PFA

PFA


BDV3007 Soil Science Assignment #1 (Total marks: 20 marks X 5%) 1. Depending on the regions, the soil horizons can be variable. Based on your understanding and knowledge, assign the soil horizons in the picture below (Disclaimer: all pictures are credited to its owners). (4 marks) A B 2. Imagine you see a vacant brown field with grass in an old industrial area. A soil pit was dug, and you observe the following the horizons: 19-cm dark-colored rich organic loamy materials with nails and broken glass embedded; 32-cm of sandy loam with bits of red brick, glass, rusting metal pieces giving the layer a yellow-red color; 15-cm of dark brown silt loam material; 50-cm of light brown silty clay loam in the cracks between blocky chunks of soil material. Draw this profile in a diagram, with color and details per description, and label the 4 layers with horizons and sub-horizons letters to indicate your best interpretation at this site. (8 marks) Horizons Horizons 3. Describe the processes shaping the subaqueous soils (A) in the mangrove forest of Setiu Wetlands (B) as you see in the pictures below. Think about 4 main soil forming processes and provide specific examples of each process. (8 marks) A B