A China soil characteristics dataset（2010）- A Big Earth Data Platform for Three Poles

A multi-layer soil particle-size distribution dataset (sand, silt and clay content), based on USDA (United States Department of Agriculture) standard for regional land and climate modelling in China. was developed The 1:1,000,000 scale soil map of China and 8595 soil profiles from the Second National Soil Survey served as the starting point for this work. We reclassified the inconsistent soil profiles into the proper soil type of the map as much as possible because the soil classification names of the map units and profiles were not quite the same.

The sand, silt and clay maps were derived using the polygon linkage method, which linked soil profiles and map polygons considering the distance between them, the sample sizes of the profiles, and soil classification information. For comparison, a soil type linkage was also generated by linking the map units and soil profiles with the same soil type. The quality of the derived soil fractions was reliable. Overall, the map polygon linkage offered better results than the soil type linkage or the Harmonized World Soil Database. The dataset, with a 1-km resolution, can be applied to land and climate modelling at a regional scale.

Data characteristics：

projection：projection

Coverage: China

Resolution: 0.00833 (about 1 km)

Data format: FLT, TIFF

Value range: 0%-100%

Document describing：

Floating point raster files include:

Sand1. FLT, clay1. FLT -- surface (0-30cm) sand, clay content.

Sand2. FLT, clay2. FLT -- content of sand and clay in the bottom layer (30-100cm).

PSD. HDR -- header file:

Ncols - the number of columns

Nrows- rows

Xllcorner - latitude in the lower left corner

Yllcorner - longitude of the lower left corner

Cellsize - cellsize

NODATA_value - a null value

byteorder - LSBFIRST, Least Significant Bit First

TIFF raster files include:

Sand1. Tif, clay1. Tif - surface (0-30cm) sand, clay content.

Sand2. Tif, clay2. Tif - bottom layer (30-100cm) sand, clay content.

File naming and required software

clay1、clay2、 sand1、sand2
Raster data can be opened with arcgis and other software

Data Citations Data citation guideline What's data citation?

Cite as:

Shangguan, W., Dai, Y. (2019). A China soil characteristics dataset（2010）. A Big Earth Data Platform for Three Poles, DOI: 10.11888/Soil.tpdc.270466. CSTR: 18406.11.Soil.tpdc.270466. (Download the reference： RIS | Bibtex )

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

References literature

1.Batjes, N.H., (2003). A taxotransfer rule-based approach for filling gaps in measured data in primary SOTER databases (ver. 1.1; GEFSOC Project). Technical Report 2003/03, ISRC-World Soil Information, Wageningen (View Details )

2.FAO, IIASA, ISRIC, ISS-CAS, JRC, (2009). Harmonized World Soil Database (version1.1). FAO, Rome, Italy and IIASA, Laxenburg, Austia. (View Details )

3.Reynolds, C. A., Jackson, T. J., Rawls, W. J., (2000). Estimating soil water-holding capacities by linking the Food Agriculture Organization soil map of the world with global pedon databases, continuous pedotransfer functions. Water Resour. Res. 36, 3653-3662. (View Details )

Support Program

Pan-Third Pole Environment Study for a Green Silk Road-A CAS Strategic Priority A Program (No:XDA20000000)

Copyright & License

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)