Ecosystem — Chapter Summary

An ecosystem is formed by interaction

An ecosystem is formed by interaction between biotic and abiotic components. Species composition and stratification are important structural features.

Ecosystems are broadly of two types

Ecosystems are broadly of two types: terrestrial and aquatic. Forest, grassland and desert are terrestrial ecosystems. Pond, lake, wetland, river and

Primary productivity is the amount

Primary productivity is the amount of biomass or organic matter produced per unit area per unit time by plants during photosynthesis. It depends on pl

Gross primary productivity is the total

Gross primary productivity is the total organic matter produced during photosynthesis. Net primary productivity is the remaining biomass after respira

Less than 50 per cent

Less than 50 per cent of incident solar radiation is photosynthetically active radiation. Plants capture only 2-10 per cent of PAR for photosynthesis,