A China soil characteristics dataset(2010)


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.


Data file naming and use method

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


Required Data Citation View Data Cite Help About Data Citation
Citations

1. Shangguan, W., Dai, Y., Liu, B., Ye, A., and Yuan, H., (2012). A soil particle-size distribution dataset for regional land and climate modelling in China, Geoderma, 171-172, 85-91.( View Details)

Cite the data

SHANGGUAN Wei. A China soil characteristics dataset(2010). National Tibetan Plateau Data Center, 2019. (Download the reference: RIS | Bibtex )

Using this data, you must reference article references listed in the Required Data Citation and reference data


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

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Example of acknowledgement statement is included below: The data set is provided by National Tibetan Plateau Data Center (http://data.tpdc.ac.cn).


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


Related Resources

1. 2019-07-05 兰州大学 田杰 Usage:祁连山多尺度水文研究

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Keywords
Geographic coverage
Spatial coverage

East: 135.50

South: 17.80

West: 73.20

North: 53.90

Detail
  • Spatial resolution: km
  • File size: 993.0 MB
  • Browse count: 337 Times
  • Download count: 25 Times
  • Share mode: online
  • Temporal coverage: 2010
  • Updated time: 2019-08-09
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Contact Information
: SHANGGUAN Wei  

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

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