 50-100 cm soil layer.The soil fertility quality was ″general″ level, the comprehensive index of soil fertility quality in 0-50 cm soil layer was significantly higher than that in 50-100 cm soil layer.The main obstacle factors affecting soil fertility quality in Xiong'an New Area were soil pH, organic matter, total nitrogen and texture.In summary, the soil fertility quality of the 0-50 cm soil layer in Xiong'an New District is better than that of the 50-100 cm soil layer.Therefore, the soil resources were collected and used according to the different soil layer.