This category covers how ecosystems generate and use energy, focusing on Gross Primary Productivity and Net Primary Productivity.
Tropical rainforests have the highest net primary productivity due to their high biodiversity, warm climate, and abundant rainfall.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Gross primary productivity (GPP) is the total biomass or organic matter produced by plants through photosynthesis.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Primary productivity varies across ecosystems and is influenced by factors such as sunlight, nutrient availability, and temperature.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
NPP is always less than GPP because it accounts for the energy lost through respiration.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Tropical rainforests have the highest net primary productivity due to high temperatures, abundant rainfall, and dense vegetation.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Despite covering 70% of the Earth's surface, oceans have low productivity due to limited nutrient availability in deeper waters.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Estuarine ecosystems are highly productive due to abundant nutrients and sufficient sunlight for photosynthesis.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Deserts have the lowest net primary productivity due to limited water availability and extreme climatic conditions.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Net Primary Productivity (NPP) is the energy available to consumers after subtracting respiration losses from Gross Primary Productivity (GPP).
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Despite their vast area, oceans have low productivity due to the limited availability of essential nutrients in deep waters.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Net Primary Productivity (NPP) is the amount of energy left after plants use some for respiration (R), calculated as NPP = GPP - R.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
NPP is always less than GPP because it accounts for the energy lost through respiration.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
