Data sources of soil textures.

S1: Soil information from China, other regions of the world, and the Moon, including their locations, soil textures, specimen numbers, and data sources (references), is presented. S2: Data on grain size distribution for unimodal, bimodal, trimodal, and multimodal distributions are presented. S3: Grain size distribution data for soils from the earth. S4: Grain size distribution data for soils from the moon. S5: Matlab code for simulating soils from source areas.