Physical Soil Disturbance Effects On Soil pH In The Greater Vancouver Area


  • F. Flores
  • T. Huynh
  • K. Saller
  • M. Zhu


As human settlement is expanding, and agricultural practices are becoming increasingly
detrimental to the soil to cope with the increasing demand of food, it’s important to understand
the impact of physical disturbance on soil. Soil pH level varies across a landscape and is
dependent on microbial and fungal content, as well as the type of disturbance it experiences. This
study investigates the relationship between soil pH level and its physical disturbance, and
hypothesizes an increase in soil acidification as soil disturbance increases. Across the Greater
Vancouver Area, Canada, 48 soil samples were obtained from four different classes of soil
disturbance, whereby the pH of each soil sample was recorded with chemical pH test kits.
Following this, a one-way ANOVA test was carried out to assess the means between different
soil classes, resulting in a p value of 0.054. As a consequence, it was concluded that the means
were not statistically significant, thus failing to reject the null hypothesis. However, as the pvalue
indicated that the means were not statistically different, it was concluded that the
experiment needs to be replicated with a larger sample size to obtain a clearer interpretation of
the results.