SoilGrids

SoilGrids1km provide an initial set of examples of soil spatial data for input into global models at a resolution and consistency not previously available. Some of the main limitations of the current version of SoilGrids1km are: (1) weak relationships between soil properties/classes and explanatory variables due to scale mismatches, (2) difficulty to obtain covariates that capture soil forming factors, (3) low sampling density and spatial clustering of soil profile locations. However, as the SoilGrids system is highly automated and flexible, increasingly accurate predictions can be generated as new input data become available. SoilGrids1km are available for download via http://soilgrids.org under a Creative Commons Non Commercial license.1公里土壤网格数据集（SoilGrids1km）提供了首批土壤空间数据样本，可作为全球模型的输入数据源，其分辨率与数据一致性均达到了前所未有的水平。当前版本的SoilGrids1km存在以下主要局限：(1) 因尺度不匹配导致土壤属性/类别与解释变量之间的关联强度较弱；(2) 难以获取能够表征土壤形成因子的协变量；(3) 土壤剖面点位的采样密度偏低且存在空间聚类现象。不过，由于SoilGrids系统具备高度自动化与灵活性特征，随着新输入数据的不断补充，可生成精度逐步提升的土壤预测结果。用户可通过 http://soilgrids.org 下载SoilGrids1km，其使用需遵循知识共享非商业许可协议。

搜集汇总

背景与挑战

背景概述

SoilGrids是一个提供全球土壤空间数据的数据集，主要用于模型输入，其数据可通过soilgrids.org网站下载，遵循知识共享非商业许可。该数据集具有自动化和灵活的特点，能够随着新输入数据的增加而生成更准确的预测。