In general, litter with a C:N ratio greater than 30 leads to immobilization, lit
ID: 161064 • Letter: I
Question
In general, litter with a C:N ratio greater than 30 leads to immobilization, litter with a C:N ratio less than 20 leads to mineralization, and litter with a C:N ratio of 20—30 leads to a balance of immobilization and mineralization resulting in no net N production. If garlic mustard leaf litter collected on the forest floor had 43.2% C and 1.16% N, this tissue would lead to
A) immobilization.
B) mineralization.
C) a balance of immobilization and mineralization.
Answer: C
I want to know the reason. Thank you.
Explanation / Answer
C/N ratio = 43.2/1.16 = 37.24
37.24 >30
Here the answer should be immobilization as the C/N ratio is greater than 30.
It seems there is some problem with the answer key.