The look-up table LUT_DRAINAGE from AusPlots Rangelands.
Drainage describes local soil wetness conditions, and is affected by both internal and external attributes (that may act separately or together). Internal attributes include soil structure, texture, porosity, hydraulic conductivity and water-holding capacity, while external attributes are source and quality of water, evapotranspiration, gradient and length of slope, and position in the landscape.
White, A, Sparrow, B., Leitch, E., Foulkes, J., Flitton, R., Lowe, A.J., Caddy-Retalic, S. (2012). AusPlots Rangelands Survey Protocols Manual. Version 1.2.9 page 47. Terrestrial Ecosystem Research Network and The University of Adelaide Press. https://doi.org/10.25901/5f2ca309cc9c2
TERN is supported by the Australian Government through the National Collaborative Research Infrastructure Strategy, NCRIS.