Answer:
[tex]NPP = 4\ kcal/m^2/yr[/tex]
Explanation:
Given
[tex]Gross\ Primary\ Productivity, GPP= 7\ kcal/m^2/yr[/tex]
[tex]Respiration, R= 3\ kcal/m^2/yr[/tex]
Required
Determine the Net Primary Productivity (NPP)
NPP is calculated as follows;
[tex]NPP = GPP - R[/tex]
Substitute values for GPP and R
[tex]NPP = 7\ kcal/m^2/yr - 3\ kcal/m^2/yr[/tex]
[tex]NPP = 4\ kcal/m^2/yr[/tex]
Hence, the Net Primary Productivity is [tex]4\ kcal/m^2/yr[/tex]
