Question

Assume that, GPP Forest A = GPP Forest B = GPP Forest C, If Forest A has NPP = 1254 J/m²/day; Forest B, NPP = 2157 J/m²/day; and Forest C, NPP = 779 J/m²/day, which one of these forests has maximum energy loss by respiration? Give reason.

Answer 1

If GPP is equal, then we can manipulate the NPP equation and solve.

• NPP = GPP – Respiration of plants;
• Respiration of Plants = GPP − NPP.
• This means that the smallest NPP corresponds to the largest respiration. That is forest C.