雄安新区土壤肥力特征分析与评价

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

  • 摘要: 以雄安新区土壤为研究对象,分析研究0—50、50—100 cm土层土壤pH、EC、有机质、质地、大量营养元素及主要中微量元素的特征差异,采用修正的内梅罗综合指数法评价土壤肥力质量,并基于主成分分析和相关性分析探讨影响雄安新区土壤质量的主要障碍因子。结果表明,0—50 cm土层土壤有机质、全氮、有效磷、速效钾、有效锰和有效锌含量均显著高于50—100 cm土层;土壤肥力质量均属“一般”水平,0—50 cm土层土壤肥力质量综合指数显著高于50—100 cm土层;影响雄安新区土壤肥力质量的主要障碍因子为土壤pH、有机质、全氮和质地。综合而言,雄安新区0—50 cm土层土壤肥力质量较50—100 cm土层好,开发过程中对土壤应进行分层收集利用。

     

    Abstract: 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.

     

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