The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is reffered as:
Climax
Climax community
Standing state
Standing crop
Standing state is amount of inorganic nutrients found in an ecosystem. It represents part of non-living matter. It circulates between living and non-living components of the ecosystem. It is being regularly depleted and replenished by the living matters. Standing crop is amount of biomass present in an ecosystem.