The researchers studied how adding peat to Trinidadian soils affects their ability to conduct heat. They tested three types of soil with different levels of peat and compacted them at various moisture levels. They found that as peat content increased, the soil's ability to conduct heat decreased. The type of soil also affected heat conductivity, with clay soil having lower values than sandy loam. Compacting the soil changed how heat conducted through it, with higher compaction levels leading to different results. The researchers also found a relationship between heat conductivity and soil density, suggesting a way to predict density from experimental factors.