Introduction
The supplement contains:
a list of all script and data files used in the study; these files are
supplied separately through
https://datastore.landcareresearch.co.nz/dataset/jgr-soilformingfactors;
all supplementary figures referenced in the main text.
Additional files supplied separately
BanksP_chemistry.R
R code for Figure 2 using the data in ‘BanksP_lab_paper.xlsx’
BanksP_mixing.R
R code for performing Bayesian mixing model using the following input
files: ‘mixdata_reduced.csv’, ‘pm_reduced_means.csv’, ‘discr.csv’;
analysis produces output files ‘diagnostics.txt’,
‘summary_statistics.txt’, ‘BP_model_1.txt’ that were summarized to
create ‘mixing_results.xlsx’;
Data from ‘mixing_results.xlsx’ and ‘BanksP_lab_paper.xlsx’ was used
to create Figure 4 and 5
BanksP_FTIR.R
R code for statistical analysis of FTIR based on FTIR data in
‘MIR_Banks_spectra_abs_ID.csv’;
used to create Figure 3
BanksP_pm.R
R code for visualizing parent material and immobile element data in
Figure S1 and S3, using data from ‘BanksP_lab_paper.xlsx’ and
‘pm_paper.xlsx’
BanksP_var.R
R code for variation partitioning using
‘MIR_Banks_spectra_abs_ID.csv’, ‘mixing_results.xlsx’ and
‘BanksP_lab_paper.xlsx’ as input data; output of analysis is used for
Figure S2
- List of data files (soil data, parent material data, input and output
files related to statistical and mixing modelling):
- ‘BanksP_lab_paper.xlsx’ – site and soil analytical data, including
pXRF data
- ‘MIR_Banks_spectra_abs_ID.csv’ – FTIR absorbance data for soil
sites; note that sample LAB_ID = “M185028” was accidentally not
scanned
- ‘pm_paper.xlsx’ – parent material data from external references
- ‘mixdata_reduced.csv’ – input data for Bayesian mixing model derived
from ‘BanksP_lab_paper.xlsx’
- ‘pm_reduced_means.csv’ – input data for Bayesian mixing model
derived from ‘pm_paper.xlsx’
- ‘discr.csv’ – input file for Bayesian mixing model
- ‘diagnostics.txt’,
‘summary_statistics.txt’, ‘BP_model_1.txt’ – output files of
Bayesian mixing model
- ‘mixing_results.xlsx’ – summary of Bayesian mixing model results
used for further analysis
Supplementary figures referenced in the main text