Biomass productivity

Productivity generally means production per unit areas. Biomass productivity means biomasses production per unit of areas per unit time. 
Two types of biomass productivity: 

  • Primary productivity
  • Secondary Productivity

Primary productivity: 
Primary productivity is done by plants(via photosynthesis or chemosynthesis). Further, it is divided into two parts: 

  • Gross Primary productivity: Total productivity done by plats for consumption and storage. 
  • Net Primary Productivity: The energy that is available for the primary consumer is called net primary productivity. 
    • Some energy is being lost by respiration and other activities. 
    • Net primary productivity= Gross primary productivity -  respiratory loss 

Secondary productivity: 
Secondary productivity is done by heterotrophs or at the consumer level. Secondary productivity comes from primary productivity and it is just storage level at the consumer level. 

Decreasing order of productivity of different ecosystem: 

  • Tropical rain forest 
  • Estuaries 
  • Swamp/ Wetland
  • Coral reef 
  • Tropical Deciduous forest
  • Temperate Deciduous forest
  • Temperate coniferous forest
  • Savana
  • Grassland
  • Open Ocean
  • Tundra
  • Desert

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