Problem: In this video, FURROW, Sarah Davies explains how to determine the soil profile by using a Dutch auger to extract the soil down in a core. The soil is wet and sticky, with vegetation at the top and dark brown at the bottom. As the profile moves down, it becomes lighter, with speckles of orange and grey. The soil is gritty and grinding, with stones and clay at the bottom. To record the soil profile, Clare Lawson draws a sketch and takes measurements. The clay is extremely sticky and clay-like, making it difficult to remove. The color changes significantly, with small bits of chalk or gravel underneath. Large pieces of gravel are also present, suggesting that the soil is transitioning from anoxic conditions to oxidizing conditions. The soil is mottled orange and grey, suggesting that it is rusting. Clare will continue to draw a sketch and take measurements to further understand the soil profile. In this field study, the soil profile is drawn and notes are made about the depth of color changes. The soil is analyzed by pulling out a complete block of clay, revealing small stone bits and grey grey within. The color changes are noted at 40 centimeters from the top and 68 centimeters down. The soil is categorized into brown, lighter brown, orange speckles, and paler clay. The color of the soil is measured by smearing a piece of soil on a book and comparing it to a Munsell colour chart. The core is elongated when removed, and the depth of the hole is calculated. Need Assignment Help?