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 "description": "This product provides soil capability classes for the agricultural region in Saskatchewan, as defined by the Canada Land Inventory (CLI). The CLI soil capability for agriculture classification system assigns each soil type to one of seven classes based on the degree of limitations affecting their agricultural use. Class 1 soils have no significant limitations to field crop production, while Class 7 soils have no capability for agriculture.  According to Agriculture and Agri-Food Canada (2009), Class 1\u20133 soils are considered suitable for the sustained production of common field crops; Class 4 soils are transitional and need conservation practices; Class 5 soils are suitable only for perennial forages; and Class 6 soils are suitable for grazing of natural vegetation only and improvement practices are not feasible.  A Decision Tree classification method with a boosting algorithm was used in spatially locating individual soil capability classes as estimated in the complex symbol of the CLI database.  The  input metrics used for  the  classification include the first four principal  components of  the  original Normalized Difference Vegetation Index  (NDVI)  derived  from  time-series Moderate Resolution Imaging Spectro-radiometer  (MODIS) 16-day composite data, as well as phenological  parameters, topographic  factors, land cover and spatial dependence images. Validation showed high  Kappa coefficients (0.88) for the mapped soil capability classes within homogeneous soil polygons and high R-squares (0.87-0.98) between  the  mapped  soil  area  and  CLI-estimated  area  within  heterogeneous  polygons.",
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 "copyrightText": "Correct citation: Li, Z., Huffman, T., Zhang, A., Zhou, F., McConkey, B., 2012, Spatially locating soil classes within complex soil polygons - Mapping soil capability for agriculture in Saskatchewan Canada. Agriculture, Ecosystems & Environment, 152(5): 59-67.",
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