【摘要】 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。更多还原

【Abstract】 The quantitative evaluation of soil quality of 13 main genera was conducted by using the computer technique, dim and classical mathematics, The results indicated that the soils of forest area could be divided into three grades according to the indices of organic matter, total N, total P, available P, CaCO₃ contents, pH, elevation, slope and layer thickness etc. The first one was eluvial grey-cinnamonic soil of neutral basic and mixed rocks, the second was higher, sub-higher mounain meadow soils and typical grey-cinnamonic soil, and the third was chestnut soil and calcareous grey-cinnamonic soil, and their qualities graduated from the first to the third.更多还原