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本文选取pH、有机质、全氮、全磷、全钾、有效磷、速效钾、碱解氮构成河北省农地土壤肥力评价指标;并采用层次分析法确定土壤肥力评价指标的权重,运用模糊数学法对河北农地土壤肥力进行了综合评价。经与第二次土壤普查比较,研究发现:土壤pH值较高,有机质、全氮、碱解氮含量中等偏上,全磷、有效磷、全钾、速效钾含量较高,速效钾含量呈下降趋势;河北农地土壤肥力综合隶属度在0.739～0.862之间,其中唐山、衡水、石家庄、邯郸土壤综合肥力较高,廊坊、邢台土壤综合肥力有待提高。
In this paper, soil organic matter, total nitrogen, total phosphorus, total potassium, available phosphorus, available potassium, and alkali hydrolyzable nitrogen were selected to evaluate soil fertility of agricultural land in Hebei Province. The analytic hierarchy process was used to determine the weight of soil fertility evaluation index. Law of Hebei Province, a comprehensive assessment of soil fertility. Compared with the second soil survey, the results showed that the content of soil organic matter, total nitrogen and available nitrogen were middle to upper part, total phosphorus, available phosphorus, total potassium and available potassium, while available potassium was The comprehensive affiliation of soil fertility in Hebei farmland ranged from 0.739 to 0.862, of which, the comprehensive fertility of soil in Tangshan, Hengshui, Shijiazhuang and Handan was higher than that of the other two soils. The comprehensive fertility of soil in Langfang and Xingtai should be improved.