To assess carbon sequestration in the agricultural and natural systems, it is usually required to report soil organic carbon (SOC) as mass per unit area (Mg ha-1) for a single soil layer (e.g., the 0-0.3 m ploughing layer). However, if the SOC data are reported as relative concentration (g kg-1 or %), it is required to compute the SOC stock and its standard deviation (SD) for a given layer as the product of SOC concentration and bulk density (BD). For a proper computation, it is required to consider that these two variables are correlated. Moreover, if the data are already reported as SOC stock for multiple sub-layers (e.g., 0-0.15 m, 0.15-0.3 m) it is necessary to compute the SOC stock and its SD for a single soil layer (e.g., 0-0.3 m). The correlation between stocks values from adjacent and non-adjacent soil sub-layers must be accounted to compute the SD of the single soil layer. The present work illustrates the methodology to compute SOC stock and its SD for a single soil layer based on SOC concentration and BD also from multiple sub-layers. An Excel workbook automatically computes the means of stocks and SD saving the results in a ready-to-use database. • Computation of a carbon (SOC) stock and its standard deviation (SD) from the product between SOC concentration and bulk density (BD), being correlated variables. • Computation of a SOC stock and its SD from the sum of SOC stocks of multiple correlated sub-layers. • An Excel workbook automatically computes the means of SOC stocks and SD and saves the results in a ready-to-use database.
Computation of total soil organic carbon stock and its standard deviation from layered soils / T. Tadiello, A. Perego, E. Valkama, C. Schillaci, M. Acutis. - In: METHODSX (AMSTERDAM). - ISSN 2215-0161. - 9:(2022), pp. 101662.1-101662.7. [10.1016/j.mex.2022.101662]
Computation of total soil organic carbon stock and its standard deviation from layered soils
T. Tadiello
Primo
;A. Perego;C. Schillaci;M. AcutisUltimo
2022
Abstract
To assess carbon sequestration in the agricultural and natural systems, it is usually required to report soil organic carbon (SOC) as mass per unit area (Mg ha-1) for a single soil layer (e.g., the 0-0.3 m ploughing layer). However, if the SOC data are reported as relative concentration (g kg-1 or %), it is required to compute the SOC stock and its standard deviation (SD) for a given layer as the product of SOC concentration and bulk density (BD). For a proper computation, it is required to consider that these two variables are correlated. Moreover, if the data are already reported as SOC stock for multiple sub-layers (e.g., 0-0.15 m, 0.15-0.3 m) it is necessary to compute the SOC stock and its SD for a single soil layer (e.g., 0-0.3 m). The correlation between stocks values from adjacent and non-adjacent soil sub-layers must be accounted to compute the SD of the single soil layer. The present work illustrates the methodology to compute SOC stock and its SD for a single soil layer based on SOC concentration and BD also from multiple sub-layers. An Excel workbook automatically computes the means of stocks and SD saving the results in a ready-to-use database. • Computation of a carbon (SOC) stock and its standard deviation (SD) from the product between SOC concentration and bulk density (BD), being correlated variables. • Computation of a SOC stock and its SD from the sum of SOC stocks of multiple correlated sub-layers. • An Excel workbook automatically computes the means of SOC stocks and SD and saves the results in a ready-to-use database.File | Dimensione | Formato | |
---|---|---|---|
1-s2.0-S2215016122000462-main.pdf
accesso aperto
Tipologia:
Publisher's version/PDF
Dimensione
748.41 kB
Formato
Adobe PDF
|
748.41 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.