This layer shows soil acidity, based on Kalimantan RePPProT data (1990, 1:250,000 scale). This data was provided and processed by Daemeter Consulting and was prepared by the World Resources Institute for use in the Suitability Mapper (2012). Data separated into categories of acidity: excessively acid (<4.0); extremely acid (4.0-4.5); very strongly acid (4.6-5.0); strongly acid (5.1-5.5); moderately acid (5.6-6.0); slightly acid (6.1-6.5); neutral (6.6-7.3).