Monitoring and Verifying Changes of Organic Carbon in Soil

Post, W. M.; Izaurralde, R. C.; Mann, L.K.; Bliss, Norman B.

doi:10.1007/978-94-017-3089-1_4

Cited by 108 publications

(145 citation statements)

References 49 publications

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“…The amount of SOC stored within the soil ecosystem is dependent on a number of factors including the quality and quantity of organic matter returned to soil, the soils ability to retain organic carbon, soil temperature and rainfall (Grace, Post et al 2006). These factors determine the equilibrium of SOC through two biotic processes: the production of organic matter by terrestrial organisms, and; decomposition of organic matter by soil organisms (Kirschbaum 2000); (Post, Izaurralde et al 2001). Soil carbon density differs between soil types, increases with increasing rainfall and decreasing temperature and characteristically declines down the soil profile (Valzano, Murphy et al 2005); (Grace et al 2006).…”

Section: Relationships Between Carbon Stocks and Australian Soilsmentioning

confidence: 99%

“…Currently, there is no internationally agreed methodology to verify changes in SOC, in part, because there is a lack of robust science-based, cost-effective, practical and flexible options for monitoring and verification (Post et al 2001). The default depth for soil sampling by the Intergovernmental Panel for Climate Change (IPCC) is up to 30 cm (Polglase, Paul et al 2000).…”

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

“…However this shallow depth can lead to problems in the changes in the bulk density by the loss, addition, shrinking or swelling of soil material (McKenzie et al 2000). Research by Post et al (2001) documented a variety of methods and standards for measuring soil properties including (Klute, 1986); (Carter, 1993); (Cully, 1993); (Weaver et al, 1994); (Sparks, 1996); (Magdoff et al, 1996); (USDA-NRCS, 1996). The Walkley-Black procedure is a common method of determining SOC in Australia and is often recommended for SOC analyses when a total carbon analysis is not required.…”

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

“…These methods are effective for evaluating SOC changes only at relatively low precision (20-50 % error) (Post and Kwon 2000); (Byrne, Kiely et al 2007). Thus, such coarse carbon stock information is unlikely to provide sufficient detail over short periods of 3 to 5 years to be of use in carbon market SOC monitoring (Post et al 2001). …”

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

“…These parameter measurements require a quantified measurement error to be confident of the quality and usefulness of the data set (Post et al 2001). General soil sampling practices also need to take into account seasonal variations in the water and root content of soil columns, which often affect bulk density calculations.…”

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

See 4 more Smart Citations

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

McHenry

2009

Mitig Adapt Strateg Glob Change

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Section: Relationships Between Carbon Stocks and Australian Soilsmentioning

confidence: 99%

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

Section: Monitoring Carbon In the Soil For Carbon Marketsmentioning

confidence: 99%

See 3 more Smart Citations

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

McHenry

2009

Mitig Adapt Strateg Glob Change

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Soil organic carbon stabilization by iron in permafrost regions of the Qinghai‐Tibet Plateau

Zhao

Guo

et al. 2016

Geophysical Research Letters

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A close relationship exists between soil organic carbon (SOC) and reactive iron; however, little is known about the role of iron in SOC preservation in permafrost regions. We determined the amount of SOC associated with reactive iron phases (OC‐Fe) in the permafrost regions of the Qinghai‐Tibetan Plateau (QTP). The results showed that the percentage of OC‐Fe ranged between 0.9% and 59.5% in the upper 30 cm of soil and that the OC‐Fe represented 19.5 ± 12.3% of the total SOC pool. No clear vertical distribution pattern in OC‐Fe was present in the upper 1 m of soil. Throughout the year, the OC‐Fe accounted for relatively stable proportions of the total SOC pool. This study suggests that approximately 20% of SOC is a potential rusty OC pool in the permafrost regions of the QTP. Biogeochemical processes related to the reaction of iron may play important roles in soil carbon cycles in permafrost regions.

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Sampling probes affect bulk density and soil organic carbon measurements

Sharma

Wilson

Ochsner

et al. 2020

Agricultural & Env Letters

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Soil sampling equipment can be a major source of bias in soil organic carbon (SOC) stock estimations. The objective of this study was to evaluate the impact of sampling probes on soil bulk density (BD) and SOC stocks calculated using fixed depth (FD) and equivalent soil mass (ESM) methods. Soil samples were collected to 30 cm using three probes with different diameters and divided into 0-10-, 10-20-, and 20-30-cm layers. The probe with smallest diameter measured higher BD at 0-10 cm in 42% of fields and was significantly different when averaged across fields, while no consistent differences were observed at lower depths. This study shows that sampling probes with different diameters may introduce biases in BD and SOC measurements at individual or combined soil layers when calculated using the FD approach. The ESM approach reduced the differences in mean SOC stocks calculated using different probes.

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Monitoring and Verifying Changes of Organic Carbon in Soil

Cited by 108 publications

References 49 publications

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

Farm soil carbon monitoring developments and land use change: unearthing relationships between paddock carbon stocks, monitoring technology and new market options in Western Australia

Soil organic carbon stabilization by iron in permafrost regions of the Qinghai‐Tibet Plateau

Sampling probes affect bulk density and soil organic carbon measurements

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