NATCITIES-24060685 Supplementary Information Section B: Orthogonal Contrasting

This document contains Supplementary Information (Section B) for manuscript the NATCITIES-24060685, in which the methodology for the statistical analysis, orthogonal contrasting, is explained.Three types of tabs are provided.<br><br>In the "results" tab, information regarding the degrees of freedom, F-value, t-ratio and p-value are available for the ANOVA and the contrasts.<br>In the "key" tab, the categorical explanatory variables used in the analysis are named the first couple of columns. In the following columns a number inside a row dictates that those explanatory variables are being compared. In the top row these comparisons are given an individual name for later interpretation.<br>The "contrasts" tab, looks similar to the key tab, but without the categorical explanatory variables named in the first columns. This is the exact tab used in conducting the analysis. <br><b>Abbreviations</b>:<i>Soil material</i>M - Munich soilA - Augsburg soil<i>Treatments</i>disp - dispersed particle size distribution of subsoil (used only in mean weight diameter contrast)<br>excav - excavated subsoil prior to incubation (used only in mean weight diameter contrast)sub - subsoil onlygwc - 4% green waste compost substrate mixturegac - 2% granulated activated carbon + 2% green waste compost substrate mixturegb1 - 2% WW|850+ 2% green waste compost substrate mixturegb2 - 2% GW|680+ 2% green waste compost substrate mixturegb3 - 2% WW|540+ 2% green waste compost substrate mixtureg12 - 1% WW|850 + 1% GW|680+ 2% green waste compost substrate mixtureg13 - 1% WW|850 + 1% WW|540+ 2% green waste compost substrate mixtureg23 -1% GW|680 + 1% WW|540 + 2% green waste compost substrate mixture<br><br>In this study, we evaluate two wood-waste (WW) biochars (high and low temperature; WW|850 and WW|540) and one green-waste (GW) biochar (GW|680) in our constructed soil mixtures for soil ecosystem functions, comparing the various combinations with a manufactured pollutant-adsorption benchmark, granulated activated carbon (GAC) and a low-cost option of utilizing only municipal green waste compost.