Soil organic carbon turnover parameters by model.
Source:R/datasets_balances.R
soc_turnover_params.RdPer-model structural parameters for the five soil organic carbon turnover models ported in Module B: HSOC (Spain two-pool plus inert organic matter), RothC (five pools), ICBM (two pools), AMG (active plus stable), and Century (five pools). Stored in long form so a builder can assemble each model's pool rate constants, initial pool fractions, inter-pool transfer fractions, and texture/lignin defaults. Climate rate modifiers are model-native and live in the turnover functions, not in this table.
Format
A tibble in long form with columns:
- model
Model namespace: one of
"hsoc","rothc","icbm","amg","century".- component
Pool or structural component the parameter belongs to (e.g.
"fresh","dpm","young","active","str","defaults").- parameter
Parameter name (e.g.
"decomposition_rate","init_active_fraction","transfer_fraction","base_rate_weekly").- value
Numeric parameter value.
- unit
Unit of the value (e.g.
"per_year","fraction","per_week").- description
Human-readable description of the parameter.
Source
RothC: Coleman, K. & Jenkinson, D. S. (1996). RothC-26.3: A model for the turnover of carbon in soil. In D. S. Powlson et al. (Eds.), Evaluation of Soil Organic Matter Models (NATO ASI Series I, Vol. 38, pp. 237-246). Springer. doi:10.1007/978-3-642-61094-3_17 . ICBM: Andren, O. & Katterer, T. (1997). ICBM: The introductory carbon balance model for exploration of soil carbon balances. Ecological Applications, 7(4), 1226-1236. doi:10.1890/1051-0761(1997)007[1226:ITICBM]2.0.CO;2 . AMG: Saffih-Hdadi, K. & Mary, B. (2008). Modeling consequences of straw residues export on soil organic carbon. Soil Biology and Biochemistry, 40(3), 594-607. doi:10.1016/j.soilbio.2007.08.022 . Century: Parton, W. J., Schimel, D. S., Cole, C. V. & Ojima, D. S. (1987). Analysis of factors controlling soil organic matter levels in Great Plains grasslands. Soil Science Society of America Journal, 51(5), 1173-1179. doi:10.2136/sssaj1987.03615995005100050015x ; SoilR Century implementation: Sierra, C. A., Mueller, M. & Trumbore, S. E. (2012). Models of soil organic matter decomposition: the SoilR package, version 1.0. Geoscientific Model Development, 5, 1045-1060. doi:10.5194/gmd-5-1045-2012 . Inert organic matter initialisation (RothC, HSOC): Falloon, P., Smith, P., Coleman, K. & Marshall, S. (1998). Estimating the size of the inert organic matter pool from total soil organic carbon content for use in the Rothamsted carbon model. Soil Biology and Biochemistry, 30(8-9), 1207-1211. doi:10.1016/S0038-0717(97)00256-3 .
Examples
soc_turnover_params
#> # A tibble: 43 × 6
#> model component parameter value unit description
#> <chr> <chr> <chr> <dbl> <chr> <chr>
#> 1 hsoc fresh decomposition_rate 0.48 per_year Fresh pool first-order d…
#> 2 hsoc humus decomposition_rate 0.02 per_year Humus pool first-order d…
#> 3 hsoc iom decomposition_rate 0 per_year Inert organic matter poo…
#> 4 rothc dpm decomposition_rate 10 per_year Decomposable plant mater…
#> 5 rothc rpm decomposition_rate 0.3 per_year Resistant plant material…
#> 6 rothc bio decomposition_rate 0.66 per_year Microbial biomass pool d…
#> 7 rothc hum decomposition_rate 0.02 per_year Humified organic matter …
#> 8 rothc iom decomposition_rate 0 per_year Inert organic matter poo…
#> 9 rothc input dpm_rpm_ratio 1.44 ratio Default ratio of decompo…
#> 10 rothc dpm init_active_fraction 0.01 fraction Initial fraction of acti…
#> # ℹ 33 more rows