Estimating the organic carbon stabilisation capacity and saturation deficit of soils: a New Zealand case study ( Biogeochemistry, August 2014, Volume 120, Issue 1–3, pp 71–87)

Abstract: The capacity of a soil to sequester organic carbon can, in theory, be estimated as the difference between the existing soil organic C (SOC) concentration and the SOC saturation value. The C saturation concept assumes that each soil has a maximum SOC storage capacity, which is primarily determined by the characteristics of the fine mineral fraction (i.e. 0. The median saturation deficit for both Allophanic and non-Allophanic soils was 12 mg C g−1 at 0–15 cm depth and 15 mg C g−1 at 15–30 cm depths. Improving predictions of the saturation deficit of soils may be important to developing and deploying effective SOC sequestration strategies.

Maximum storage of soil organic carbon in Western Australian soils is rarely achieved, as sub-optimal climatic conditions (rainfall; summer fallow) and soil management issues (biological, chemical and physical constraints) often restrict plant growth and returns of plant residues.

To increase organic carbon storage in soil, it is important that management practices remove any constraints to plant growth, where it is cost effective to do so.

Strategies that deliver organic matter below the surface 10 cm soil layer are more likely to build soil organic carbon . source : soilquality.org.au 

Dear Birhanu Iticha, I hope these links help you

https://www.nature.com/articles/srep27173

http://onlinelibrary.wiley.com/doi/10.1029/2005GB002576/full

Dear Birhanu Iticha,

Please see the following links for more detailed information.

http://www.weforest.org/newsroom/celebrating-world-soil-day?gclid=EAIaIQobChMIi9_cxoyw1gIVyLjACh2_Cg6HEAAYASAAEgJXvvD_BwE

http://soilhealthinstitute.org/?gclid=EAIaIQobChMIi9_cxoyw1gIVyLjACh2_Cg6HEAAYAiAAEgLXdvD_BwE

https://s3.amazonaws.com/soilquality-production/fact_sheets/32/original/How_much_carbon_can_soil_store_web.pdf

Thanks !!