Scatter Plot Graphs

A scatter diagram visually displays the relationship between the two chosen soil quality indicators.

A positive upward relationship occurs when data points with higher values on the horizontal (x-axis) correspond to higher values on the vertical (y-axis).

A negative downward relationship occurs when data points with higher values on the horizontal (x-axis) correspond to lower values on the vertical (y-axis).

If the data points are scattered with no obvious trend then there is no simple relationship between the two soil quality indicators.

Clay Content relates to ...
Total Organic Carbon relates to ...
Microbial Biomass C relates to ...