Natural Resource Categories
The MIPS method can be used to measure natural resource consumption in five categories, viz. abiotic and biotic resources, earth movements in agriculture and silviculture, water and air. Abiotic resources refer to non-renewable resources like minerals, fossil energy sources and soil excavations. Biotic resources refer to renewable resources like plant biomass. Earth movements include mechanical movements and erosion. Water includes surface, ground and deep ground water used by humans. Air is calculated when it is used in combustion processes or chemically or physically transformed. The concept of total material requirement (TMR) used in many cases used in macro-level statistics and it refers to sum of abiotic and biotic resources and erosion.
Read more about this topic: Material Input Per Service Unit
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