Data for generating statistical maps of soil lithium concentrations in the conterminous United States

The product data are six statistics that were estimated for the chemical concentration of lithium in the soil C horizon of the conterminous United States. The estimates are made at 9998 locations that are uniformly distributed across the conterminous United States. The six statistics are the mean for the isometric log-ratio transform of the concentrations, the equivalent mean for the concentrations, the standard deviation for the isometric log-ratio transform of the concentrations, the probability of exceeding a concentration of 55 milligrams per kilogram, the 0.95 quantile for the isometric log-ratio transform of the concentrations, and the equivalent 0.95 quantile for the concentrations. Each statistic may be used to generate a statistical map that shows an attribute of the distribution of lithium concentration.

本数据集包含针对美国本土（conterminous United States）土壤C层（soil C horizon）中锂化学浓度估算得到的六个统计量，所有估算均基于均匀分布于该区域的9998个采样点位完成。六个统计量分别为：浓度的等距对数比变换（isometric log-ratio transform）均值、浓度的等效均值、浓度的等距对数比变换标准差、浓度超过55毫克/千克的概率、浓度的等距对数比变换0.95分位数，以及浓度的等效0.95分位数。每个统计量均可用于生成一幅统计地图，用以展示锂浓度分布的某一属性特征。