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对博尔塔拉河、精河流域绿洲土壤的理化性状进行了分析,认为该区土壤肥力整体水平并不高,并且较20a前普遍有所下降。之后,用Kriging进行插值,对研究区土壤综合肥力分布的规律进行了研究,结果表明,东南方向上土壤的综合肥力较高,西北方向上土壤的综合肥力较低。然后,利用灰色方法找寻了导致研究区土壤异质性的驱动因子,年蒸发量与灾害性天气日数是首要的自然驱动力,耕地面积和化肥施用量则是人文驱动力,并且以人文因素驱动作用占主导。
The physical and chemical properties of oasis soil in Bortala River and Jinghe River Basin were analyzed. The overall soil fertility in this area was not high, and generally declined compared with that before 20a. Kriging was used to interpolate the distribution of soil fertility in the study area. The results showed that the comprehensive fertility of soil in the southeast direction was high, and the comprehensive fertility of soil in the northwest direction was low. Then, using the gray method to find out the driving factors leading to soil heterogeneity in the study area, annual evaporation and disastrous weather days are the primary natural driving forces. The cultivated area and the chemical fertilizer application are the humanistic driving forces and driven by human factors The role of dominant.