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本文采用模糊数学和经典数学的聚类分析方法,对兴隆山林区13个主要土属进行了土壤质量的数值评价。结果,林区土壤质量依土壤有机质、全氮、全磷、速效磷、碳酸钙、pH、海拔、坡度、土层厚度等指标可划为三级:一级土壤质量高,土壤为中基性和混合岩性淋溶灰褐土;二级土壤质量中等,土壤为高山草甸土、亚高山草甸土和典型灰褐土;三级土壤质量较低,土壤为粟钙土和石灰性灰褐土。
In this paper, fuzzy mathematics and classical mathematical clustering analysis methods were used to evaluate the soil quality of thirteen main soils in Xinglongshan forest area. As a result, the soil quality in forest area can be classified into three levels according to the indexes of soil organic matter, total nitrogen, total phosphorus, available phosphorus, calcium carbonate, pH, elevation, slope, soil thickness, And mixed lithology leached gray cinnamon soil; the secondary soil quality is medium, the soil is the alpine meadow soil, the subalpine meadow soil and the typical gray cinnamon soil; the third soil quality is low, the soil is the calcareous soil and the lime gray soil Cinnamon.