If a plant has a rooting depth of 30 cm, how many cm of water are available to it (i.e. what is TPAW)? Use your volumetric PAW (thetav_PAW) calculated from the problem above. Write the following in the blanks The formula you used Your calculations (numbers inserted into the formula) TPAW, in cm, rounded to 1 decimal place (numbers only, no units please) Blanks 1&2 will be used for partial credit only if blank 3 is wrong.

Most of the H+ and Al3+ in soil are found in the soil solution.

Why are wetlands so important? Include 2 or more ecosystem services in your answer.

Write increases or decreases in the blanks below: Aggregation increases when clay content _______ and organic matter content _______ As aggregation increases, bulk density _______

Name 2 ways a farmer can improve soil tilth and/or structure in the long term.

A soil sample plus its cylinder weighed {sd} g dry. The cylinder holding the soil has a diameter of {d} cm, a height of {h} cm and a weight of {cy} g. Assume particle density is 2.65g/cm3. Calculate the bulk density of this soil, showing the correct units. Round your answer to the nearest 0.01 (2 decimal places). Show all of your work, including units, by uploading an attachment. When typing out cubic centimeters, use the format cm^3.

Do you have any other feedback? Please specify if your comment is intended for a particular instructor or TA.

In what type of climate would you expect to find salt-affected soils and why?

Which of the following is NOT a soil ecosystem service?

Use the textural triangle to determine the textural size class of these samples: (5 pts) a. 35% sand, 20% silt, 45% clay is _______ b. 20% silt and 10% clay is _______ d. Which of the soils above would likely have the highest bulk density? Write a or b in the blank. _______ e. Which soil would you expect to have the highest porosity? Write a or b in the blank _______