土壤重金属分析常用空间插值法研究进展

Review on Common Spatial Interpolation Methods for Soil Heavy Metal Analysis

空间插值法作为空间预测和绘图的重要方法,在土壤重金属污染和环境科学等领域广泛使用,其插值性能和插值精度受到广泛关注。空间插值方法在对研究区进行空间分析或绘图时插值性能受到很多因素的影响,这些因素随着插值变量或研究区的不同而产生不同的影响。该研究通过分析近20年土壤重金属空间分析比较研究的相关文献,将目前土壤重金属空间分析常用的插值方法分为3类:地统计学插值法、非地统计学插值法和组合插值法,讨论并总结常用空间插值法的插值特征及插值性能的主要影响因素。最后结合空间插值方法的特征和影响因素得到关于土壤重金属空间插值方法的选择原则。通过比较土壤重金属空间分析常用插值方法的特点,为特定研究区或数据选择合适插值方法提供参考。

Spatial interpolation is widely used in soil heavy metal space research and mapping, its performance and accuracy have received extensive attention. Spatial interpolation methods performance is affected by many factors, and these influencing factors have different effects depending on the interpolation variables. The spatial interpolation analysis of soil heavy metals in the past 20 years are compared, and the interpolation methods commonly used in soil heavy metals are divided into three categories, including geo-statistical interpolation, non-geostatic interpolation, and combined interpolation. The interpolation characteristics and the main influencing factors of the interpolation methods are discussed and summarized. Finally, the selection principle of spatial interpolation method is obtained by combining the characteristics and influencing factors of spatial interpolation method.