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  • Smap Predicted Carbon August 2020

    Manaaki Whenua – Landcare Research
    Spatial surface estimates of soil carbon stock (units tonnes per hectare) for the 0–30cm layer, over the land surface of New Zealand, based on a generalised linear regression model using environmental classification, national soil layer, and climate layers as explanatory variables, with a correction for spatial auto correlation of data samples. Estimates...
    Created 10 October 2020 Updated 10 September 2021
  • Smap Predicted pH August 2020

    Manaaki Whenua – Landcare Research
    Estimates of soil pH, as measured in a 1:5 water solution, for the 0 – 7.5 cm depth interval. The values of this layer represent estimates for the centre of a 100 m x 100 m (1 ha) grid covering all of New Zealand, with the exception of areas that do not have soils. The layer was generated using a 3 dimensional quantile regression forest model, that...
    Created 11 November 2020 Updated 10 September 2021