【摘要】 基于最小数据集（MDS）对桂西北油茶人工林主产区的土壤肥力质量进行评价，揭示了该区域土壤肥力状况的差异及其对油茶生长的影响，为油茶人工林的管理与土壤改良提供科学依据。通过采集不同地市的土壤样本并分析其土壤肥力指标，采用主成分分析法（PCA）构建肥力评价指标体系及其权重计算，发现pH值、有机质、全钾、碱解氮、有效锌和有效硼等指标在MDS中具有较高权重，能够有效反映土壤肥力状况。对比全数据集（TDS）与MDS下的土壤肥力质量指数，结果显示两者的排序总体一致，但部分区域存在细微差异。更多还原

【Abstract】 Soil fertility quality in the main production areas of Camellia oleifolia plantations in northwest Guangxi was evaluated based on the Minimum Data Set(MDS). This study revealed the regional differences in soil fertility and their effects on the growth of C. oleifera, which provided scientific basis for management and soil improvement of C. oleifolia plantations. Soil samples were collected from various cities and analyzed for their fertility indicators. Principal Component Analysis(PCA) was employed to construct a soil fertility evaluation index system and to calculate its weights.The findings showed that indicators such as pH, organic matter, total potassium, alkali-hydrolyzed nitrogen, available zinc, and available boron had higher weights in the MDS and could effectively reflect soil fertility status. A comparison of the soil fertility quality indices derived from the Total Data Set(TDS) and the MDS revealed generally consistent rankings, although minor discrepancies were observed in certain areas.更多还原