ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
60, 000 kcal/m2/yr
|
|
|
115, 000 kcal/m2/yr
|
|
|
175, 000 kcal/m2/yr
|
|
|
290, 000 kcal/m2/yr
|
Detailed explanation-1: -The net primary production of a pine forest on a lava flow on Mount Fuji is about 175, 000 kcal/m2/yr, and the plant respiration is estimated to be 115, 000 kcal/m2/yr .
Detailed explanation-2: -In terrestrial systems, NPP is often calculated by determining the annual carbon storage increment. Therefore, using the biomass and carbon storage estimates from your sample site, you can calculate aboveground NPP (sometimes referred to as ANPP) by taking the difference in carbon storage between years.
Detailed explanation-3: -o Net primary productivity (NPP) is the rate at which producers use photosynthesis to produce and store chemical energy minus the rate at which they use some of this stored energy through aerobic respiration.
Detailed explanation-4: -Primary producers-including bacteria, phytoplankton, and algae-form the lowest trophic level, the base of the aquatic food web.