Figure 9.
A scatter plot presents data on organic content percentage, with the vertical axis labelled, organic content percent, ranging from zero to sixteen percent, and the horizontal axis labelled, sample number, ranging from zero to one hundred forty. Data points represent samples, with black circles indicating organic content below two percent and red circles showing organic content above two percent. A horizontal red line at the two percent mark serves as a threshold for organic soils, according to the standard Australian A S one seven two six two thousand seventeen. An arrow indicates the threshold line, while several annotations highlight the varying organic content percentages across samples, with numerous points clustering near the two percent line.Variation of organic content of all the tested samples (33 samples)