Li B G, Cao J, Liu W X, Shen W R, Wang X J, Tao S
College of Environmental Sciences, MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.
Environ Pollut. 2006 Aug;142(3):567-75. doi: 10.1016/j.envpol.2005.10.039. Epub 2005 Dec 15.
A previously published data set of HCH isomer concentrations in topsoil samples from Tianjin, China, was subjected to geospatial analysis. Semivariograms were calculated and modeled using geostatistical techniques. Parameters of semivariogram models were analyzed and compared for four HCH isomers. Two-dimensional ordinary block kriging was applied to HCH isomers data set for mapping purposes. Dot maps and gray-scaled raster maps of HCH concentrations were presented based on kriging results. The appropriateness of the kriging procedure for mapping purposes was evaluated based on the kriging errors and kriging variances. It was found that ordinary block kriging can be applied to interpolate HCH concentrations in Tianjin topsoil with acceptable accuracy for mapping purposes.
对之前发表的来自中国天津表层土壤样本中六氯环己烷异构体浓度的数据集进行了地理空间分析。使用地质统计技术计算并模拟了半变异函数。分析并比较了四种六氯环己烷异构体的半变异函数模型参数。将二维普通块克里金法应用于六氯环己烷异构体数据集以进行制图。基于克里金法结果绘制了六氯环己烷浓度的点图和灰度栅格图。根据克里金法误差和克里金法方差评估了用于制图目的的克里金法程序的适用性。结果发现，普通块克里金法可用于以可接受的精度内插天津表层土壤中的六氯环己烷浓度以用于制图目的。
