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探讨了土壤质量时空变化一体化的评价方法 ,并以河北省曲周县一个 3 3km2 的小区为例 ,对 1980年与 1999年两个时段的 8个单项土壤质量指标和土壤综合质量指标的时空变化进行了定量化评价。结果表明土壤质量指数法与GIS技术相结合 ,可以很好地表示土壤质量的时空变化。文章还讨论了该方法的适用范围。
In this paper, the assessment method of spatial and temporal change of soil quality was discussed. Taking a 3 3 km 2 plot in Quzhou County, Hebei Province as an example, the spatial and temporal variations of soil quality and spatial quality of eight individual soil quality indicators and soil comprehensive quality indicators in 1980 and 1999 were studied. The changes have been quantitatively evaluated. The results show that the combination of soil quality index and GIS technology can well represent the temporal and spatial variation of soil quality. The article also discusses the scope of application of the method.