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Are soils of Iowa USA currently a carbon sink or source? Simulated changes in SOC stock from 1972 to 2007

Dates

Year
2010

Citation

Liu, Shuguang, Tan, Zhengxi, Li, Zhengpeng, Zhao, Shuqing, and Yuan, Wenping, 2010, Are soils of Iowa USA currently a carbon sink or source? Simulated changes in SOC stock from 1972 to 2007: Agriculture, Ecosystems & Environment, v. 140, no. 1–2, p. 106-112.

Summary

Upscaling the spatial and temporal changes in carbon (C) stocks and fluxes from sites to regions is a critical and challenging step toward improving our understanding of the dynamics of C sources and sinks over large areas. This study simulated soil organic C (SOC) dynamics within 0–100 cm depth of soils across the state of Iowa in the USA from 1972 to 2007 using the General Ensemble biogeochemical Modeling System (GEMS). The model outputs with variation coefficient were analyzed and assembled from simulation unit to the state scale based upon major land use types at annual step. Results from this study indicate that soils (within a depth of 0–100 cm) in Iowa had been a SOC source at a rate of 190 ± 380 kg C ha−1 yr−1. This was likely [...]

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Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1016/j.agee.2010.11.017
ISSN http://sciencebase.gov/vocab/identifierScheme 0167-8809

Citation Extension

citationTypeJournal Article
journalAgriculture, Ecosystems & Environment
parts
typePages
value106-112
typeVolume
value140
typeNumber
value1–2

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